| - | KDWU | Ashland-Boyd Co | Ashland | |
| - | - | Ashland-Lineville | Ashland-Lineville | |
| - | - | Ashley | Morris | |
| ASY | KASY | Ashley Airport | Ashley | |
| JFN | - | Ashtabula Airport | Jefferson | |
| - | KHZY | Ashtabula Co | Ashtabula | |
| - | - | Athens Municipal | Athens | |
| - | - | Atlanta | Atlanta | |
| - | - | Atlanta Municipal | Atlanta | |
| AIO | KAIO | Atlantic Municipal Airport | Atlantic | |
| - | - | Atmore Municipal | Atmore | |
| - | - | Atoka Municipal | Atoka | |
| OSX | KOSX | Attala County Airport | Kosciusko | |
| - | - | Atwood Lodge | Dellroy | |
| - | KADT | Atwood-Rawlins Co City-Co | Atwood | |
| AUN | KAUN | Auburn Airport | Auburn | |
| - | - | Auburn Municipal Airport | Auburn | |
| - | KADU | Audubon Co | Audubon | |
| - | - | Augusta | Augusta | |
| - | - | Augusta Municipal | Augusta | |
| NUW | KNUW | Ault Field | Whidbey Island | |
| - | - | Aurora Airport | Aurora | |
| - | - | Aurora Memorial Municipal | Aurora | |
| - | KAUH | Aurora Municipal | Aurora | |
| ASQ | - | Austin Airport | Austin | |
| AUM | KAUM | Austin Airport | Austin | |
| - | - | Austin Lake | Kalamazoo | |
| - | - | Autauga Co | Prattville | |
| - | KAOV | Ava Martin Memorial | Ava | |
| SXC | - | Avalon Vor/WP Airport | Catalina Island | |
| SWW | KSWW | Avenger Field | Sweetwater | |
| - | - | Avery Co | Spruce Pine | |
| - | - | Avey Field State | Laurier | |
| - | - | Avi Suquilla | Parker | |
| AVO | KAVO | Avon Park Municipal Airport | Avon Park | |
| - | - | Aztec Municipal | Aztec | |
| - | - | Babb | Babb | |
| BCJ | - | Baca Grande Airport | Baca Grande | |
| - | - | Backus Municipal | Backus | |
| - | KAMG | Bacon Co | Alma | |
| - | - | Badami Airstrip | Badami | |
| AIY | KAIY | Bader Field | Atlantic City | |
| - | - | Bagley Municipal | Bagley | |
| - | - | Bailes | Angleton | |
| - | - | Baker | Hohenwald | |
| - | - | Baker | Baker | |
| - | - | Baker | Millington | |
| - | KBHK | Baker Municipal | Baker | |
| - | - | Bakersfield Municipal | Bakersfield | |
| - | - | Bald Knob Municipal | Bald Knob | |