| Airline | State or territory | Image | IATA | ICAO | Callsign | Hubs and focus cities | Commenced operations | Ceased operations | Notes |
|---|
| 0–9 |
| 135 Airlines | Texas | | | GNL | | Dallas Love Field | 1995 | 1995 | [1] |
| 4 W Air | Alaska | | | | | King Salmon | 2003 | 2003 | [2] |
| A |
| AAA Air Enterprises | Nebraska | | | | | Eppley Airfield | 1977 | 1986 | Acquired byMid-Continent Airlines[3] |
| AAI Alaska Aeronautical Industries | Alaska | | YC | ALR | | Anchorage | 1954 | 1987 | Agreement withContinental Airlines[4] |
| AAXICO Airlines | Florida |  | | | | Miami | 1946 | 1965 | Acquired bySaturn Airways, w/ AAXICO the surviving management and ownership. |
| Abbe Air Cargo | Alaska | | | | | Wasilla | 2001 | 2003 | OperatedC-47[5] |
| ABC Airlines | California | | | | | Ontario | 1965 | 1966 | [6] |
| Absaroka Airways | Montana | | | | | Red Lodge | 1994 | 2012 | Scenic flights around theBeartooth Mountains. OperatedCessna 172[7] |
| ACA Aviation Corporation of the Americas | Alaska | | | | | Anchorage | 1927 | 1932 | Founded by Juan Trippe[8] |
| Academy Airlines | Georgia |  | | ACD | ACADEMY | Atlanta | 1979 | 2006 | [9] |
| AccessAir | Iowa | | ZA | CYD | CYCLONE | Des Moines | 1998 | 2001 | |
| Ace Air Cargo Express | Ohio | | CG | AER | | Cleveland Hopkins | 1976 | 1982 | Renamed to Shalkow Air Cargo Express. OperatedC-47[10] |
| Ace Airways | Massachusetts | | | | | | 1965 | 1971 | OperatedBeech D18S[11] |
| Ace Aviation | Maine | | | | | | 1979 | 2000 | Air charter service[12] |
| ACM Aviation | California | | | BJT | BAYJET | San Jose | ? | 2010 | Acquired byTWC Aviation[13] |
| Action Airlines | Connecticut | | XQ | AXQ | ACTION AIR | Goodspeed | 1979 | 2000 | [14] |
| Active Aero Charter | Michigan | | | AVR | ACTIVE AERO | Willow Run | 1999 | 2000 | [15] |
| ADI Aerodynamics | Michigan | | 4A | DYN | AERODYNAMICS | Oakland Pontiac | 2011 | 2018 | Acquired byCalifornia Pacific Airlines. OperatedEmbraer ERJ 145[16] |
| ADI Domestic Airlines | Illinois | | | C14 | | Chicago O'Hare | 1992 | 1998 | [17] |
| Adirondack Airlines | New York | | | | | Adirondack | 1991 | 1991 | [18] |
| Admiral Airways | California | | | | | Burbank | 1961 | 1962 | Supplemental air carrier. OriginallyQuaker City Airways.CAB refused to certificate the airline in 1962 due tocombine activities. |
| Admiralty Air | Florida | | | | | Palm Beach | 2009 | 2017 | OperatedEmbraer ERJ-135[19] |
| Ads-Aloft | Washington | | | | | Seattle | 1994 | 1995 | Banner towing company[20] |
| Advanced Air Management | California | | | | | Burbank | 2000 | 2015 | Renamed to Zetta Jet[21] |
| Adventure Airlines | Nevada | | | | | Las Vegas McCarran | 1995 | 1996 | [22] |
| Adventure Aviation | Idaho | | | | | Coeur d'Alene | 1995 | 1995 | Scenic flights[23] |
| Aerial Transit Company | Florida |  | | AEZ | AERIAL TRANZ | Miami | 1982 | 1994 | Sold toSoutheast Cargo Airlines in 1994. Operated707,DC-6[24] |
| Aerie Airlines | Tennessee | | | | | Clarksville–Montgomery | 1971 | 1979 | [25] |
| Aero Coach | Florida | | DF | DFA | AEROCOACH | Fort Lauderdale | 1983 | 1991 | OperatedCessna 402,Embraer Bandeirante[26] |
| Aero Commuter | California |  | | | | Long Beach | 1967 | 1969 | Merged withCable Commuter Airlines and Catalina Airlines[27] |
| Aero Contractors | North Carolina | | | | Smithfield | | 1979 | 2006 | Charter carrier that provided flights forCIA[28] |
| Aero Corporation of California | California | | | | | Los Angeles | 1926 | 1930 | OperatedUniversal Aircraft[29] |
| Aero Flight Services | Florida | | | | | Fort Lauderdale | 1976 | 2000 | OperatedHawker 400A,Learjet 23,Learjet 25[30] |
| Aero Limited | Florida | | | | | Miami | 1919 | 1919 | Acquired byAeromarine Sightseeing and Navigation Company[31] |
| Aero Taxi Rockford | Illinois | | | | | Chicago Rockford | 1998 | 2001 | Cargo carrier[32] |
| Aero Union | California |  | | | | Chico | 1960 | 2011 | Lost federal firefighting contract as a result of theU.S. Forest Service airtanker scandal.[33] |
| Aero Virgin Islands | Virgin Islands | | | | | St. Thomas | 1977 | 1990 | |
| Aero West Airlines | Colorado | | | | | Colorado Springs | 1982 | 1982 | Acquired the assets ofRoyal West Airlines. OperatedDC-3[34] |
| Aeroamerica | Washington |  | EO | AEO | AEROAMERICA | Seattle Berlin Tegel | 1973 | 1982 | Uncertificated carrier |
| Aerocosta | Florida | | | | | Miami | 1972 | 1972 | Cargo carrier[35] |
| Aerodynamics Inc. | Georgia | | 4A | DYN | AERODYNAMICS | Denver | 1959 | 2018 | Acquired byCalifornia Pacific Airlines. |
| Aeroflex Corporation | New Jersey | | | | | Aeroflex–Andover | 1958 | 1971 | OperatedBeech E18S,Beech Bonanza,Hiller UH-12[36] |
| Aerolaska | Alaska | | | | | | 1982 | 1986 | [37] |
| Aeromarine Airways | Florida |  | | | | Key West | 1921 | 1924 | OperatedFelixstowe F5L flying boat[38] |
| Aeromarine West Indies Airways | Florida |  | | | | Biscayne Bay | 1920 | 1924 | Formed by a merger betweenFlorida West Indies Airways andAeromarine Sightseeing and Navigation Company. Reorganized asAeromarine Airways |
| Aeromech Airlines | West Virginia |  | KC | RZZ | AEROMECH | North Central West Virginia Airport | 1951 | 1983 | Merged intoWright Air Lines |
| Aeronaut Air Services | Mississippi | | | | | Gulfport-Biloxi | 1966 | 1966 | OperatedDC-3[39][40] |
| Aerostar Airlines | Georgia | | | | | Atlanta | 1981 | 1983 | Went bankrupt and sold toFlight International Airlines. OperatedBoeing 727[41] |
| Aerosun International | Florida | | | ASI | AEROSUN | Miami | 1978 | 1982 | Established as Red Carpet Airlines. OperatedConvair 440,DC-3[42] |
| Aerovias Sud Americana | Florida |  | JI | JI | | St Petersburg | 1947 | 1965 | Scheduled freight operator from Florida to Latin America. |
| AEX Air | Arizona | | | DST | DESERT | Phoenix Sky Harbor | 2004 | 2006 | Charter operator[43] |
| aha! | Nevada |  | EV | ASQ | ACEY | Reno-Tahoe | 2021 | 2022 | Commenced operations asExpressJet in 1987. Announced liquidation in 2022.[44] |
| Aho Flying Service | Alaska | | | | | Anchorage | 1930 | 1930 | [45] |
| Air Alaska Cargo | Washington | | 8S | | | Spokane | 1986 | 1998 | Began asSalair[46] |
| Air America | |  | | | | | | 1954 | Irregular air carrier shut in 1954 byCAB for flying scheduled service |
| Air America | District of Columbia |  | GM | AMR | AIR AMERICA | Saigon Vientiane Udorn | 1950 | 1976 | Founded byClaire Lee Chennault asCivil Air Transport. Operated by theCIA |
| Air America | California | | GM | AMR | | Los Angeles | 1989 | 1990 | Established asTotal Air in 1984[47] |
| Air Americana | Florida | | | | | Tampa | 1965 | 1981 | Established asAerovias Sud Americana in 1947. OperatedDC-3,Lockheed L-1649[48] |
| Air Astro | California | | | | | Los Angeles | 1968 | 1971 | OperatedCarstedt Jet Liner 600[49] |
| Air Atlanta | Georgia |  | CC | CRB | AIRLAN | Atlanta | 1984 | 1987 | |
| Air Aurora | Illinois | | AX | AAI | | Aurora | 1977 | 2000 | Air taxi operator[50] |
| Air Bahia | California | | | | | San Diego | 1979 | 1980 | |
| Air Bama | Alabama | | | ABI | | Montgomery | 1978 | 1984 | OperatedBeech 18,HP Jetstream[51] |
| Air Berlin USA | |  | AB | BER | AIR BERLIN | Berlin Tegel | 1978 | 1992 | Reconstituted asAir Berlin GmbH & Co. Luftverkehrs KG in 1990 under German company law. |
| Air California | California |  | OC | ACL | AIRCAL | Orange County | 1967 | 1987 | Merged intoAmerican Airlines. |
| Air Cargo Express | Alaska |  | 3K | FXG | CARGO EXPRESS | Fairbanks | 1995 | 1995 | [52] |
| Air Cargo Hawaii | Hawaii | | | | | Honolulu | 1977 | 1992 | Established in 1973 as Air Distribution. OperatedShorts Skyvan[53] |
| Air Cargo Masters | South Dakota | | | | | Sioux Falls | 1995 | 2006 | OperatedBeech 1900,Beech Queen Air,SA227[54] |
| Air Cargo Transport | New Jersey | | | | | Newark | 1945 | 1948 | OperatedC-47[55][56] |
| Air Caribbean | Puerto Rico | | | | | San Juan | 1975 | 1979 | |
| Air Carolina | South Carolina | | FN | | | Florence | 1967 | 1980 | Established asFlorence Airlines. Absorbed by Atlantis Airlines.[57] |
