- Blanket Bay AirportIdent: 6FD5Serves: Yeehaw Junction
- Blatter AirportIdent: 25MTServes: Glasgow
- Blazer AirportIdent: 69MUServes: Easton
- Bleakley Ranch AirportIdent: 5TE2Serves: Dripping Springs
- Blech Ranch AirportIdent: 0CA9Serves: Shandon
- Bledsoe Ranch AirportIdent: 0SD3Serves: Hoover
- Blessings Landing Air RanchIdent: 84ALServes: Pinckard
- Blickhan Lndg Area AirportIdent: 88ISServes: Quincy
- Blo AirportIdent: 12TSServes: Mineral Wells
- Block Air Village AirportIdent: MO71Serves: Holt
- Block AirportIdent: 88LLServes: Pearl City
- Block Island State AirportIdent: KBIDServes: Block Island
- Block Ranch AirportIdent: 4AZ2Serves: Capitan
- Block Ranch AirportIdent: TX78Serves: Alvarado
- Bloecher Farm AirportIdent: 92NYServes: Strykersville
- Blomberg 42 Ranch Private AirportIdent: SD48Serves: Faith
- Blomenberg AirportIdent: II85Serves: Decatur
- Blomster FieldIdent: 5PA0Serves: Carmichaels
- Bloomfield Municipal AirportIdent: 84YServes: Bloomfield
- Bloomfield Municipal AirportIdent: K4K6Serves: Bloomfield
- Bloomsburg Municipal AirportIdent: KN13Serves: Bloomsburg
- Blosser Municipal AirportIdent: KCNKServes: Concordia
- Blouin Flightpark UltralightportIdent: 4LA9Serves: Raceland
- Bloyer FieldIdent: KY72Serves: Tomah
- Blu Skyz AirportIdent: US-12736Serves: Minot
- Blue Bird AirportIdent: OH38Serves: Belpre
- Blue Bird FieldIdent: 7TN0Serves: Pleasantview
- Blue Canyon Nyack AirportIdent: KBLUServes: Emigrant Gap
- Blue Earth Municipal AirportIdent: KSBUServes: Blue Earth
- Blue Haven AirportIdent: 48PSServes: Harrisonville
- Blue Haven Farm AirportIdent: 14KYServes: Paris
- Blue Heron FieldIdent: WN49Serves: Sequim
- Blue Hill AirportIdent: 07BServes: Blue Hill
- Blue Jay AirfieldIdent: US-5083Serves: Justin
- Blue Knob Valley AirportIdent: 7G4Serves: Duncansville
- Blue Lick AirportIdent: 07KYServes: Louisville
- Blue Mountain Academy (Private) AirportIdent: PA92Serves: Hamburg
- Blue Ribbon AirportIdent: WN29Serves: Sequim
- Blue Ridge AirportIdent: KMTVServes: Martinsville
- Blue Ridge AirportIdent: US-0998Serves: Blue Ridge
- Blue Ridge Flightpark AirportIdent: 34FDServes: Oakhill
- Blue Ridge Skyport AirportIdent: 57GAServes: Blue Ridge
- Blue Skies Farm AirportIdent: OR87Serves: Salem
- Blue Sky AirfieldIdent: 2TX0Serves: Amarillo
- Blue Sky AirportIdent: 3MN7Serves: Sabin
- Blue Sky AirportIdent: 8KS5Serves: Parsons
- Blue Water AirportIdent: US-8947Serves: Saguache
- Blueberry FieldIdent: 7NK6Serves: Treadwell
- Blueberry Hill AirportIdent: MA77Serves: Washington
- Bluebird AirportIdent: 03OLServes: Alex
- Bluebird AirportIdent: 35IDServes: Salmon
- Bluebird AirportIdent: IA17Serves: Cedar Falls
- Bluebird AirportIdent: IG03Serves: Paragon
- Bluebird Hill AirportIdent: 5F5Serves: Keithville
- Bluecreek AirportIdent: WA57Serves: Addy
- Bluestem AirportIdent: OK58Serves: Collinsville
- Bluff Park Farm AirportIdent: 71AKServes: Wasilla
- Blumenstetter AirportIdent: MU63Serves: Elkland
- Blunt FieldIdent: 3WN8Serves: Chippewa Falls
- Blythe Bayou Farms AirportIdent: 21MSServes: Lake Cormorant