- See also: List of airports by IATA and ICAO code
- ^1 Nicosia International Airport (IATA: NIC, ICAO: LCNC) has been inoperative since 1974 but retains its airport codes.
- ^2 NYC collectively refers to John F. Kennedy International Airport (IATA: JFK), LaGuardia Airport (IATA: LGA), Newark Liberty International Airport (IATA: EWR), and Stewart International Airport (IATA: SWF).
- "United Nations Code for Trade and Transport Locations". UN/LOCODE 2011-2. UNECE. 28 February 2012. - includes IATA codes
- "ICAO Location Indicators by State" (PDF). International Civil Aviation Organization. 17 September 2010.
- Aviation Safety Network - IATA and ICAO airport codes
- Great Circle Mapper - IATA, ICAO and FAA airport codes