| Air Carriers | Alabama | | | FCI | | Chilton County | 1989 | 2003 | OperatedCessna 208 Caravan[58][59] |
| Air Carriers Express Services | Georgia | | | | | Atlanta | 1985 | 1985 | OperatedCessna 208 Caravan[60][61] |
| Air Catalina | California | | | | | Catalina | 1965 | 1976 | Founded as Catalina Channel Airlines[62] |
| Air Central | Minnesota | | | | | Minneapolis–Saint Paul | 1972 | 1973 | OperatedCessnas[63] |
| Air Central | Oklahoma | | | | | Enid Woodring | 1978 | 1980 | Renamed toTrans-Central Airlines. OperatedPiper Chieftain[64] |
| Air Central | Texas | | | ACS | AIR CENTRAL | Harlingen | 1978 | 1979 | [65] |
| Air Chaparral | Nevada | | | MAV | MAVERICK | Reno–Tahoe | 1980 | 1983 | |
| Air Charter Service | California | | | | | Riverside | 1968 | 1972 | OperatedBeech Bonanza,Cessna 150[66] |
| Air Charter West | |  | | | | | 1974 | 1977 | [67] |
| Air Chicago | Illinois | | | | | Chicago Midway | 1981 | 1982 | [68] |
| Air Chico | California | | | | | Chico | 1980 | 1982 | [65] |
| Air Choice One | Missouri |  | 3E | WBR | WEBER | St. Louis | 1979 | 2022 | Transferred to theSouthern Airways Express brand.[69] |
| Air Colorado | Colorado | | | TAC | | Denver | 1980 | 1981 | [70] |
| Air Commuter Airlines | Ohio | | | | | Cleveland Burke | 1967 | 1968 | Merged withWright Airlines[65] |
| Air Continental | Ohio | | | NAR | NIGHT AIR | Cleveland Hopkins | 1979 | 1989 | Acquired byUS Check Airlines. OperatedLearjet 23[71] |
| Air Contract Cargo | Michigan | | | | | Oakland County | 1983 | 1992 | ToGulf and Caribbean Cargo[72] |
| Air Cortez | California |  | AB | ACI | AIR CORTEZ | Ontario | 1977 | 1986 | |
| Air Distribution | Hawaii | | | | | Honolulu | 1973 | 1975 | ToAir Cargo Hawaii. OperatedShorts Skyvan[73] |
| Air East | Pennsylvania | | | | | Johnstown–Cambria | 1967 | 1974 | [74] |
| Air East | Texas | | | | | Scholes–Galveston | 1969 | 1971 | Established as Aerosmith Airlines[75] |
| Air East Airlines | Louisiana | | | | | Lafayette | 1970 | 1980 | Connected toNew Orleans[65] |
| Air Enterprises | West Virginia | | | | | Huntington Tri-State | 1969 | 1971 | Renamed toTri-State Flying Service[76] |
| Air Excursions | Alaska | | | | | Gustavus | 2013 | 2013 | Founded by Steve Wilson. ToAlaska Seaplane[77] |
| Air Exec Ontario | California | | | | | Ontario | 1981 | 1985 | OperatedDC-3[78] |
| Air Express | Colorado | | | | | Denver | 1932 | | [65] |
| Air Ferries | California | | | | | Alameda | 1930 | 1933 | Connected toSan Francisco andOakland[65] |
| Air Florida | Florida |  | QH | FLA | PALM | Miami | 1971 | 1984 | Air Florida Commuter was an affiliate[79] |
| Air Florida Commuter | Florida | | 1980 |
| Air Hawaii | Hawaii | | HP | | | Honolulu | 1977 | 1983 | Founded by Bruce McKenzie by a merger with Island Pacific Air and Air Molokai[80] |
| Air Hawaii | Hawaii |  | XK | AHC | AIR HAWAII | Honolulu | 1985 | 1986 | |
| Air Hemet | California | | | | | Hemet-Ryan | 1964 | 1984 | Connected to desert cities withLos Angeles[65] |
| Air Holiday International | Wisconsin | | | | | Milwaukee | 1973 | 1977 | Owned by Robert W. Larson.[81][82] |
| Air Idaho | Idaho | | | | | Twin Falls | 1974 | 1975 | Founded as Trans Magic Airlines[83] |
| Air Illinois | Illinois |  | UX | AIL | AIR ILLINOIS | Springfield–Branson | 1970 | 1984 | |
| Air Indiana | Indiana | | | | | Evansville | | | |
| Air Iowa | Iowa | | | | | Muscatine | 1971 | 1974 | OperatedBeech 18[84] |
| Air Irvine | California | | | | | Orange County | 1982 | 1983 | Acquired byDash Air[85] |
| Air Juneau | Alaska | | | | | Juneau | 2001 | 2001 | [86] |
| Air Kentucky | Kentucky | | KN | AKY | AIR KENTUCKY | Owensboro–Daviess | 1970 | 1989 | Commenced operations in 1974. |
| Air Ketchum | Idaho | | L3 | | | Hailey | 1999 | 2000 | OperatedBeech King Air[87] |
| Air L.A. | California |  | UE | UED | | Los Angeles | 1982 | 1995 | PurchasedConquest Airlines. |
| Air Lincoln | Illinois | | | ALN | CHICAGO LINCOLN | Chicago Midway | 1982 | 1982 | [65] |
| Air Link Airlines | Colorado | | | LNK | AIR LINK | Denver | 1981 | 1984 | Founded asValley Airpark. Acquired by Fort Collins Flying Service in 1981.[88] |
| Air Link Airways | Texas | | | | | Houston Bush | 1986 | 1988 | [89] |
| Air Marc | New York | | | | | New York Kennedy | 1984 | 1985 | Founded as Eastman Airways.[90] |
| Air Metro Airlines | Michigan | | DZ | | | Traverse City | 1975 | 1976 | OperatedBeech 99[91] |
| Air Miami | Florida | | VW | | | Miami | 1977 | 1980 | Renamed to North American Airlines. OperatedCASA 212[92] |
| Air Michigan | Michigan | | | | | Kalamazoo | 1969 | 1972 | OperatedBeech 99,Twin Otter,Cessna 310[65] |
| Air Mid-America Airlines | Illinois | | | | | Chicago Meigs Field | 1969 | 1970 | OperatedDC-3[93] |
| Air Midway | Nebraska | | | | | Kearney | 1992 | 1994 | Founded by Clyde Mikelson. OperatedCessna 185,Piper Aztec[94] |
| Air Midwest | Kansas |  | ZV | AMW | AIR MIDWEST | Kansas City | 1965 | 2008 | Commenced operations in 1967. |
| Air Missouri | Michigan | | BF | | | Kirksville | 1976 | 1978 | Established asHorizon Airways. OperatedCessna 207[65] |
| Air Molokai | Hawaii | | | | | Honolulu | 1985 | 1988 | Founded asTropic Airlines[65] |
| Air National | |  | 6A | ANE | AIR TARA | | 1981 | 1984 | [95] |
| Air Nebraska | Nebraska | | | | | Kearney | 1976 | 1981 | OperatedCessna 402,Piper Navajo[96] |
| Air Nevada | California | | | | | Los Angeles | 1969 | 1970 | Established as Hawthorne-Nevada Airlines. OperatedDC-3[97] |
| Air Nevada | Nevada |  | | ANV | AIR NEVADA | Las Vegas McCarran | 1974 | 1998 | |
| Air New England | Massachusetts |  | NE | | | Boston | 1970 | 1981 | |
| Air New Mexico | New Mexico | | | | | Las Cruces | 1980 | 1980 | Founded asZia Airlines[98] |
| Air New-Mexico | New Mexico | | | | | | 1961 | 1964 | [99] |
| Air New Orleans | Alabama | | NT | ANL | AIR NEW ORLEANS | Birmingham–Shuttlesworth | 1981 | 1988 | |
| Air New Ulm | Minnesota | | | | | New Ulm | 1973 | 1977 | Renamed toLake State Airways[100] |
| Air Newark Inc. | New Jersey | | 2N | NER | NEWAIR | Fort Lee | 1961 | 1964 | [101] |
| Air Niagara | New York | | NA | | | Niagara Falls | 1978 | 1984 | |
| Air North | Vermont |  | NO | ANO | AIR NORTH | Burlington | 1963 | 1988 | Established asNorthern Airways. Contract forAllegheny Commuter in 1970. Acquired byBrockway Air in 1983.[65] |
| Air North | Alaska | | | | | Fairbanks | 1982 | 1984 | [102] |
| Air O'Hare | Illinois | | | | | Chicago O'Hare | 1974 | 1975 | OperatedC-47AQ Skytrain[103] |
| Air Oasis | California | | | | | | 1962 | 1964 | OperatedDC-3[104] |
| Air Olympia | Washington | | | | | Olympia | 1981 | 1982 | [105] |
| Air One | Missouri |  | CB | AON | GATEWAY | St. Louis | 1983 | 1984 | Remains merged intoInterstate Airlines in 1987. All first class service. |
| Air Oregon | Oregon | | JT | | AIR OREGON | Portland | 1978 | 1981 | Merged withHorizon Air. |
| Air Pac | Alaska | | 5P | APM | ALASKA PACIFIC | Dutch Harbor | 1982 | 1986 | Renamed toAir Pacific[106] |
| Air Pacific | California |  | IK | | | Oakland | 1970 | 1981 | Founded asEureka Aero. Merged withGem State Airlines to formGolden Gate Airlines. |
| Air Pennsylvania | Pennsylvania | | | | | Reading | 1976 | 1982 | |
| Air Rajneesh | Oregon |  | | | | Big Muddy Ranch | 1985 | 1985 | OperatedConvair 240[107] |
| Air Resorts | California |  | UZ | ARZ | AIR RESORTS | McClellan–Palomar | 1975 | 1996 | [108] |
| Air Response North | New York | | | RPS | | New York-LaGuardia | 1986 | 2003 | Renamed to Global Air Response. OperatedLearjet 24,Learjet 25,Learjet 35[109] |
| Air San Juan | Washington | | | | | Friday Harbor | 1990 | 1991 | Founded asChartAir[110] |
| Air Sedona | Arizona | | | | | Sedona | 1983 | 1988 | [111] |
| Air Services | |  | | | | | | 1959 | Supplemental air carrier shut byCAB in 1959 forcombine activities |
| Air Shamrock | |  | | | | | 1999 | 2007 | |
| Air Shannon | Virginia | | | | | Washington National | 1966 | 1967 | [112] |
| Air South (Florida) | Florida | https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSIcCJgqst_P_XUGzMDSc01dF43IPxOJPoMh48n5aK1Lg&s | GD | | SHAWNEE | Miami Homestead | 1986 | 1987 | OperatedTrislander. Owner previously associated withShawnee Airlines, Bahamas Caribbean Airline, Aero International, Bahamas Air Bridge and Argosy Airlines[113][114] |
