| Abbreviation | Definition |
|---|---|
| AUS | Robert Mueller Municipal Airport, Austin, Texas USA |
| AUU | Aurukun Mission, Queensland, Australia |
| AUV | Aumo, Papua New Guinea |
| AUW | Wausau, Wisconsin USA |
| AUX | Araguaina, TO, Brazil |
| AUY | Aneityum, Vanuatu |
| AVI | Ciego de Avila, Cuba |
| AVL | Asheville, North Carolina USA |
| AVN | Avignon, France |
| AVP | Wilkes-Barre/Scranton International Airport, Wilkes-Barre / Scranton, Pennsylvania USA |
| AVU | Avu Avu, Solomon Islands |
| AWD | Aniwa, Vanuatu |
| AWZ | Ahwaz, Iran |
| AXA | Anguilla, Leeward Islands |
| AXD | Alexandroupolis, Greece |
| AXK | Ataq, Republic of Yemen |
| AXM | Armenia, Colombia |
| AXP | Spring Point, Bahamas |
| AXT | Akita, Japan |
| AXU | Axum, Ethiopia |