| B04 | Garnseys Airport | Schuylerville NY |
| B06 | Basin Harbor Airport | Vergennes VT |
| B10 | Bowman Field Airport | Livermore Falls ME |
| B16 | Whitfords Airport | Weedsport NY |
| B18 | Alton Bay Seaplane Base | Alton Bay NH |
| B19 | Biddeford Muni Airport | Biddeford ME |
| B21 | Sugarloaf Rgnl Airport | Carrabassett ME |
| B70 | Tiber Dam Airport | Tiber Dam MT |
| BAB | Beale Afb Airport | Marysville CA |
| BAC | Barnes County Muni Airport | Valley City ND |
| BAD | Barksdale Afb Airport | Bossier City LA |
| BAF | Westfield-barnes Rgnl Airport | Westfield/springfield MA |
| BAK | Columbus Muni Airport | Columbus IN |
| BAM | Battle Mountain Airport | Battle Mountain NV |
| BAX | Huron County Memorial Airport | Bad Axe MI |
| BAZ | New Braunfels Rgnl Airport | New Braunfels TX |
| BB0 | Black Butte North Airport | Winifred MT |
| BBB | Benson Muni Airport | Benson MN |
| BBD | Curtis Field Airport | Brady TX |
| BBG | Branson Airport | Branson MO |
| BBP | Marlboro County Jetport - H.e. Avent Field Airport | Bennettsville SC |
| BBW | Broken Bow Muni/keith Glaze Fld Airport | Broken Bow NE |
| BCB | Virginia Tech/montgomery Executive Airport | Blacksburg VA |
| BCE | Bryce Canyon Airport | Bryce Canyon UT |
| BCK | Black River Falls Area Airport | Black River Falls WI |
| BCT | Boca Raton Airport | Boca Raton FL |
| BCV | Birchwood Airport | Birchwood AK |
| BDE | Baudette Intl Airport | Baudette MN |
| BDG | Blanding Muni Airport | Blanding UT |
| BDH | Willmar Muni-john L Rice Field Airport | Willmar MN |
| BDJ | Boulder Junction Payzer Airport | Boulder Junction WI |
| BDL | Bradley Intl Airport | Windsor Locks CT |
| BDN | Bend Muni Airport | Bend OR |
| BDQ | Morrilton Muni Airport | Morrilton AR |
| BDR | Igor I Sikorsky Memorial Airport | Bridgeport CT |
| BDU | Boulder Muni Airport | Boulder CO |
| BEA | Beeville Muni Airport | Beeville TX |
| BEC | Beech Factory Airport | Wichita KS |
| BED | Laurence G Hanscom Fld Airport | Bedford MA |
| BEH | Southwest Michigan Rgnl Airport | Benton Harbor MI |
| BET | Bethel Airport | Bethel AK |
| BFA | Boyne Mountain Airport | Boyne Falls MI |
| BFD | Bradford Rgnl Airport | Bradford PA |
| BFE | Terry County Airport | Brownfield TX |
| BFF | Western Nebraska Rgnl/william B. Heilig Fi Airport | Scottsbluff NE |
| BFI | Boeing Field/king County Intl Airport | Seattle WA |
| BFK | Buffalo Muni Airport | Buffalo OK |
| BFL | Meadows Field Airport | Bakersfield CA |
| BFM | Mobile Downtown Airport | Mobile AL |
| BFR | Virgil I Grissom Muni Airport | Bedford IN |
| BFW | Silver Bay Muni Airport | Silver Bay MN |
| BGD | Hutchinson County Airport | Borger TX |
| BGE | Decatur County Industrial Air Park Airport | Bainbridge GA |
| BGF | Winchester Muni Airport | Winchester TN |
| BGM | Greater Binghamton/edwin A Link Field Airport | Binghamton NY |
| BGQ | Big Lake Airport | Big Lake AK |
| BGR | Bangor Intl Airport | Bangor ME |
| BHB | Hancock County-bar Harbor Airport | Bar Harbor ME |
| BHC | Baxley Muni Airport | Baxley GA |
| BHK | Baker Muni Airport | Baker MT |
| BHM | Birmingham-shuttlesworth Intl Airport | Birmingham AL |
| BID | Block Island State Airport | Block Island RI |
| BIE | Beatrice Muni Airport | Beatrice NE |
| BIF | Biggs Aaf (fort Bliss) Airport | Fort Bliss/el Paso/ TX |
| BIG | Allen Aaf Airport | Delta Junction Ft Greely AK |
| BIH | Eastern Sierra Rgnl Airport | Bishop CA |
| BIJ | Early County Airport | Blakely GA |
| BIL | Billings Logan Intl Airport | Billings MT |
| BIS | Bismarck Muni Airport | Bismarck ND |
| BIV | West Michigan Rgnl Airport | Holland MI |
| BIX | Keesler Afb Airport | Biloxi MS |
| BJC | Rocky Mountain Metropolitan Airport | Denver CO |
| BJI | Bemidji Rgnl Airport | Bemidji MN |
| BJJ | Wayne County Airport | Wooster OH |
| BKD | Stephens County Airport | Breckenridge TX |
| BKE | Baker City Muni Airport | Baker City OR |
| BKF | Buckley Afb Airport | Aurora CO |
| BKH | Barking Sands Pmrf Airport | Kekaha,kauai HI |
| BKL | Burke Lakefront Airport | Cleveland OH |
| BKN | Blackwell-tonkawa Muni Airport | Blackwell OK |
| BKS | Brooks County Airport | Falfurrias TX |
| BKT | Allen C Perkinson Blackstone Aaf Airport | Blackstone VA |
| BKV | Hernando County Airport | Brooksville FL |
| BKW | Raleigh County Memorial Airport | Beckley WV |