| Air South (Georgia) | Georgia |  | | | | Atlanta | 1969 | 1978 | Founded asNationwide Airlines Southeast. Acquired byFlorida Airlines in 1975. |
| Air South (South Carolina) | South Carolina |  | WV | KKB | KHAKI BLUE | Columbia (SC) | 1993 | 1997 | Commenced operations in 1994. |
| Air Spirit | Texas | | | SIP | AIR SPIRIT | Dallas Love Field | 1981 | 1984 | Founded as Cen-Tex Airlines. OperatedEmbraer Bandeirante[115] |
| Air St. Thomas | Virgin Islands | | ZP | SST | | St. Thomas | 1975 | 2005 | |
| Air Sunshine | Florida | | AG | AAT | | Miami | 1974 | 1979 | Founded as American Air Taxi in 1972. Absorbed byAir Florida[116] |
| Air Tahoma | Ohio | | | HMA | TAHOMA | Columbus | 1995 | 2009 | [117] |
| Air Taos | New Mexico | | | | | Taos | 1977 | 1979 | [118] |
| Air Taxi | South Carolina | | | | | Florence | 1969 | 1969 | RenamedFlorence Airlines[119] |
| Air Texana | Texas | | | | | Lufkin | 1980 | 1981 | [120] |
| Air Traders International | California | | | | | Los Angeles | 1980 | 1980 | Operated 2L-1049 Super Constellation[121][122] |
| Air Traffic Service | | | | | | | 1972 | 1980 | [123] |
| Air Trails | California | | | | | Salinas | 1960 | 1999 | RenamedMillion Air Monterey. OperatedBeech King Air,Cessna 310,Cessna 550[124] |
| Air Train | California | | GJ | ATF | AIR TRAIN | San Jose | 1987 | 1990 | Became Emery Worldwide Airlines[125] |
| Air Transit | Arizona | | | | | Show Low | 1959 | 1968 | [126] |
| Air Transport Associates | Washington |  | | | | Seattle | 1948 | 1953 | Irregular air carrier shut by theCAB in 1953 for flying scheduled service. |
| Air Transport Services | Alaska | | | | | Kodiak | 1984 | 1988 | Acquired byPenAir[127] |
| Air Travel | California | | | | | Oakland | 1946 | 1947 | Original name ofOverseas National Airways. Became Calasia Air Transport in 1947 |
| Air Trine | Florida | | | | | Miami | 1976 | 1977 | OperatedConvair 880[128][129] |
| Air U.S. | Wyoming Colorado | | | | | Riverton Denver | 1978 | 1984 | RenamedExcellair[130] |
| Air Vectors Airways | New York | | | | | Newburgh | 1979 | 1985 | Founded by Jim Aspin. Contract carrier forFedEx.[131] |
| Air Vegas | Nevada |  | 6V | VGA | AIR VEGAS | North Las Vegas | 1971 | 2004 | |
| Air Vermont | Vermont | | MU | VER | AIR VERMONT | Burlington | 1981 | 1984 | |
| Air Virginia | Virginia | | CE | FVA | AIR VIRGINIA | Lynchburg | 1979 | 1988 | Established as Cardinal Airlines. RenamedAVAir in 1985[132] |
| Air-Lift Commuter | North Carolina | | 3L | WPK | | Raleigh Durham | 1976 | 1988 | OperatedFairchild Swearingen Metroliner[133] |
| Air-Speed | Massachusetts | | | | | Hanscom Field | 1974 | 1980 | OperatedBeech 99,Piper Cherokee[134] |
| Air21 | California |  | A7 | UBA | ROCKETEER | Fresno Yosemite | 1995 | 1997 | Operated Fokker F-28, bankrupt |
| Airborne Express | Ohio |  | GB | ABX | ABEX | Wilmington, Ohio | 1980 | 1989 | PreviouslyMidwest Air Charter. RenamedABX Air |
| Airborne Transport | Florida | | | | | Miami | 1948 | 1948 | OperatedDouglas DST-144[135][136] |
| Aircharters World | | | | WFT | WORLD FLIGHT | | 1994 | 1994 | Charter carrier[137] |
| AirCal | California |  | OC | ACL | AIRCAL | Orange County | 1981 | 1987 | Established asAir California[138] |
| Aircraft Pool Leasing Corporation | Florida | | | | | Miami | 1973 | ? | OperatedL-1049 Super Constellation[139] |
| AirExec | Maryland | | | | | Ocean City | 1973 | 1975 | OperatedTwin Otter[140] |
| Airgo Air Freight | Texas | | | | | Dallas Love Field | 1977 | 1981 | OperatedVickers Viscount,DC-3,Convair 440[141] |
| Airlift International | Florida |  | RD | AIR | AIRLIFT | Miami | 1945 | 1991 | Founded asRiddle Airlines |
| Airline Transport Carriers | California | | | | | Burbank | 1946 | 1962 | Irregular air carrier dbaCalifornia Hawaiian, sister airline toCalifornia Central |
| Airmark Aviation | |  | | TRH | TRANSTAR | | 1991 | 1993 | Renamed Transtar Airlines |
| Airmark Corporation | | | | MRC | AIRMARC | | 1983 | 1985 | VIP charters carrier[142] |
| AirNow | Vermont | | | RLR | RATTLER | Bennington | 1957 | 2011 | Established asBusiness Air |
| AirOne | | | K3 | QTN | | | 1998 | 2002 | [143] |
| Airpac | Alaska | | | APM | ALASKA PACIFIC | | 1978 | 1986 | [144] |
| Airplane Charter by Mercer | | | | | | Hollywood Burbank | 1945 | 1949 | Irregular air carrier, renamed Associated Airways in 1949. |
| Airship Airways | | | | | | Fort Lauderdale-Hollywood | 1998 | 2000 | RenamedPlanet Airways[145] |
| Airship Ventures | California |  | | | | Moffett Federal Airfield | 2008 | 2012 | |
| AirSpur | California | | OT | ASU | SPUR EXPRESS | Los Angeles | 1981 | 1985 | Acquired byEvergreen International Airlines[146] |
| AirTrain Airlines | Pennsylvania | | | | | Pittsburgh | 1993 | 1995 | Renamed Jettrain in 1996[147] |
| AirTran Airways | Florida |  | FL | TRS | CITRUS | Orlando Milwaukee | 1992 | 2014 | Merged intoSouthwest Airlines |
| AirTran JetConnect | Georgia | | Atlanta | 2002 | 2004 | |
| AirVantage Airlines | Minnesota | | 3N | AVV | AIRVANTAGE | St. Paul Downtown | 1981 | 1997 | [148] |
| Airvia Transportation Company | New York | | | | | New York City | 1929 | 1929 | OperatedSavoia-Marchetti S.55[149] |
| Airways International | Florida | | 4A | AWB | AIRNAT | Miami | 1981 | 1999 | |
| Airways of New Mexico | New Mexico | | | ANM | AIR NEW MEXICO | | 1977 | 1984 | [150] |
| Aladdin Air Services | Utah | | | | | Panguitch | 1996 | 2001 | [151] |
| Alair | Alabama | | KB | | | Anniston | 1977 | 1979 | [152] |
| Alamo Jet | Alabama | | KB | | | Stinson | 1992 | 1998 | Charter carrier[153] |
| Alaska Aerial Transportation Company | Alaska | | | | | | 1924 | 1924 | [154] |
| Alaska Air Taxi | Alaska | | | | | | 1995 | 2006 | OperatedTexas Turbines Super Otter[155] |
| Alaska Air Transport | Alaska | | | | | Juneau | 1935 | 1939 | Merged withMarine Airways to formAlaska Coastal Airlines. |
| Alaska Cargo | Alaska | | | | | | 2004 | 2004 | [156] |
| Alaska Central Airways | Alaska | | | | | Ruby | 1974 | 1981 | Founded as Tanana Air Taxi. Acquired by Harold’s Air Service in 1981.[157] |
| Alaska Coastal Airlines | Alaska |  | | | | Juneau | 1939 | 1968 | Acquired byAlaska Airlines. |
| Alaska Flying Tours | Alaska | | | | | Fairbanks | 2001 | 2001 | Tour service operator[158] |
| Alaska Interior Airlines | Alaska | | | | | Anchorage Merrill Field | 1936 | 1937 | Acquired byStar Air Lines[159] |
| Alaska International Air | Alaska |  | BF | AKA | INTERALAS | Anchorage | 1972 | 1984 | Founded asInterior Airways as anintrastate airline. AcquiredGreat Northern Airlines in 1980 and renamedMarkair in 1984 |
| Alaska Island Air | Alaska |  | | | | Petersburg Johnson | 1968 | 1988 | Founded as Lon's Flying Service[160] |
| Alaska Island Airways | Alaska | | | | | Juneau | 1946 | 1954 | Merged withAlaska Coastal Airlines[161] |
| Alaska Mountain Flying Service | Alaska | | | | | | 1992 | 2009 | [162] |
| Alaska Southern Airways | Alaska | | | | | | 1932 | 1934 | [163] |
| Alaska Star Airlines | Alaska |  | | | | Anchorage | 1932 | 1944 | Founded asStar Air Lines. RenamedAlaska Airlines in 1944.[164] |
| Alaska West Air | Alaska | | | | | | 1989 | 2009 | [165] |
| Alaska-Washington Airways | Alaska | | | | | | 1929 | 1930 | Acquired bySeattle-Wenatchee-Yakima Airways[166] |
| Alaskan Airways | Alaska | | | | | | 1930 | 1932 | Acquired byPacific Alaska Airways[167] |
| Alaskan Coastal Airways | Alaska | | | | | | 1986 | 1986 | [168] |
| Albany Air | New York | | YU | | | Albany | 1979 | 1979 | |
| Albany Air Service | New York | | | | | Albany | 1962 | 1964 | [169] |
| Alii Air Hawaii | Hawaii | | | | | | 1970 | 1975 | RenamedBrandt Air in 1975[170] |
| ALL | Colorado | | | | | Front Range | 1988 | 2006 | Cargo charter[171] |
| All American Aviation | Pennsylvania | | | | | Pittisburgh | 1937 | 1939 | |
| All Hawaii Air | Hawaii | | | | | Honolulu | 1979 | 1979 | Cargo carrier[172] |
