| | Airport Code | City | State/Region | Country | Airport Name | | AAE | Annaba | | Algeria | Les Salines |
| AAL | Aalborg | | Denmark | Aalborg |
| AAR | Aarhus | | Denmark | Tirstrup |
| ABE | Allentown | PA | USA | Allentown-Bethlehem-Easton Airport |
| ABI | Abilene | TX | USA | Municipal |
| ABJ | Abidjan | | Cote D'ivoire | Port Bouet |
| ABL | Ambler | AK | USA | |
| ABM | Bamaga | Queensland | Australia | |
| ABQ | Albuquerque | NM | USA | Albuquerque International Airport |
| ABR | Aberdeen | SD | USA | Aberdeen Regional Airport |
| ABS | Abu Simbel | | Egypt | Abu Simbel |
| ABX | Albury | New South Wales | Australia | Albury |
| ABY | Albany | GA | USA | Dougherty County |
| ABZ | Aberdeen | Scotland | United Kingdom | Dyce |
| ACA | Acapulco | Guerrero | Mexico | Alvarez International |
| ACC | Accra | | Ghana | Kotoka |
| ACE | Lanzarote | Canary Islands | Spain | Lanzarote |
| ACI | Alderney | Channel Islands | United Kingdom | The Blaye |
| ACK | Nantucket | MA | USA | |
| ACT | Waco | TX | USA | Madison Cooper |
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