| BKX | Brookings Rgnl Airport | Brookings SD |
| BLF | Mercer County Airport | Bluefield WV |
| BLG | Beluga Airport | Beluga AK |
| BLH | Blythe Airport | Blythe CA |
| BLI | Bellingham Intl Airport | Bellingham WA |
| BLM | Monmouth Executive Airport | Belmar/farmingdale NJ |
| BLU | Blue Canyon - Nyack Airport | Emigrant Gap CA |
| BLV | Scott Afb/midamerica Airport | Belleville IL |
| BMC | Brigham City Airport | Brigham City UT |
| BMG | Monroe County Airport | Bloomington IN |
| BMI | Central Il Rgnl Arpt At Bloomington-normal Airport | Bloomington/normal IL |
| BML | Berlin Rgnl Airport | Berlin NH |
| BMQ | Burnet Muni Kate Craddock Field Airport | Burnet TX |
| BMT | Beaumont Muni Airport | Beaumont TX |
| BNA | Nashville Intl Airport | Nashville TN |
| BNF | Warm Spring Bay Seaplane Base | Baranof AK |
| BNG | Banning Muni Airport | Banning CA |
| BNL | Barnwell Rgnl Airport | Barnwell SC |
| BNO | Burns Muni Airport | Burns OR |
| BNW | Boone Muni Airport | Boone IA |
| BOF | Bolling Afb Heliport | Washington DC |
| BOI | Boise Air Terminal/gowen Fld Airport | Boise ID |
| BOK | Brookings Airport | Brookings OR |
| BOS | General Edward Lawrence Logan Intl Airport | Boston MA |
| BOW | Bartow Muni Airport | Bartow FL |
| BPG | Big Spring Mc Mahon-wrinkle Airport | Big Spring TX |
| BPI | Miley Memorial Field Airport | Big Piney WY |
| BPK | Baxter County Airport | Mountain Home AR |
| BPP | Bowman Muni Airport | Bowman ND |
| BPT | Jack Brooks Rgnl Airport | Beaumont/port Arthur TX |
| BQK | Brunswick Golden Isles Airport | Brunswick GA |
| BQN | Rafael Hernandez Airport | Aguadilla PR |
| BQP | Morehouse Memorial Airport | Bastrop LA |
| BQR | Buffalo-lancaster Rgnl Airport | Lancaster NY |
| BQV | Bartlett Cove Seaplane Base | Bartlett Cove AK |
| BRD | Brainerd Lakes Rgnl Airport | Brainerd MN |
| BRL | Southeast Iowa Rgnl Airport | Burlington IA |
| BRO | Brownsville/south Padre Island Intl Airport | Brownsville TX |
| BRW | Wiley Post-will Rogers Memorial Airport | Barrow AK |
| BRY | Samuels Field Airport | Bardstown KY |
| BSF | Bradshaw Army Airfield Airport | Camp Pohakuloa HI |
| BST | Belfast Muni Airport | Belfast ME |
| BTA | Blair Muni Airport | Blair NE |
| BTF | Skypark Airport | Bountiful UT |
| BTI | Barter Island Lrrs Airport | Barter Island Lrrs AK |
| BTL | W K Kellogg Airport | Battle Creek MI |
| BTM | Bert Mooney Airport | Butte MT |
| BTN | Britton Muni Airport | Britton SD |
| BTP | Butler County/k W Scholter Field Airport | Butler PA |
| BTR | Baton Rouge Metropolitan, Ryan Field Airport | Baton Rouge LA |
| BTT | Bettles Airport | Bettles AK |
| BTV | Burlington Intl Airport | Burlington VT |
| BTY | Beatty Airport | Beatty NV |
| BUB | Cram Field Airport | Burwell NE |
| BUF | Buffalo Niagara Intl Airport | Buffalo NY |
| BUM | Butler Memorial Airport | Butler MO |
| BUR | Bob Hope Airport | Burbank CA |
| BUU | Burlington Muni Airport | Burlington WI |
| BUY | Burlington-alamance Rgnl Airport | Burlington NC |
| BVI | Beaver County Airport | Beaver Falls PA |
| BVK | Buckland Airport | Buckland AK |
| BVN | Albion Muni Airport | Albion NE |
| BVO | Bartlesville Muni Airport | Bartlesville OK |
| BVS | Skagit Rgnl Airport | Burlington/mount Vernon WA |
| BVU | Boulder City Muni Airport | Boulder City NV |
| BVX | Batesville Rgnl Airport | Batesville AR |
| BVY | Beverly Muni Airport | Beverly MA |
| BW8 | Bullwhacker Airport | Winifred MT |
| BWC | Brawley Muni Airport | Brawley CA |
| BWD | Brownwood Rgnl Airport | Brownwood TX |
| BWG | Bowling Green-warren County Rgnl Airport | Bowling Green KY |
| BWI | Baltimore/washington Intl Thurgood Marshal Airport | Baltimore MD |
| BWP | Harry Stern Airport | Wahpeton ND |
| BXA | George R Carr Memorial Air Fld Airport | Bogalusa LA |
| BXG | Burke County Airport | Waynesboro GA |
| BXK | Buckeye Muni Airport | Buckeye AZ |
| BXM | Brunswick Executive Airport | Brunswick ME |
| BYA | Boundary Airport | Boundary AK |
| BYG | Johnson County Airport | Buffalo WY |
| BYH | Arkansas Intl Airport | Blytheville AR |
| BYI | Burley Muni Airport | Burley ID |
| BYL | Williamsburg-whitley County Airport | Williamsburg KY |
| BYS | Bicycle Lake Aaf Airport | Fort Irwin/barstow CA |
| BYY | Bay City Muni Airport | Bay City TX |
| BZN | Bozeman Yellowstone Intl Airport | Bozeman MT |