| All Star Airlines | Massachusetts | | | ASR | ALL STAR | Woburn | 1985 | 1993 | Charter carrier[173] |
| All-American Airways | Florida | | | | | Miami | 1948 | 1960 | Supplemental air carrier renamedSaturn Airways in 1960 |
| All West Freight | Alaska | | | | | Nikiski | 1996 | 2012 | OperatedFairchild C-123 Provider[174] |
| All-America Airlines | California | | | | | Long Beach | 1994 | 1994 | [175] |
| Allcair Air Transport | Texas | | | | | Laredo | 1993 | 1993 | OperatedDouglas C-118[176] |
| Allegheny Air Cargo | Pennsylvania | | | | | Pittsburgh | 1947 | 1947 | OperatedDouglas DC-3[177] |
| Allegheny Airlines | Pennsylvania |  | AL | ALO | ALLEGHENY | Pittsburgh | 1959 | 1979 | Renamed toUS Airways |
| Allegheny Commuter | Pennsylvania |  | | | | DuBois | 1969 | | Renamed toCrown Airways |
| Allen Air Commuter | Kansas | | | | | Topeka | 1967 | 1975 | Founded asAllen Aviation. Acquired byCapitol Airlines[178] |
| Alliance Airlines | Illinois | | | ALZ | ALLIANCE AIR | Chicago O'Hare | 1984 | 1988 | Acquired byGreat Lakes Airlines[179] |
| Allied Air Freight | Florida | | | | | Miami-Opa Locka | 1996 | 2001 | OperatedDouglas C-47[180] |
| Aloha Airlines | Hawaii |  | AQ | AAH | ALOHA | Honolulu | 1946 | 2008 | Founded asTrans-Pacific Airlines. Cargo operations still active underAloha Air Cargo. |
| Aloha IslandAir | Hawaii |  | | | | Honolulu | 1987 | 1992 | Founded asPrinceville Airways. Acquired byIsland Air[181] |
| Aloha Pacific | Hawaii |  | | | | Honolulu | 1984 | 1985 | [182] |
| Alpha Air | California |  | 7V | ALH | ALPHA AIR | Los Angeles | 1976 | 1995 | [183] |
| Alpine Airbus | California | | | | | Los Angeles | 1973 | 1973 | [184] |
| Alpine Aviation | Nevada | | | | | Nevada County Air Park | 2005 | 2005 | [185] |
| Alpine Aviation Corporation | Illinois | | | | | Chicago Rockford | 1980 | 1981 | [186] |
| Altair Airlines | Pennsylvania |  | AK | AAR | ALTAIR | Philadelphia | 1967 | 1982 | |
| Altus Airlines | Oklahoma | | 2U | AXS | ALTUS | Altus/Quartz Mountain | 1985 | 1987 | [187] |
| Alyeska Air Service | Alaska | | | ALY | ALYESKA | Anchorage | 1982 | 1989 | [188] |
| Ambassadair | Indiana |  | | | | Indianapolis | 1974 | 1981 | OperatedBoeing 720,Boeing 727[189] |
| Ambassador Airlines | Nevada | | | | | Las Vegas McCarran | 1963 | 1968 | Subsidiary ofAmerican Trans Air. OperatedBeech 18,Aero Commander 500[190] |
| Amelia Airways | Florida | | | | | Fort Lauderdale Executive | 1993 | 2000 | On-demand service OperatedPiper Navajo Chieftain[191] |
| America West Airlines | Arizona |  | HP | AWE | CACTUS | Phoenix Sky Harbor | 1981 | 2007 | Commenced operations in 1983. Merged withUS Airways, then merged withAmerican Airlines |
| America West Express | Nevada |  | RP | CHQ | AIR SHUTTLE CHATAUQUA | Las Vegas McCarran | 1985 | 2007 | |
| AmericAir | Oklahoma | | DE | AAR | PATRIOT | Washington Dulles | 1983 | 1985 | [192] |
| American Air Taxi | Florida | | | | | Key West | 1960 | 1974 | RenamedAir Sunshine (1974). OperatedBeech 99,Piper Aztec,de Havilland Heron[193] |
| American Air Transport and Flight School | Florida |  | | | | Miami | 1948 | 1952 | Irregular air carrier shut by theCAB in 1952 for flying scheduled service. |
| American Central Airlines | Iowa | | JR | AAR | | Dubuque | 1980 | 1984 | [194] |
| American Export Airlines | New York |  | | | | New York-LaGuardia | 1937 | 1945 | Renamed toAmerican Overseas Airlines[195] |
| American Flyers Airline | Oklahoma |  | | | | Ardmore | 1949 | 1971 | Taken over byUniversal Airlines |
| American International Airways | Florida | | | | | Key West | 1926 | 1927 | Seaplane service toHavana[196] |
| American International Airways | New York | | | | | New York-LaGuardia | 1947 | 1949 | OperatedBoeing 314,DC-4[197] |
| American International Airways | Pennsylvania |  | CB | CKS | | Philadelphia | 1967 | 2000 | Merged withKitty Hawk International and rebranded asKalitta Air |
| American International Airways | New Jersey |  | | | | Atlantic City | 1981 | 1984 | Established asCommercial Airlines in 1980. OperatedMD-80,DC-9[198] |
| American Overseas Airlines | New York |  | | | | New York-LaGuardia | 1937 | 1950 | Founded asAmerican Export Airlines. Merged withPan American Airways |
| American Overseas | |  | | | | | 1980s | 1980s | |
| American Railway Express | District of Columbia | | | | | Washington, D.C. | 1918 | 1929 | Freight service RenamedRailway Express Agency Operated aHandley Page converted bomber[199] |
| American Trans-Oceanic Company | New York |  | | | | Port Washington | 1916 | 1928 | |
| AmericanConnection | Illinois |  | AX | | | Chicago O'Hare | 2001 | 2014 | |
| AMI Jet Charter | California | | | | | San Francisco | 1998 | 2007 | [200] |
| Amistad Airline | Texas | | | | | Del Rio | 1966 | 1980 | [201] |
| Anchorage Air Transport | Alaska | | | | | Anchorage | 1927 | 1928 | [202] |
| Anchorage Airways | Alaska | | | | | Anchorage | 1981 | 1982 | Established asAir Logistics[203] |
| Angier Flying Service | North Carolina | | | | | Piedmont Triad | 1975 | 1975 | [204] |
| Antelope Airlines | Wyoming | | | | | Gillette–Campbell | 1974 | 1975 | [205] |
| Apache Airlines | Arizona |  | | | | Phoenix Sky Harbor | 1957 | 1970 | [206] |
| Apex Air Cargo | | | | APX | PARCEL EXPRESS | Honolulu | 1987 | 1989 | [207] |
| Apollo Airways | California |  | | SNC | SONIC | Santa Barbara | 1969 | 1982 | Renamed toPacific Coast Airlines[208] |
| Appalachian Airlines | Tennessee | | DI | | | Tri-Cities | 1977 | 1980 | |
| Arctic Circle Air | Alaska | | 5F | CIR | AIR ARCTIC | Fairbanks | 1973 | 2009 | Acquired byEra Alaska |
| Arctic Frontier Airways | Washington | | | | | Seattle–Tacoma | 1948 | 1948 | [209] |
| Arctic Guide Air Taxi | Alaska | | | | | Barrow | 1974 | 1985 | Charter carrier[210] |
| Arctic Pacific Airlines | Washington | | | | | Seattle-Tacoma | 1947 | 1970 | Charter carrier[211] |
| Arctic Transportation Services | Alaska | | 7S | RCT | | Anchorage | 1950 | 2010 | Rebranded asRyan Air Services |
| Argonaut Airways | Florida |  | | | | Miami | 1946 | 1962 | Supplemental air carrier cargo line. Voluntarily gave up operating authority in 1962 |
| Argosy Air Lines | Florida | | VJ | ARY | GOSEY | Fort Lauderdale Executive | 1971 | 1978 | [212] |
| Aries Air Cargo | California | | | | | Los Angeles | 1973 | 1973 | Cargo carrier[213] |
| Arista International Airlines | New York |  | RY | | | New York Kennedy | 1982 | 1984 | Established asTourlite International Airlines in 1980. |
| Arizona Air | Arizona | | | AAE | ARIZONA | Scottsdale | 1992 | 1995 | Scenic flights and charter[214] |
| Arizona Airways | Arizona | | | AAE | ARIZONA | Phoenix Sky Harbor | 1946 | 1950 | Merged withSummit Airways andMonarch Air Lines to formFrontier Airlines (1950–1986) |
| Arizona Airways (1993–1996) | Arizona |  | VZ | AZY | ARIZAIR | Tucson | 1993 | 1996 | ToArizona Airways Express |
| Arizona Airways Express | Arizona | | | | | Tucson | 1995 | 1996 | Merged intoGreat Lakes Airlines[215] |
| Arizona Express | Arizona | | K7 | TMP | TEMPE | Phoenix Sky Harbor | 2001 | 2005 | [216] |
| Arizona Helicopters | Arizona | | | | | Chandler | 1970s | 1970s | Operated inLaos during the 1970s |
| Arizona Pacific Airlines | Arizona | | | AZP | ARIZONA PACIFIC | Flagstaff | 1981 | 1982 | Began asOmni Airlines[217] |
| Arkansas Traveler Airline | Arkansas | | | HOG | HOG-AIR | | 1984 | 1984 | [218] |
| Armstrong Air Service | Alaska | | | | | Dillingham | 1985 | 1989 | [219] |
| Arnold Air Service | Alaska | | | | | | 1946 | 1946 | OperatedDouglas DC-3[220] |
| Aroostook Airways | Maine | | | | | Presque Isle | 1969 | 1972 | |
| Arrow Air | Florida |  | JW | APW | BIG A | Miami | 1981 | 2010 | 1980s follow-on from earlier 1940s/50sArrow Airways |
| Arrow Airways | California | | | | | Torrance Hollywood-Burbank Airport | 1946 | 1951 | Irregular air carrier shut down byCivil Aeronautics Board for illegal scheduled service |
| Arrowhead International Airlines | Minnesota | | | | | Duluth | 1929 | 1930 | Merged withCanadian-American Airlines OperatedLockheed Vega[221] |
| ASA (Alaska Southcoast Airways) | Alaska | | | | | | 1974 | 1974 | [222] |
