| - | - | Bloomsburg Municipal | Bloomsburg | |
| CNK | KCNK | Blosser Municipal Airport | Concordia | |
| - | - | Bloyer | Tomah | |
| BLU | KBLU | Blue Canyon Airport | Blue Canyon | |
| - | KSBU | Blue Earth Municipal | Blue Earth | |
| BFB | - | Blue Fox Bay Airport | Blue Fox Bay | |
| - | - | Blue Hill | Blue Hill | |
| - | - | Blue Knob Valley | Newry | |
| - | - | Blue Swan | Sayre | |
| - | - | Bluebird Hill | Keithville | |
| - | - | Bluff | Bluff | |
| - | - | Bluffton | Bluffton | |
| HKA | KHKA | Blytheville Municipal Airport | Blytheville | |
| - | - | Boardman | Boardman | |
| - | - | Boerne Stage | San Antonio | |
| - | KNJM | Bogue Mcalf | Swansboro | |
| - | - | Bois Blanc | Pointe Aux Pins | |
| - | - | Boise City | Boise City | |
| - | KTVY | Bolinder-Tooele Valley | Tooele | |
| - | - | Bolingbrook Med Center Heliport | Bolingbrook | |
| - | - | Bolivar Municipal | Bolivar | |
| BOF | - | Bolling Air Force Base | Washington | |
| - | - | Bollinger-Crass Memorial | Van Buren | |
| - | KTZR | Bolton Field | Columbus | |
| - | - | Bonnie | Rock | |
| BNW | KBNW | Boone Airport | Boone | |
| - | - | Boone County Airport | Lebanon | |
| - | - | Booneville Municipal | Booneville | |
| - | - | Booneville/Baldwyn | Booneville/Baldwyn | |
| - | - | Boonville | Boonville | |
| - | - | Boonville | Boonville | |
| - | - | Bordelon | Breaux Bridge | |
| - | - | Bordner | Bowling Green | |
| BGD | KBGD | Borger Airport | Borger | |
| - | - | Borges-Clarksburg Airport | Clarksburg | |
| RLU | - | Bornite Upper Airport | Bornite | |
| BXS | - | Borrego Springs Airport | Borrego Springs | |
| - | KOVS | Boscobel | Boscobel | |
| JBC | - | Boston City Heliport | Boston | |
| BNH | - | Boston Harbor Seaplane Base | Boston | |
| BSW | - | Boswell Bay Airport | Boswell Bay | |
| - | - | Botsford | Wellington | |
| - | - | Bottineau Municipal | Bottineau | |
| - | - | Boulder | Boulder | |
| - | KBDJ | Boulder Junction | Boulder Junction | |
| BYA | - | Boundary Airport | Boundary | |
| - | - | Boundary Co | Bonners Ferry | |
| BTF | KBTF | Bountiful Skypark | Bountiful | |
| - | - | Bourland | Ft Worth | |
| - | - | Bowbells Municipal | Bowbells | |