Airport rail link in the context of "Metrolinx"

The Beijing Subway is the rapid transit system of Beijing Municipality that consists of 29 lines including 24 rapid transit lines, two airport rail links, one maglev line and two light rail tram lines, and 524 stations. The rail network extends 879 km (546 mi) across 12 urban and suburban districts of Beijing and into one district of Langfang in neighboring Hebei province. In December 2023, Beijing Subway became the world's longest metro system by route length, surpassing the Shanghai Metro. With 3.8484 billion trips delivered in 2018 (10.544 million trips per day) and single-day ridership record of 13.7538 million set on July 12, 2019, the Beijing Subway was the world's busiest metro system in the years immediately prior to the outbreak of the COVID-19 pandemic.

The Beijing Subway opened in 1971 and is the oldest metro system in China and on the mainland of East Asia. Before the system began its rapid expansion in 2002, the subway had only two lines. The existing network still cannot adequately meet the city's mass transit needs. Beijing Subway's extensive expansion plans call for 998.5 km (620.4 mi) of lines serving a projected 18.5 million trips every day when Phase 2 Construction Plan finished (around 2025). The most recent expansion came into effect on December 15, 2024, with the openings of Line 3 and Line 12 and an extension of the Changping line.

Narita Airport Terminal 1 (Narita Airport) Station (Japanese: 成田空港(成田第1ターミナル)駅, romanized: Narita Kūkō (Narita daiichi tāminaru)-eki) is an underground airport rail link station located beneath Terminal 1 of Narita International Airport in Narita, Chiba, Japan. The station is shared between East Japan Railway Company (JR East) and the private railway operator Keisei Electric Railway.

The Airport Rail Link (ARL) (Thai: รถไฟฟ้าแอร์พอร์ต เรล ลิงก์) is an airport rail link line in Bangkok Metropolitan Region connecting Suvarnabhumi Airport to the city center. The commuter rail line starts at Suvarnabhumi station underneath the airport terminal, before ascending onto an elevated viaduct to Lat Krabang station where it meets the eastern line railway station of the same name. (Each Airport Rail Link station, except Suvarnabhumi and Ratchaprarop stations, is located above an eastern line railway station.) The line continues west, directly running above the eastern line railway for the rest of the line. It runs towards Ban Thap Chang station, then towards Hua Mak station where it meets Yellow Line, then towards Ramkhamhaeng station, then towards Makkasan station where it meets Blue Line, then towards Ratchaprarop station, then towards Phaya Thai station where the line terminates and meets Sukhumvit Line. It is owned by State Railway of Thailand (SRT) and, since 2021, operated by Asia Era One Company Limited. The 28.6-kilometer (17.8 mi)-long Airport Rail Link opened for service on 23 August 2010.

In the future, Airport Rail Link will extend from Phaya Thai towards Krung Thep Aphiwat Central Terminal and Don Mueang International Airport. Its rail will also be used for the proposed Don Mueang–Suvarnabhumi–U-Tapao high-speed railway.

AirTrain JFK is an 8.1-mile-long (13 km) elevated people mover system and airport rail link serving John F. Kennedy International Airport (JFK Airport) in New York City. The driverless system operates 24/7 and consists of three lines and nine stations within the New York City borough of Queens. It connects the airport's terminals with the New York City Subway at the Howard Beach station in the eponymous neighborhood, and with the Long Island Rail Road and the subway in the Jamaica neighborhood. Alstom operates AirTrain JFK under contract to the airport's operator, the Port Authority of New York and New Jersey.

A railroad link to JFK Airport had been proposed since the 1940s. Various plans surfaced to build a JFK Airport rail connection until the 1990s, though these were not carried out because of a lack of funding. The JFK Express subway service and shuttle buses provided an unpopular transport system to and around JFK. In-depth planning for a dedicated transport system at JFK began in 1990 but was ultimately cut back from a direct rail link to an intra-borough people mover. Construction of the current people-mover system began in 1998. During construction, AirTrain JFK was the subject of several lawsuits, and an operator died during one of the system's test runs. The system opened on December 17, 2003, after many delays. Several improvements were proposed after the system's opening, including an unbuilt extension to Manhattan. AirTrain JFK originally had ten stations, but the Terminal 2 stop was closed in 2022.