| - | - | Bowdle Municipal | Bowdle | |
| ELN | KELN | Bowers Field | Ellensburg | |
| - | - | Bowie | Bowie | |
| - | - | Bowie Municipal | Bowie | |
| - | - | Bowling Green Municipal | Bowling Green | |
| - | - | Bowman | Anaconda | |
| - | - | Bowman | Livermore Falls | |
| BWM | KBPP | Bowman Airport | Bowman | |
| - | - | Bowstring | Deer River | |
| BXC | - | Boxborough Airport | Boxborough | |
| - | - | Boyceville Municipal | Boyceville | |
| - | - | Boylan State | Island Pond | |
| - | - | Boyne City Municipal | Boyne City | |
| - | KBFA | Boyne Mtn | Boyne Falls | |
| POC | KPOC | Brackett Field | La Verne | |
| - | - | Bradford Co | Towanda | |
| - | - | Bradley Sky Ranch | North Pole | |
| BSF | PHSF | Bradshaw Army Air Field | Pohakuloa | |
| - | KOEB | Branch Co Memorial | Coldwater | |
| - | - | Brand | Longmont | |
| - | - | Brandywine | West Chester | |
| - | - | Brandywine Hospital Heliport | Coatesville | |
| - | - | Branhams | Darlington | |
| - | - | Brantley Co | Nahunta | |
| BWC | KBWC | Brawley Municipal Airport | Brawley | |
| - | - | Braxton Co | Sutton | |
| - | - | Brazil Clay Co | Brazil | |
| LJN | KLBX | Brazoria County Airport | Lake Jackson | |
| - | - | Breckinridge Co | Hardinsburg | |
| - | - | Bredlow Farm | England | |
| - | - | Brenham Municipal | Brenham | |
| - | - | Brennand | Neenah | |
| - | KFNB | Brenner | Falls City | |
| - | - | Bressler | Bird City | |
| - | - | Bresson | Compton | |
| - | - | Brewer | Brewer | |
| HDE | KHDE | Brewster Field | Holdrege | |
| - | - | Brewton Municipal | Brewton | |
| - | - | Bridgeport Municipal | Bridgeport | |
| - | - | Bridger Municipal | Bridger | |
| - | KVBW | Bridgewater | Bridgewater | |
| BMC | KBMC | Brigham City Airport | Brigham City | |
| - | - | Brighton | Brighton | |
| TTO | KBTN | Britton Municipal Airport | Britton | |
| BDX | KBDX | Broadus Airport | Broadus | |
| - | - | Brodhead | Brodhead | |
| - | - | Broken Bow | Broken Bow | |
| - | - | Brokenstraw | Pittsfield | |
| WBI | - | Broker Inn Airport | Boulder | |
| - | - | Brookbridge | Vaughn | |