| ASA International Airlines | Florida | | JI | JI | | | 1947 | 1965 | Trade name forAerovias Sud Americana |
| ASAP (All Seasons Air Pacific) | California | | | | ALL | Long Beach | 1981 | 1983 | [223] |
| Asheville Flying Service | North Carolina | | | | | Asheville | 1982 | 1983 | [224] |
| Aspen Airways | Colorado |  | AP | ASP | ASPEN AIR | Denver Stapleton | 1952 | 1990 | Merged intoAir Wisconsin |
| Aspen Airways Air Taxi | Colorado | | | | | Aspen | 1953 | 1955 | RenamedAspen Airways[225] |
| Aspen Mountain Air | Colorado |  | AD | | | Denver | 1996 | 1998 | SeeLone Star Airlines |
| Associated Air Transport | Florida | Click reference for external photo[226] | | | | Miami | 1949 | 1962 | OperatedSikorsky VS-44, DC-3,C-46,L-749[227] |
| Associated Airways | | | | | | Burbank | 1949 | 1951 | PreviouslyAirplane Charter by Mercer.Irregular air carrier shut byCAB in 1951 for scheduled svc |
| Astar Air Cargo | Florida |  | ER | DHL | DAHL | Cincinnati/Northern Kentucky | 1969 | 2012 | |
| Astec Air East | New York | | | AAE | AIR EAST | Canandaigua | 1974 | 1982 | [228] |
| Astro Airways | Arkansas | | JW | AST | ASTRO-AIR | Pine Bluff | 1969 | 1995 | [229] |
| ATA Airlines | Indiana |  | TZ | AMT | AMTRAN | Chicago Midway | 1973 | 2008 | Founded asAmbassadair |
| ATA Connection | Illinois | | | | | 1983 | |
| Atlanta Express | Georgia |  | FX | | AYTEX | Atlanta | 1982 | 1987 | Merged intoSunbird Airlines[230] |
| Atlanta Helicopter Airways | Georgia | | | | CITRUS | Atlanta | 1960 | n/a | [231] |
| Atlanta Skylarks | Georgia | | | SLK | SKYLARK | Atlanta | 1966 | 1986 | RenamedIndependent Air in 1986[232] |
| Atlantic & Pacific Airlines | Texas | | | | | | 1947 | 1947 | OperatedDouglas DC-3[233] |
| Atlantic Air | Massachusetts | | | GAA | ATLANTIC AIR | Boston | 1981 | 1984 | Renamed toBEX Business Express[234] |
| Atlantic and Gulf Coast Airlines | South Carolina | | | | | Savannah-Hilton Head | 1937 | 1937 | [235] |
| Atlantic Central Airlines | Maine | | | | | Bangor | 1975 | 1976 | OperatedBeech 18[236] |
| Atlantic City Airlines | New Jersey | | | | | Atlantic City | 1965 | 1977 | RenamedSouthern Jersey Airways OperatedTwin Otters[237] |
| Atlantic Coast Airlines | Virginia |  | | | | Washington Dulles | 1989 | 2006 | Merged intoIndependence Air |
| Atlantic Coast Jet | | | | | | | 1989 | 2003 | OperatedDornier 328JET[238] |
| Atlantic Gulf Airlines | Florida |  | ZY | AGF | ATLANTIC GULF | Tampa | 1983 | 1986 | |
| Atlantic North Airlines | New Hampshire | | 8M | SDD | SKY DANCE | Laconia | 1993 | 1993 | Merged intoOcean Air Tradeways |
| Atlantic Seaboard Airlines | New Jersey | | | | | Bader Field | 1960 | 1961 | [239] |
| Atlantic Southeast Airlines | Georgia |  | EV | ASQ | ACEY | Detroit | 1979 | 2011 | Merged intoExpressJet |
| Atlantis Airlines | North Carolina | | SG | AAO | ATLANTIS AIR | Charlotte | 1979 | 1991 | Branded asEastern Atlantis Express |
| ATO America Trans-Oceanic Company | Florida New York | | | | | Miami Long Island City | 1920 | 1921 | Acquired byCurtiss-Metropolitan Airplane Company[240] |
| Atorie Air | Texas | | | PAV | ATORIE-AIR | El Paso | 1983 | 1986 | Founded asPronto Aviation Services OperatedDouglas DC-3[241] |
| ATX Air Services | Texas | | | | | Fort Worth Alliance | 2013 | 2016 | Rebranded toHillwood Airways[242][243] |
| Austin Express | Texas | | 7V | TXX | COWBOY | Austin-Bergstrom | 1997 | 2000 | |
| Austral Aviation | Wisconsin | | AL | SYX | | Milwaukee Mitchell | 1994 | 2008 | [244] |
| Av Atlantic | Florida |  | G6 | KYC | DOLPHIN | Fort Lauderdale–Hollywood | 1991 | 1996 | |
| AVAir | North Carolina | | | | | Raleigh Durham | 1986 | 1989 | FormerAmerican Eagle operator[245] |
| Avalon Air Transport | California | | | | | Long Beach | 1953 | 1963 | |
| Avery Aviation | Wyoming | | | | | Greybull | 1961 | 1969 | OperatedConsolidated Privateer,Cessna 180[246] |
| Aviation Enterprises | Texas | | | | | | 1940 | 1947 | Renamed toTrans-Texas Airways[247] |
| Aviation Services Inc. | Kansas | | | | | Wichita | 1967 | 1969 | Founded byGary M. Adamson. Renamed toAir Midwest[248] |
| Aviex Jet | Texas | | | | | Houston | 1979 | 1999 | OperatedSuper King Air 200,Learjet 25,Aero Commander 1121 Jet Commander[249] |
| Avolar | Nevada | | | VLX | AVOLAR | Las Vegas McCarran | 2001 | 2002 | [250] |
| Aztec Air | Florida | | | | | Panama City | 1967 | 1996 | [251] |
| Aztec Air | California | | | | | Long Beach | 1989 | 1989 | Charter carrier[252] |
| Aztec Airlines | Texas | | | | | El Paso | 1966 | 1967 | [253] |
| B |
| B & C Aviation | Tennessee | | | | | Nashville | 1973 | 1999 | OperatedLearjet 24,Learjet 25[254] |
| B Airways | Florida | | | | | Miami | 1989 | 1990 | OperatedDouglas DC-3[255] |
| B Airways Air Cargo | Florida | | | | | Miami | 1997 | 1999 | [256] |
| B.A.S Airlines | Ohio | | | | | Youngstown–Warren | 1981 | 1988 | Founded asSkyline Motors Aviation[257] |
| Bahamas Express | Florida | | | | | Miami | 1987 | 1988 | Established asPacific Inter Air. RenamedMajestic Air[258] |
| Baja Cortez Airlines | California | | XT | BCA | | Los Angeles | 1977 | 1983 | OperatedBN Islander,Riley Turbo Skyliner[259] |
| Bakersfield Aviation Services | California | | | | | Meadows Field | 1973 | 1975 | OperatedBeech E18S,Beech Bonanza[260] |
| Ball Brothers | Alaska | | | | | Anchorage | 1977 | 1980 | Fresh fish carrier[261] |
| Baltia Air Lines | New York | | | | | New York Kennedy | 1989 | 2018 | Renamed toUSGlobal Airways[262] |
| Baltimore Air Charter | Maryland | | | | | Baltimore–Washington | 2004 | 2006 | [263] |
| Baltimore Airways | Maryland | | | | | Logan Field | 1929 | 1930 | [264] |
| Baltimore Airways Company | Maryland | | | | | Park Heights, Baltimore | 1929 | 1929 | [265] |
| Baltimore Helicopter Services | Maryland | | | | | Baltimore–Washington | 2004 | 2015 | RenamedGrandView Aviation[266] |
| Bar Harbor Airlines | Maine |  | QO | AJC | BAR HARBOR | Bangor | 1950 | 1971 | Merged intoContinental Express |
| Barnes and Gorst Air Mail | Washington | | | | | Seattle Lake Union Seaplane Base | 1927 | 1927 | [267] |
| Barnhill & McGee Airways | Alaska | | | | | Anchorage | 1931 | 1932 | Forerunner ofMcGee Airways |
| Barr Air Transport | Alaska | | | | | | 1935 | 1938 | Founded by Frank Barr[268] |
| BAX Global | Florida |  | 8W | | | Miami | 1997 | 2011 | Founded asBurlington Northern Airfreight thenBurlington Air Express[269] |
| Bay Valley Air Service | California |  | | | | San Francisco | 1947 | | |
| Bee Line | Connecticut | | | | | | 1923 | 1925 | Renamed toColonial Air Transport[270] |
| Beeson Aviation | Kansas | | | | | Concordia | 1965 | 1968 | Absorbed byTrans-Mo Airlines[271] |
| Bellair | Alaska | | 7G | | | Anchorage | 1980 | 2004 | OperatedVolpar Turboliner[272] |
| Bellingham-Seattle Airways | Washington | | | | | Bellingham | 1964 | 1969 | Merged intoPuget Sound Airlines[273] |
| Bennett-Rodebaugh Company | Alaska | | | | | | 1927 | 1927 | [274] |
| Best Airlines | Kentucky |  | IW | BST | BESTWAY | Cincinnati/Northern Kentucky | 1982 | 1986 | |
| Biegert Aviation | Arizona |  | | | | Chandler | 1984 | 1993 | Cargo carrier OperatedDouglas C-54[275] |
| Big Sky Airlines | Montana |  | GQ | BSY | BIG SKY | Billings Logan | 1978 | 2008 | |
| Bimini Island Air | Florida | | | BMY | BIMINI | Fort Lauderdale–Hollywood | 1993 | 2011 | AOC removed by theFAA in 2011 |
| BizAir Shuttle | Ohio | | UE | | | DuPage | 2015 | 2015 | Established asBizCharters OperatedDornier 328,ERJ-135[276] |
| Blackhawk Airways | Wisconsin | | BB | BAK | BLACKHAWK | Southern Wisconsin | 1970 | 1996 | OperatedBeech E18S[277] |
| Blatz Airlines | California | | | | | Burbank | 1947 | 1962 | OperatedDC-3,DC-4[278] |
| Blatz Airlines | Nevada | | | | | | 1963 | 1963 | RenamedNevada Airlines. FormedHawthorne-Nevada Airlines in 1964[279] |
| Blue Dog | Washington | | | | | Omak | 1968 | 1971 | Commuter services OperatedAero Commander 560,Cessna 182[280] |
| Blue Line Air Express | Wisconsin | | 4U | | | Medford | 1982 | 1982 | [281] |
