Heydar Aliyev International Airport (Azerbaijani: Heydər Əliyev adına Beynəlxalq Hava Limanı; IATA: GYD, ICAO: UBBB) is an airport serving Azerbaijan's capital, Baku, and one of the seven international airports of Azerbaijan. It is the busiest airport both in Azerbaijan and in the South Caucasus as well as one of the busiest in the post-Soviet countries. Formerly, it was called Bina International Airport, named after a suburb of Bina located within the metropolitan area of Baku. The airport is 20 kilometers northeast of Baku, connected to the city by Baku Airport Highway. It serves as the hub for national carrier Azerbaijan Airlines as well as for Azal Avia Cargo and Silk Way West Airlines.