Three services in theNew York City Subway are designated as aS (shuttle) service. These services operate as full-time or almost full-time shuttles.^[1] In addition, three services run as shuttles during late night hours but retain their regular service designations.^[2]

All of the following services are officially labeled S. The "NYCT designator" column stands for New York City Transit's internal designation for the service.

Shuttle name	NYCT designator	Division	Northern terminal	Southern terminal	Service hours	Notes	Image
42nd Street Shuttle	0 (zero)	A	Times Square	Grand Central	Operates at all times except late nights.	Two trains independently operate on each of the two tracks. Rebuilt and reconfigured for ADA-accessibility from 2019 to 2022.[3]
Rockaway Park Shuttle	H	B	Broad Channel orRockaway Boulevard[a]	Rockaway Park–Beach 116th Street	Operates at all times.	Three trains operate on the double-tracked Rockaway Park branch of theIND Rockaway Line.
Franklin Avenue Shuttle	S		Franklin Avenue	Prospect Park	Operates at all times.	Two trains operate on the partially single-trackedBMT Franklin Avenue Line, passing each other nearBotanic Garden.

Route	Name	Northern terminal	Southern terminal	Notes	Image
	Dyre Avenue Shuttle	Eastchester–Dyre Avenue	East 180th Street	Formerly designated 9, before the line became an IRT line, and SS.
	Lefferts Boulevard Shuttle	Ozone Park-Lefferts Boulevard	Euclid Avenue	Operates concurrently with regular A service to Far Rockaway. Designated (gray A) on the late night map and on trains.
	Myrtle Avenue Shuttle	Middle Village–Metropolitan Avenue	Myrtle Avenue	Formerly designated SS. SeeMyrtle Shuttle (1969–1972) below.

Other routes have in the past been designatedS orSS; the label has also been used for temporary shuttles due to construction. Before June 1979,^[4] all shuttles had the label SS; the designation S was reserved for "special" services, includingIND trains toAqueduct Racetrack. The SS label was first applied in 1967, when some services were relabeled due to the completion of theChrystie Street Connection (seeNew York City Subway nomenclature § History).

Former uses of the S or SS designation include:

• Bowling Green – South Ferry Shuttle (1909–1977)
• Culver Shuttle (1954–1975)
• Sixth Avenue Shuttle (1986–1988) – ran between 57th Street and Grand Street
• 63rd Street Shuttle (1998–1999, 2023-2024)
• Grand Street Shuttle (2001–2004, 2013)

Some shuttle routes also used the H or HH designation, which were the last to be assigned to theIndependent Subway System. Former uses include theCourt Street Shuttle from 1936 to 1946 andRockaway Park Shuttle until 1993, when that route's label was changed to a blue S. A temporary shuttle that opened in November 2012 afterHurricane Sandy destroyed track connecting the Rockaways to the rest of the system used the H designation.

When the Transit Authority began assigning labels to all services, theThird Avenue Elevated was designated as 8 because it was deemed too long to be considered a "shuttle". However, trains on this line showed SHUTTLE on their rollsigns instead of "8". The service was discontinued in 1973.

This shuttle ran only from May to September 1999 during the rehabilitation of theWilliamsburg Bridge. The shuttle ran from 6:00 am to 10:00 pm daily fromEssex Street toBroad Street (Chambers Street on weekends, late nights, and evenings).

Two trains operated separately on each of two tracks on theBMT Myrtle Avenue Line betweenMyrtle-Wyckoff Avenues andMiddle Village-Metropolitan Avenue. They ran at all times between September 2, 2017, and April 27, 2018, due to construction on the BMT Myrtle Avenue Line's connector with theBMT Jamaica Line.^[5] It was designated as an orange "M" on maps, schedules, and station and service notice signs, and as a brown "M" on theR42 rolling stock, which still had the brown "M" emblems that the route used before 2010.

TheLenox Terminal Shuttle (alsoLenox Shuttle andLenox Avenue Shuttle) ran between148th Street and135th Street when the3 did not run. Prior to the opening of the 148th Street station on May 13, 1968, it was called the145th Street Shuttle, running only to145th Street, and only from 9:00 pm to 1:00 am. It was in place by 1918,^[6] but may have been started in 1905 when theIRT White Plains Road Line opened to theIRT Lenox Avenue Line.

Between 1969 and 1972, it was folded into the 3, but continued to run as a shuttle at those times. Late night 3 service ended on September 10, 1995,^[7] due to low ridership,^[8] and was not restored until July 27, 2008. During this time, the route was served by a free overnight shuttle bus.^[9]

After theBMT Myrtle Avenue Line south ofBroadway ceased operation on October 3, 1969, the MJ service was discontinued and the current nighttime M shuttle was formed, using the lower-level platforms in the same station complex. Prior to 2014, when the M was extended to Essex Street during weekend days, it operated on weekends as well. However, this service was labeled SS and considered a separate route from the M until the two routes merged in August 1972.^[10]: 62

On September 30, 1990, late nightR trains began operating as a shuttle in Brooklyn, between36th Street (cut back from57th Street in Manhattan) and95th Street.^[11] In 1999, northbound trains began skipping53rd Street and45th Streets to avoid being on the track at 36th Street that is used by through trains when discharging shuttle passengers. From September 8, 2002, until February 22, 2004, this service was extended northward toPacific Street, due to reconstruction of theConey Island station, running express north of 36th Street. On November 5, 2016, late night R trains were extended toWhitehall Street in Lower Manhattan.^[12]

• MTA Subway Time—Shuttle
• nycsubway.org
  • New York City Subway Historical Maps
  • FAQ: The Letter, Number and Color Codes of the New York Subways
• Line By Line History

• New York City Subway services
• Defunct New York City Subway services

• Articles with short description
• Short description is different from Wikidata
• Use mdy dates from December 2022