This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Keikyū Airport Line" – news ·newspapers ·books ·scholar ·JSTOR(October 2014) (Learn how and when to remove this message)

Keikyu Airport Line
KK
A N1000 series approaching Kōjiya station
Overview
Native name	京急空港線
Owner	Keikyu
Locale	Tokyo
Termini	Keikyū Kamata Haneda Airport Terminal 1·2
Stations	7
Service
Type	Commuter rail
History
Opened	28 June 1902; 123 years ago (1902-06-28)
Technical
Line length	6.5 km (4.0 mi)
Number of tracks	2
Track gauge	1,435 mm (4 ft 8+1⁄2 in)standard gauge
Old gauge	4 ft 6 in (1,372 mm)
Electrification	1,500 V DC (overhead catenary)
Operating speed	110 km/h (70 mph)
Signalling	Automatic closed block
Train protection system	C-ATS

TheKeikyu Airport Line (京急空港線,Keikyū Kūkō-sen) is a 6.5 km (4.0 mi) commuter line operated in Japan by the private railway operatorKeikyu. It connectsKeikyu Kamata withHaneda Airport Terminal 1·2 (atTokyo International Airport) inTokyo, and has Express (急行), Limited Express (特急, 快特) and Airport Limited Express (エアポート快特) services, virtually all of which continue along theKeikyu Main Line either north toShinagawa Station in central Tokyo with some trains continuing onto theToei Asakusa Line, or south toYokohama Station and onward towardsZushi-Hayama Station.

There is aswitchback atKeikyū Kamata for direct train services between Yokohama Station and Haneda Airport.

Keikyu operates the following different types of service, including all-stations "Local" trains.

Abbreviations:

•   Lo = Local (普通,Futsū): Stops at all stations
•   Exp = Express (急行,Kyūkō)
•   TLE = TOKKYŪ Limited Express (特急,Tokkyū)
•   KLE = KAITOKU Limited Express (快特,Kaitoku)
•   ALE = Airport Limited Express (エアポート快特,Eapōto Kaitoku)

On 28 June 1902, the Keihin Railway opened the1,435 mm (4 ft 8+1⁄2 in) gauge Anamori Line from Kamata to Anamori Station (穴守駅) (close to the present-day Tenkūbashi Station), electrified at 600 V DC.^[3] In 1904, the line wasregauged to1,372 mm (4 ft 6 in) in conjunction with the regauging of the Keikyu Main Line. The entire line was double-tracked in 1910.^[3]

The line was built to transport the visitors of AnamoriInari Shrine which was located in front of Anamori Station. Keihin Railway built a baseball park, tennis court, swimming pool, amusement park nearby to help increase the users of the line. In 1931,Haneda Airport opened 500 m (1,600 ft) north of Anamori Station.

The line was the primary rail route to Haneda Airport (via Anamori Station) until 1945, when the airport was taken over by the United States Armed Forces. The line was converted back to single track in order to make way for a parallel freight line. Service to the airport island resumed on 20 April 1956 when the line was extended to a new Haneda Airport Station (present-day Tenkūbashi Station), and from 1 November 1963 the line was renamed the Airport Line.^[3] It was not commonly used to access the airport for many years, as frequencies were limited and no through services to central Tokyo were offered, in comparison to theTokyo Monorail which provided direct service fromHamamatsucho to the airport terminal beginning in 1964.

Haneda Airport was significantly expanded with a new terminal in 1993, and Keikyu received government permission to serve the new terminal as the monorail alone was deemed to have inadequate capacity. From 18 November 1998, the Airport Line was extended from Tenkūbashi to Haneda Airport Station (present-day Haneda Airport Terminal 1·2 Station^[1]), allowing direct service between the airport and major stations such asShinagawa andYokohama.^[3] Haneda Airport International Terminal Station opened on 21 October 2010.^[3]

Keikyu teamed up withSega to decorate a special limited edition "Sonic the Hedgehog/Puyo Puyo" train which ran on the Keikyu Airport line from 14 November 2016 to 17 December 2016 to celebrate the 25th anniversary for both games. The train was part of the Keikyu 2100 series' "Keikyu Blue Sky Train" livery and featured images ofSonic,Tails,Knuckles,Amy,Shadow,Silver,Eggman and Carbuncle as well as a collection of the game's expressive stacking blobs. In addition, signs at the Airport Line's Otorii Station, the closest stop to the site of Sega's original office prior to 2018, were featuring special images honoring the games.^[4]

From the timetable revision effective 25 November 2023, all "Airport Express" services will be renamed to "Express" while abandoning the airplane symbology used on these services.^[5]

Service levels are expected to be increased following the completion of tail tracks atHaneda Airport Terminal 1·2 Station.^[6]

• List of railway lines in Japan

• Keikyū Airport Line
• Lines of Keikyu
• Railway lines in Tokyo
• Airport rail links in Japan
• 1067 mm gauge railways in Japan
• 4 ft 6 in gauge railways in Japan
• Standard-gauge railways in Japan
• Haneda Airport
• Railway lines opened in 1902
• 1902 establishments in Japan

• CS1 Japanese-language sources (ja)
• CS1 uses Japanese-language script (ja)
• Articles with short description
• Short description is different from Wikidata
• Articles needing additional references from October 2014
• All articles needing additional references
• Use dmy dates from August 2020
• Articles containing Japanese-language text