airport | John F. Kennedy International Airport | Los Angeles International Airport | London Heathrow Airport | LaGuardia Airport | Sydney Airport | Miami International Airport | O'Hare International Airport | Hong Kong International Airport | Newark Liberty International Airport | Airport | San Francisco International Airport | Brussels Airport | Narita International Airport | Ninoy Aquino International Airport | Gatwick Airport | Sultan Abdul Aziz Shah Airport | Singapore Changi Airport | Pittsburgh International Airport | Perth Airport | London Stansted Airport | Melbourne Airport | Croydon Airport | Toronto Pearson International Airport | Malta International Airport | Bandaranaike International Airport | Suvarnabhumi Airport | Port Columbus International Airport | Luis Muñoz Marín International Airport | Leeds Bradford International Airport |
Three-letter identifiers are assigned as radio call signs to aeronautical navigation aids; to airports with a manned air traffic control facility or navigational aid within airport boundary; to airports that receive scheduled route air carrier or military airlift service, and to airports designated by the United States Customs Service as Airports of Entry.