| AAB | Airport Advisory Board |
|---|---|
| AAS | Airport Advisory Service |
| ABC | skr. pre prvú pomoc, Airway-Breathing-Circulation |
| ABS | Abu Simbel Airport, kód letiska IATA |
| ABS | Airport Base Station, WLAN riešenie od firmy Apple |
| AEP | Airport Emergency Plan |
| ANP | Armée Nationale Populaire (skr.) |
| ASDE | Airport Surface Detection Equipment, zariadenie na sledovanie pohybu po ploche letiska (angl.skr.) |
| ASR | Airport Surveillance Radar, letiskový prehľadový radar |
| ASUS | Association Sportive Universitaire Suisse (skr.) |