| Blue Moon Aviation | Minnesota | | | | | Minneapolis–Saint Paul | 2003 | 2005 | [282] |
| Bluebell Aviation | | | | | | | 1969 | 1973 | Renamed toWrangler Aviation[283] |
| Bluegrass Airlines | Kentucky |  | | | | Bowling Green | 1944 | 1946 | |
| Bo-S-Aire | | | | BAA | BOWMAN AIR | | 1979 | 1989 | [284] |
| Bob Harris Flying Service | Alaska | | | | | Bethel | 1956 | 1975 | RenamedYute Air Alaska[285] |
| Boeing Air Transport | Washington |  | | | | Boeing Field | 1927 | 1930 | ToUnited Airlines |
| Boise Aviation | Idaho | | | | | Boise | 1967 | 1971 | Third-level services[286] |
| Bonanza Air Lines | Nevada |  | BL | | BONANZA | North Las Vegas | 1945 | 1968 | Merged withPacific Air Lines andWest Coast Airlines to formAir West which was then renamedHughes Airwest |
| Bonanza Airlines | Arizona | | | BON | BONAIR | Phoenix Sky Harbor | 1978 | 1978 | Established asMountain West Airlines[287] |
| Borrego Springs Airline | California | | | | | Borrego Valley | 1968 | 1968 | RenamedSun Aire Lines[288] |
| Boone County Airlines | Kentucky | | | | | Cincinnati/Northern Kentucky | 1946 | 1950 | |
| Boston Airport Corporation | Massachusetts | | | | | East Boston | 1925 | 1926 | OperatedTravel Air[289] |
| Boston Maine-Central Vermont Airways | Massachusetts | | | | | Boston | 1933 | 1940 | Formed by the merger ofBoston Maine Airways andCentral Vermont Airways[290] |
| Boston-Maine Airways | Massachusetts | | | | | Boston | 1931 | 1933 | [291] |
| Boston-Maine Airways | New Hampshire |  | E9 | CXS | CLIPPER CONNECTION | Hanscom Field | 1999 | 2008 | |
| Bowen Air Lines | Texas | | | | | Dallas/Fort Worth | 1930 | 1935 | Acquired byBraniff Airways[292] |
| Braniff International Airways | Texas |  | BN | BNF | BRANIFF | Dallas/Fort Worth | 1930 | 1982 | Went bankrupt, some assets sold toBraniff Inc. |
| Braniff (1983–1990) | Texas |  | BN | BNF | BRANIFF | Dallas/Fort Worth | 1983 | 1990 | Officially Braniff Inc. aka Braniff II; went bankrupt, assets sold to Braniff International Airlines, Inc. |
| Braniff (1991–1992) | Texas | | BE | | | Dallas/Fort Worth | 1991 | 1992 | Officially Braniff International Airlines, Inc. aka Braniff III; went bankrupt |
| Branson Airlines | Florida | | E5 | BRN | BRANSON | Fort Lauderdale Executive | 1992 | 1994 | Founded asDash Airlines renamedEclipse Airlines[293] |
| Bremerton Air Taxi | Washington | | | | | Bremerton | 1964 | 1969 | [294] |
| Britt Airways | Indiana |  | RU | BTA | BRIT-AIR | Terre Haute | 1956 | 1985 | Founded asVercoa Air Service. Merged intoExpressJet |
| Bristol Bay Air Service | Alaska | | | | | Bethel | 1930 | 1943 | Acquired byRay Petersen Flying Service[295] |
| Brockway Air | Vermont | | SS | CVA | BROCKWAY | Burlington | 1984 | 1989 | Merged intoMetro Airlines |
| Brooks Air Transport | Alaska | | | | | Fairbanks | 1986 | 1986 | Renamed toBrools Fuel[296] |
| Brooks Fuel | Alaska | | | | | Fairbanks | 1986 | 2008 | Founded asBrools Air Transport[297] |
| Brower Airlines | Iowa | | UD | | | Fort Madison | 1968 | 1980 | Founded asBrower Airways[298] |
| Buckeye Air Service | Ohio | | | | | Cleveland Hopkins | 1967 | 1971 | [299] |
| Budyer Air | Wyoming | | | | | Evanston | 1981 | 1982 | [300] |
| Buffalo Airways | Texas |  | BV | BVA | | Waco | 1982 | 1996 | OperatedBoeing 707,Canadair CL-44,Douglas DC-8[301] |
| Buker Airlines | Vermont | | | | | Hartness | 1966 | 1968 | Renamed toTrans East Airlines[302] |
| Burdett Air Lines | California | | | | | Los Angeles | 1919 | 1927 | Jack Frye merged withAero Corporation andStandard Air Lines[303] |
| Burlington Air Express | California |  | 8W | | | Miami | 1986 | 1997 | Merged intoBAX Global |
| Burlington Airways | | | | BUR | BURLINGTON | | 1979 | 1982 | [304] |
| Burlington Northern Airfreight | Florida | | | | | | 1972 | 1985 | Renamed toBurlington Air Express[305] |
| Business Express Airlines | Massachusetts |  | HQ | GAA | BIZEX | Boston | 1982 | 2000 | Merged intoAmerican Eagle Airlines |
| Byerly Airlines | Illinois | | | | | Jacksonville | 1955 | 1961 | [306] |
| C |
| C & M Airlines | California | | | REM | REM | Inyokern | 1979 | 1985 | Renamed toIndian Wells Airlines[307] |
| C & R Connair | Connecticut | | | | | | 1967 | 1971 | Scheduled commuter services[308] |
| C-Air | California | | | | | Los Angeles | 1964 | 1969 | [309] |
| Cable Commuter Airlines | California | | | | | Cable | 1967 | 1969 | Established asCable Air Taxi. Acquired byAero Commuter[310] |
| Cal Aero Airways | California | | | | | Van Nuys | 1969 | 1970 | [311] |
| Cal Jet Elite Air | California |  | | | | McClellan–Palomar | 2015 | 2018 | [312] |
| Cal Sierra Airlines | California |  | | | | San Diego | 1980 | 1981 | |
| Calasia Air Transport | California | | | | | Oakland | 1947 | 1950 | Changed name toOverseas National Airways in 1950 |
| California Air Charter | California | | | | | Lockheed Air Terminal | 1946 | 1959 | Originally Kesterson, founded in Knoxville, TN. |
| California Air Charter | California | | | CAC | CALAIR | Hollywood Burbank | 1968 | 1971 | Renamed toAmeriflight[313] |
| California Air Commuter | California | | | CLM | CALCOM | Oakland | 1975 | 1979 | Owned byMartin Aviation[314] |
| California Air Freight | California |  | | | | | 1959 | 1959 | [315] |
| California Air Shuttle | California |  | | | | Oxnard | 1990 | 1990 | OperatedSwearingen Metro[316] |
| California Airways | California | | | | | Santa Monica | 1979 | 1986 | [317] |
| California Arrow Airlines | California | | | | | Hollywood Burbank | 1949 | 1949 | Intrastate airline, subsidiary ofArrow Airways, suffereddevastating crash that killed owner's wife and child |
| California Central Airlines | California |  | | | | Hollywood Burbank | 1949 | 1955 | Intrastate airline slightly precedingPacific Southwest Airlines. Assets bought in bankruptcy bySouthwest Airways andAllegheny Airlines |
| California Eastern Airways | California |  | | | | Oakland | 1946 | 1960 | Part 45 carrier that became asupplemental in 1959, only to transfer its certificate to President Airlines in 1960. |
| California Hawaiian Airlines | California |  | | | | | 1952 | 1962 | Adba ofAirline Transport Carriers |
| California Pacific Airlines | California | | | | | Burbank | 1950 | 1950 | Short-lived Californiaintrastate airline. |
| California Pacific (CalPac) | California | | | | | Los Angeles | 1993 | 2005 | ToMesa Airlines |
| California Pacific Airlines | California |  | 4A | DYN | AERODYNAMICS | McClellan–Palomar | 2018 | 2019 | |
| California Seaboard Airlines | Arizona | | | SSB | CAL SEABOARD | Laughlin/Bullhead | 1983 | 1986 | [318] |
| California Time Airlines | California | | | | | Hollywood Burbank | 1963 | 1963 | [319] |
| Cal-State Airlines | California | | | | | Los Angeles | 1968 | 1970 | [320] |
| Cam Air International | | | OX | FLM | BOXHAULER | | 1983 | 1986 | Established asFleming International Airways. Renamed toSpirit of America Airlines[321] |
| Canadian Colonial Airways | New York | | | | | New York Flushing | 1928 | 1942 | Operated flight toMontreal. Renamed toColonial Airlines[322] |
| Canadian-American Airlines | Minnesota | | | | | Minneapolis | 1929 | 1930 | Merged withArrowhead International Airlines OperatedLockheed Vega,Travel Air 6000[323] |
| Cape & Islands Air Freight | Massachusetts | | | | | Nantucket | ? | 2015 | Division ofIsland Airlines |
| Cape & Islands Airline | Massachusetts | | | | | Hyannis Barnstable | 1951 | 1970 | ToAir New England OperatedBeech 18,Twin Otter,Piper Navajo,Piper Aztec[324] |
| Cape Smythe Air | Alaska | | 6C | CMY | CAPE SMYTHE AIR | Barrow | 1975 | 2005 | ToFrontier Flying Service |
| Capital Airlines | Washington, D.C. |  | CA | CAP | CAPITOL | Washington National | 1948 | 1961 | Merged intoUnited Airlines |
| Capital Cargo International Airlines | Florida |  | PT | CCI | CAPPY | Miami | 1996 | 2013 | Merged intoATI Air Transport International |
| Capitol Airlines | Kansas | | | | | Manhattan | 1965 | 1989 | Acquired byAllen Aviation. Operated asBraniff Express[325] |
| Capitol Air | Tennessee |  | CL | CL | CAPITOL | Smyrna, Tennessee | 1982 | 1984 | Low cost carrier |
