| AST | KAST | Astoria Regional Airport | Astoria | |
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| AHN | KAHN | Athens Ben Epps Airport | Athens | |
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| ACY | KACY | Atlantic City International Airport | - | |
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| ATK | PATQ | Atqasuk Edward Burnell Sr Memorial Airport | Atqasuk | |
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| AUG | KAUG | Augusta State Airport | Augusta | |
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| BKE | KBKE | Baker City Municipal Airport | Baker | |
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| BKH | PHBK | Barking Sands Airport | Kekaha | |
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| PAH | KPAH | Barkley Regional Airport | Paducah | |
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| BAF | KBAF | Barnes Municipal Airport | Westfield | |
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| HYA | KHYA | Barnstable Municipal Boardman Polando Field | Hyannis | |
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| DAG | KDAG | Barstow Daggett Airport | Daggett | |
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| BTI | PABA | Barter Island LRRS Airport | Barter Island | |
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| BDE | KBDE | Baudette International Airport | Baudette | |
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| DRI | KDRI | Beauregard Regional Airport | De Ridder | |
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| BFP | KBVI | Beaver County Airport | Beaver Falls | |
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| BLI | KBLI | Bellingham International Airport | Bellingham | |
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| BJI | KBJI | Bemidji Regional Airport | Bemidji | |
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| BTM | KBTM | Bert Mooney Airport | Butte | |
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| BET | PABE | Bethel Airport | Bethel | |
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| BTT | PABT | Bettles Airport | Bettles | |
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| BVY | KBVY | Beverly Municipal Airport | Beverly | |
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| BYS | KBYS | Bicycle Lake Army Air Field | Fort Irwin | |
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| BIF | KBIF | Biggs Army Air Field (Fort Bliss) | - | |
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| DUG | KDUG | Bisbee Douglas International Airport | Douglas | |
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| FNT | KFNT | Bishop International Airport | Flint | |
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| BIS | KBIS | Bismarck Municipal Airport | Bismarck | |
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| BLH | KBLH | Blythe Airport | Blythe | |
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| IAN | PAIK | Bob Baker Memorial Airport | Kiana | |
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| BUR | KBUR | Bob Hope Airport | Burbank | |
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| CEW | KCEW | Bob Sikes Airport | Crestview | |
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| HRO | KHRO | Boone County Airport | Harrison | |
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| HQM | KHQM | Bowerman Airport | Hoquiam | |
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| BWG | KBWG | Bowling Green Warren County Regional Airport | Bowling Green | |
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| LOU | KLOU | Bowman Field | - | |
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| BFD | KBFD | Bradford Regional Airport | Bradford | |
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| BSF | PHSF | Bradshaw Army Airfield | Pohakuloa | |
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| BRD | KBRD | Brainerd Lakes Regional Airport | Brainerd | |
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| PWT | KPWT | Bremerton National Airport | Bremerton | |
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| SDM | KSDM | Brown Field Municipal Airport | - | |
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| BRO | KBRO | Brownsville South Padre Island International Airport | Brownsville | |
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| NHZ | KNHZ | Brunswick Executive Airport | Brunswick | |
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| BQK | KBQK | Brunswick Golden Isles Airport | - | |
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| BCE | KBCE | Bryce Canyon Airport | Bryce | |
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| BKC | PABL | Buckland Airport | Buckland | |
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| BKL | KBKL | Burke Lakefront Airport | - | |
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| BYI | KBYI | Burley Municipal Airport | Rupert | |
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| BTV | KBTV | Burlington International Airport | Burlington | |
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| FCS | KFCS | Butts AAF (Fort Carson) Air Field | - | |
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| OZR | KOZR | Cairns AAF (Fort Rucker) Air Field | Ozark | |
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| HOP | KHOP | Campbell AAF (Fort Campbell) Air Field | Hopkinsville | |
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