Sultan Abdul Aziz Shah Airport, often called Subang Airport or Subang Skypark, is an airport located in Subang, Petaling District, Selangor, Malaysia. Subang International Airport served as Kuala Lumpur's main airport from 1965 to 1998, before the Kuala Lumpur International Airport in Sepang was opened.

Kuala Lumpur International Airport (KLIA) (IATA: KUL, ICAO: WMKK) is Malaysia's main international airport. It is located in the Sepang District of Selangor, approximately 45 kilometres (28 mi) south of Kuala Lumpur and serves the city's greater conurbation.

KLIA is the largest and busiest airport in Malaysia. In 2020, it handled 13,156,363 passengers, 505,184 tonnes of cargo and 124,529 aircraft movements. It is the world's 23rd-busiest airport by total passenger traffic.

The airport is operated by Malaysia Airports (MAHB) Sepang Sdn Bhd and is the major hub of Malaysia Airlines, MASkargo, Batik Air Malaysia, UPS Airlines, and World Cargo Airlines, and the major operating base of AirAsia and AirAsia X.