| Capitol Air Express | Virginia |  | C6 | CEX | CAPITOL EXPRESS | | 1993 | 1996 | Charter carrier founded byJohn Catsimatidis |
| Capitol Airways | Tennessee |  | CL | CL | CAPITOL | Wilmington, Delaware | 1946 | 1967 | Supplemental air carrier |
| Capitol International Airways | Tennessee |  | CL | CL | CAPITOL | Smyrna, Tennessee | 1967 | 1982 | Supplemental air carrier |
| Cardinal Airlines | Virginia | | NN | CDA | | Lynchburg | 1968 | 1976 | Renamed toAir Virginia, OperatedBN Islander,Beech 99[326] |
| Cargo 360 | Washington | | GG | GGC | LONGHAUL | Seattle–Tacoma | 2005 | 2008 | ToSouthern Air |
| Caribair | Puerto Rico |  | | | | San Juan | 1939 | 1973 | Merged intoEastern Airlines |
| Caribbean American Lines | |  | | | | | | 1956 | Irregular air carrier shut byCAB in 1956 for flying scheduled service |
| Caribbean Express | Florida | | | | | Miami | 1983 | 1988 | OperatedEmbraer Bandeirante,Cessna 402B[327] |
| Caribbean Sun | Florida |  | | | | Miami | 2002 | 2007 | ToWorld Atlantic Airlines |
| Carnival Air Lines | Florida |  | KW | CAA | CARNIVAL AIR | Fort Lauderdale–Hollywood | 1988 | 1998 | Merged intoPan Am (1996), toBoston-Maine Airways |
| Cascade Airways | Washington |  | CZ | CCD | CASCADE | Seattle-Tacoma | 1969 | 1986 | |
| Casino Express Airlines | Nevada |  | XP | CXP | CASINO EXPRESS | Las Vegas McCarran | 1987 | 2005 | Rebranded asXtra Airways |
| Catalina Air Lines | California | | | CAI | CATALINA | Long Beach | 1963 | 1967 | Avalon Air Transport (1953), then Catalina Air Lines (1963), acquired byGolden West Airlines |
| Catalina Air Transport | California | | | | | Santa Catalina Island | 1931 | 1942 | Founded asWilmington-Catalina Airline in 1931. Renamed to Catalina Air Transport in 1941. Contracted with United Air Lines to operate to Catalina 1946-1954. |
| Catalina Channel Airlines | California | | | | | Pebble Beach | 1959 | 1966 | Founded by Bob Hanley. Used seaplane[328] |
| Catlin Aviation | Oklahoma | | | CLN | CATLIN | Durant Eaker Field | 1969 | 1969 | Commuter services[329] |
| Catskill Airways | New York | | KF | CSK | CATSKILL | Utica | 1966 | 1989 | Merged intoMohawk Airlines[330] |
| CCAir | North Carolina | | ED | CDL | CAROLINA | Charlotte Douglas | 1987 | 2002 | [331] |
| Centennial Airlines | Wyoming | | BE | CNL | WYO-AIR | Laramie | 1981 | 1987 | Merged intoMesa Airlines |
| Cen-Tex Airlines | Texas | | | CTX | CEN-TEX | | 1981 | 1983 | Commuter services[332] |
| Central Airlines (1934) | Virginia | | | | | Washington National | 1934 | 1936 | Merged intoPennsylvania Airlines. OperatedStinson Model A[333] |
| Central Airlines | Texas |  | | | | Dallas Love Field | 1949 | 1967 | Merged intoFrontier Airlines (1950–1986) |
| Central American Airways | Kentucky |  | | | | Louisville | 1946 1963 | 1948 1973 | Irregular air carrier in 1940s.Uncertificated carrier from 1963. BecameCentral American International |
| Central American International | Kentucky | | | | | Louisville | 1973 | 1982 | Uncertificated carrier, follow on fromCentral American Airways. BecameTrans International Airlines (1985–1989) |
| Central Iowa Airlines | Iowa | | | | | Davenport | 1973 | 1973 | OperatedDC-3[334] |
| Central State Airlines | Ohio | | | | | Cleveland Shea Field | 1989 | 1990 | OperatedBAe Jetstream[335] |
| Centurion Air Cargo | Florida |  | WE | CWC | CHALLENGE CARGO | Miami | 1985 | 2018 | Formerly known asChallenge Air Cargo |
| Century 2000 | | | | | | | 1971 | 1973 | [336] |
| Century Airlines | Michigan | | | | | Oakland County | 1973 | 1996 | Established asS.S. Airways[337] |
| Century Airlines | California | | | | | Arcata–Eureka | 1977 | 1981 | Established asSix Rivers Air Service[338] |
| Century Pacific Air Lines | California | | | | | Los Angeles | 1931 | 1932 | ToAmerican Airways[339] |
| CF Airfreight | |  | CK[340] | | | Indianapolis | 1985 | 1989 | Airfreight forwarder andvirtual airline. A predecessor toEmery Worldwide Airlines |
| CHA California Hawaiian | | | | | | | 1946 | 1962 | see California Hawaiian Airlines. |
| Chalk’s Flying Service | Florida | | | | | Miami | 1919 | 1936 | Renamed toChalk's International Airlines OperatedStinson Voyager with floats[341] |
| Chalk's International Airlines | Florida |  | BK | CHK | CHALKS | Miami Seaplane Base | 1996 | 1996 | Established asRed Arrow Flying Service in 1917 OperatedDHC-7 Dash 7,Grumman Albatross,Grumman Mallard[342] |
| Chalk’s Ocean Airways | Florida | | OP | CHK | | Miami | 1999 | 2005 | Renamed toChalk's International Airlines OperatedBeech 1900D,Grumman G-73 Mallard,Saab 340A[343] |
| Challenge Air Cargo | Florida |  | WE | CWC | CHALLENGE CARGO | Miami | 1985 | 2001 | Charter airline[344] |
| Challenge Air International | Florida | | VV | OFF | CHALLENGE AIR | Miami | 1984 | 1987 | FormerChallenge International Airlines[345] |
| Challenger Airlines (1946) | Utah | | | | | Salt Lake City | 1946 | 1946 | Utahintrastate airline, same parent company asChallenger Airlines |
| Challenger Airlines | Wyoming | | | | | Laramie, Wyoming,Salt Lake City,Denver | 1947 | 1950 | Merged withMonarch Air Lines andArizona Airways to formFrontier Airlines (1950–1986) |
| Champion Air | Minnesota |  | MG | CCP | CHAMPION AIR | Minneapolis–Saint Paul | 1995 | 2008 | Formed fromMGM Grand Air |
| Channel Air Lift | Hawaii | | | | | Honolulu | 1967 | 1969 | Went bankrupt[346] |
| Chapman Air | | | | EXR | EXPRESS COURIER | | 1978 | 1985 | Renamed toFlight Express, Inc.[347] |
| Chapparal Airlines | Texas | | FC | CPL | CHAPPARAL | Abilene | 1975 | 1990 | Merged intoMetro Airlines[348] |
| Charter Air Transport | Ohio | | VC | | | Cleveland Hopkins | 1997 | 2015 | Renamed toVia Airlines[349] |
| Charter Airlines | Florida | | | | | Gainesville | 1977 | 1979 | Established asCharterair Commuter Airline. Merged intoMackey International Airlines. OperatedConvair 580[350] |
| Charter One Airlines | Michigan | | | | | Detroit | 1980 | 1992 | Renamed toSpirit Airlines[351] |
| Charterair Commuter Airlines | Florida | | HO | | CITRUS | Gainesville | 1977 | 1979 | Renamed toCharter Air Center[352] |
| Chatham Airlines | | | | | | | 1964 | 1970 | Established asLemco Flying Services[353] |
| Chautauqua Airlines | Indiana |  | RP | CHQ | CHAUTAUQUA | Chicago O'Hare | 1973 | 2014 | ToShuttle America |
| Cherokee Airlines | |  | | | | | | | |
| Cherokee Airtaxi | Florida | | | | CITRUS | Athens Ben Epps | 1968 | 1971 | [354] |
| Chesapeake Airways | Maryland | | | | | Salisbury–Ocean City | 1946 | 1965 | Merged intoMetro Airlines[355] |
| Chicago Air | Illinois | | CH | CHGO | WILDONION | Chicago Midway | 1985 | 1986 | |
| Chicago Airways | Illinois | | | | | Chicago O'Hare | 1959 | 1961 | [356] |
| Chicago and Southern Air Lines | California |  | CS | CSA | | Peoria Downing | 1933 | 1953 | AsPacific Seaboard Air Lines, rebranded Chicago and Southern Air Lines (1935), merged withDelta Air Lines |
| Chicago Express Airlines | Illinois |  | C8 | WDY | WINDY CITY | Chicago Midway | 1993 | 2005 | |
| Chicago Helicopter Airways | Illinois |  | | | | Chicago O'Hare | 1954 | 1965 | Established asHelicopter Air Service |
| Chippewa Air Commuter | Michigan | | | CPW | CHIPPEWA-AIR | Manistee | 1977 | 1978 | [357] |
| Christiansen Air Service | Alaska | | | | | Anchorage | 1956 | 1956 | Acquired byCordova Airlines[358] |
| Christler Flying Services | New York | | | CHR | CHRISTLER | | 1970 | 1979 | Aerial spraying[359] |
| Christler-Avery Aviation | Wyoming | | | | | Greybull | 1951 | 1961 | Founded by Mel Christler and Morris Avery. OperatedB-18 Bolo,B-25 Mitchell,Northrop Delta[360] |
| Christman Air System | Pennsylvania | | SX | CAS | CHRISTMAN | Washington County | 1977 | 1991 | [361] |
| Cimarron Aire | Oklahoma | | | CMN | | McAlester | 2004 | 2006 | [362] |
| CitationAir | Connecticut | | | FIV | FIVE STAR | White Plains | 1998 | 2014 | [363] |
| CityLink Airlines | | | | HSR | HOOSIER | | 2001 | 2002 | [364] |
| Clearwater Flying Service | Idaho | | | CFS | | Orofino | 1977 | 1977 | Renamed toEmpire Airlines[365] |
| Cleveland-Detroit Air Line | Ohio | | | | | Cleveland Hopkins | 1927 | 1928 | [366] |
| Clifford Ball Airline | Pennsylvania | | | | | Bettis Field | 1927 | 1930 | Acquired byPennsylvania Airlines[367] |
| Clinton Aero | New York | | SS | CVA | CLINCO | Plattsburgh | 1971 | 1984 | Merged with Air North to formBrockway Air[368] |
| Club International | Washington |  | | | | Boeing Field | 1971 | 1975 | Air travel club that precededAeroamerica |
| Coastal Air | Georgia | | | | | Atlanta | 1975 | 1976 | Renamed toSoutheastern Commuter Airlines[369] |
| Coastal Air Freight | |  | | | | | | | OperatedFokker Super Universal |
| Coastal Air Lines | California | | | | | San Francisco | 1947 | 1962 | Began as Coastal Cargo.[370] Its certificate was taken over byZantop Air Transport |
| Coastal Airlines | Florida | | | | | St. Petersburg–Clearwater | 1968 | 1969 | [371] |
| Coastal Airlines | Rhode Island | | | | | Warwick | 1983 | 1989 | Began as National Air[372] |
| Coastal Airways | Washington | | PN | SQV | COASTAL AIR | Sequim Valley | 1982 | 1992 | Operated commuter service[373] |
| Coastal Plains Commuter | South Carolina | | | | | Hilton Head | 1978 | 1979 | [374] |
| Cochise Airlines | Arizona | | DP | | | Tucson | 1971 | 1982 | |
| Coker Airfreight | Texas | | | | | Dallas Fort Worth | 1969 | 1984 | Renamed toSkyfreighters. OperatedDC-3[375] |
| Coleman Air Transport | Illinois | | | | | Chicago Rockford | 1977 | 1980 | Founded by Philip Coleman.[376] |
| Colgan Air | Tennessee |  | 9L | CJC | COLGAN | Memphis | 1991 | 2012 | Established anFBO (1965), flights began 1970, sold toPresidential Airways (1986), restarted asNational Capital (1991), merged toPinnacle Airlines |
| Colonial Air Transport | New York | | | | | New York-LaGuardia | 1926 | 1930 | ToAmerican Airlines |
| Colonial Airlines | New Jersey |  | | | | New York-LaGuardia | 1928 | 1956 | Established asCanadian Colonial Airways, merged intoEastern Air Lines |
| Colonial Western Airways | New York | | | | | Albany | 1927 | 1929 | [377] |
| Colorado Airlines | Colorado | | | | | Crested Butte | 1977 | 1979 | Known asCrested Butte Air Service[378] |
| Columbia Air | Virginia | | | | | Washington National | 1981 | 1982 | [379] |
| Columbia Pacific Airlines | Washington | | 7C | | | Seattle-Tacoma | 1977 | 2002 | Established asExecuair in 1971[380] |
| Columbus Airlines | Florida | | | | | Fort Lauderdale–Hollywood | 1995 | 1996 | Established asLiberty Airways[381] |
| Colvin Air Charter | Georgia | | | | | Athens Ben Epps | 1999 | 2004 | [382] |
| Comair | Kentucky |  | OH | COM | COMAIR | Cincinnati/Northern Kentucky Orlando | 1977 | 2012 | Shut down by parent companyDelta Air Lines |
| Comair Jet Express | Kentucky | | | | | Cincinnati/Northern Kentucky | 2000 | 2001 | Delta Air Lines subsidiary[383] |
| Comanche Air | Washington | | | | | Ephrata | 2000 | 2001 | [384] |
| Combs Airways | Colorado | | | | | Denver | 1957 | 1984 | Began as Combs Freightair[385] |
| Command Air | North Dakota | | | | | | 1966 | 1969 | Merged intoRed Baron Airlines[386] |
| Command Airways | New York |  | DD | CMD | COMMAND | Hudson Valley | 1965 | 1988 | Renamed toFlagship Airlines |
| Commutair | Texas | | | | | Houston Bush | 1978 | 1980 | [387] |
| Commutaire International Airways | Florida | | | | | Miami | 1976 | 1977 | [388] |
| Commute Air | Washington | | | | | Spokane | 1967 | 1968 | [389] |
| Commuter Airlines | New York | | | | | Greater Binghamton | 1964 | 1984 | Established asBroome County Aviation |
| Commuter Airlines | Iowa | | | | | Sioux City | 1965 | 1971 | [390] |
| Compass Airlines | Minnesota |  | CP | CPZ | COMPASS | Minneapolis–Saint Paul | 2006 | 2020 | Shutdown due to travel disruptions caused by theCOVID-19 pandemic |
| Concord Airlines | New Jersey | | | | | | 1970 | 1971 | Third-level services[391] |
| Concord International Airlines | Florida | | | | | | 1980 | 1982 | Established asJet Freight Cargo[392] |
| Connectair | California | | | CCR | CONNECTAIR | Santa Barbara | 1980 | 1984 | [393] |
| Conner Air Lines | Florida |  | CS | | | Miami | 1948 | 1992 | OperatedC-46,DC-3,DC-6,DC-8 |
| Connie Kalitta Services | Michigan |  | | CKS | CONNIE | Cincinnati/Northern Kentucky | 1967 | 1984 | To American International Airways |
| Conquest Airlines | Texas | | 5C | CAC | CONQUEST | San Antonio | 1986 | 1997 | Acquired byAir L.A.[394] |
| Conquest Sun Airlines | Georgia |  | | | | Atlanta | 1993 | 1994 | Renamed toAirTran Airways[395] |
| Continental Air Services, Inc | Nevada |  | | | | Los Angeles | 1965 | | A subsidiary ofContinental Airlines |
| Continental Airlines | Texas |  | CO | COA | CONTINENTAL | Houston Bush | 1937 | 2010 | Merged intoUnited Airlines |
| Continental Charters | Florida |  | | | | Miami | 1945 | 1954 | Irregular air carrier bankrupt 1954, then bought for $20 after whichCAB refused to allow it to operate |
| Continental Connection | |  | | | | Cleveland Hopkins | | 2010 | IncludedCape Air,Colgan Air,CommutAir andSilver Airways, merged withUnited Express |
| Continental Express | Texas |  | CO | | Continental Express | Cleveland Hopkins | 1986 | 2010 | Operations absorbed byUnited Express on merger of parent companies |
| Continental Lite | |  | | | | Cleveland Hopkins | 1993 | 1995 | Airline within an airline, brand ofContinental Airlines |
| Continental Micronesia | Guam |  | CS | CMI | AIR MIKE | Guam | 1968 | 2010 | Founded as Air Micronesia. Subsidiary ofContinental Airlines until 2010; subsidiary of UCH until 2017 when it was officially merged into United Airlines |
| Continental Sky-Van | Texas |  | | | | Dallas | 1946 | 1946 | irregular air carrier |
| Continental West | Texas | | CO | | | Los Angeles | 1985 | 1986 | New division ofTexas Air Corporation[396] |
| Contract Air Cargo | Michigan |  | | TSU | TRANSAUTO | Oakland County | 1983 | 2005 | Rebranded asGulf and Caribbean Cargo |
| Cook Inlet Aviation | Alaska | | | CKA | COOK-AIR | Homer | 1989 | | Renamed toInlet Airlines[397] |
| Copper State Airlines | Arizona | | | ROD | ROADRUNNER | Douglas | 1980 | 1982 | [398] |
| Coral Air | United States Virgin Islands | | VY | VYK | | Saint Croix | 1980 | 1985 | Acquired the operation ofEastern Caribbean Airlines. OperatedGAF Nomad,Embraer Bandeirante,Twin Otter[399] |
| Cordova Airlines | Alaska | | | | | Cordova | 1934 | 1968 | Acquired byAlaska Airlines[400] |
| Coronado Flyers | California | | | | | | 1975 | 1981 | OperatedDC-3[401] |
| Corporate Air Fleet | Tennessee | | | CTX | CATBIRD | Nashville | 1978 | 1998 | [402] |
| Corporate Airlines | Tennessee | | 3C | CEA | CORP X | Smyrna | 1996 | 2007 | Renamed as Corporate Airlines in 1997. Changed name toRegionsAir in 2004.[403] |
| Corporate Express Airlines | Tennessee | | | | | Nashville | 1996 | 1998 | Renamed toCorporate Airlines[404] |
| Cortland Air Company | Ohio | | | | | Youngstown–Warren | 2003 | 2009 | [405] |
| Cosmopolitan Airlines | New York | | | | | Republic | 1978 | 1980 | |
| Cromwell Air Lines | Texas | | | | | Dallas Love Field | 1929 | 1931 | OperatedStinson Aircraft Company[406] |
| Cross Sound Commuter | Washington | | | | | Seattle–Tacoma | 1970 | 1974 | [407] |
| Crown Airways | Pennsylvania |  | | CRO | CROWN AIRWAYS | DuBois | 1969 | 1994 | Began as Allegheny Commuter, toMesa Airlines |
| Cryderman Air Service | Michigan | | | | | Oakland County | 1977 | 1978 | [408] |
| Crystal Air Aviation | California | | | | | Van Nuys | 2007 | 2012 | Renamed toFuga Air Charter[409] |
| Crystal Shamrock Airlines | Minnesota | | | CYT | CRYSTAL AIR | Minneapolis Crystal | 1972 | 1991 | |
| Cumberland Airlines | Maryland | | NQ | | | Greater Cumberland | 1969 | 1988 | Established asNicholson Air Services[410] |
| Curtiss Flying Service | Massachusetts | | | | | Boston | 1929 | 1932 | Operated amphibious aircraft |
| Curtiss Metropolitan Airplane Company | Florida | | | | | Miami-Opa Locka | 1921 | 1924 | Established asAmerica Trans-Oceanic Company. Newspaper deliveries[411] |
| Custom Air Transport | Florida |  | 5R | CTT | CATT | Fort Lauderdale–Hollywood | 1985 | 2008 | |
| Cutter Flying Service | New Mexico | | | | | Albuquerque | 1969 | 1969 | [412] |