| B Airlines | |||
| BAC Express Airlines Ltd | RPX | ||
| Bahamasair | UP | BHS | 111 |
| Baikal | X3 | BKL | 483 |
| Bakoji Airlines Services Ltd | OGJ | ||
| Balair/CTA Ltd | BB | BBB | |
| Bali Air | BLN | ||
| Balkan Bulgarian Airlines | LZ | LAZ | 196 |
| Baltia Airlines Inc | BTL | ||
| Baltic International Airlines | TI | BIA | |
| Bangkok Airways | PG | BKP | 829 |
| Bankair | BKA | ||
| Barbora Fly | |||
| Barnaul State Aviation Enterprise | |||
| Baron Aviation Services | BVN | ||
| BASE Airlines | 5E | BRO | |
| Baseops Int´l | 3Y | XBO | |
| Bashkir Airlines | V9 | BTC | 940 |
| Basler Airlines (Basler Flight Services) | BFC | ||
| Batagai Aviation Enterprise | |||
| Batavia Air | 7P | BTV | |
| BAX Global | 8W | ||
| Bayu Indonesia Air | BYU | ||
| BCM Airlines SA | TY | BCM | |
| Bearskin Airlines | JV | BLS | 632 |
| Belair Belarussian Airlines | BLI | ||
| Belavia | B2 | BRU | 628 |
| Belle Air | LZ | LBY | |
| Bellview Airlines | B3 | BLV | 208 |
| Bemidji Airlines | CH | BMJ | |
| BenAir | HAX | ||
| Benin Golf Air | A8 | BGL | 719 |
| Beriev TANTK Airline | NTK | ||
| Berjaya Air | J8 | BVT | 801 |
| Berry Aviation | BYA | ||
| BETA Cargo - Brasilian Express Transportes Aéreos | BET | 376 | |
| BH Air | BGH | ||
| Bhoja Airlines | B4 | BHO | 896 |
| Biman Bangladesh Airlines | BG | BBC | 997 |
| Binter Canarias | NT | IBB | 474 |
| Birgenair | BHY | ||
| Bismillah Airlines | 5Z | BML | 541 |
| Blue Airlines | BUL | ||
| Blue Dart Aviation | BZ | BDA | 620 |
| Blue Panorama Airlines | BV | BPA | 004 |
| Blue Sky Carrier | YM | BSC | |
| Blue Wings | QW | BWG | 049 |
| Blue1 | KF | BLF | 142 |
| Bluebird Cargo | BF | BBD | 290 |
| bmi Cargo | BD | BMA | 236 |
| bmibaby | BMI | ||
| Bond Helicopters | BND | ||
| Bosphorus Airways | 6Z | BSP | |
| Botir Avia | BTR | ||
| Bouraq Airlines | BO | BOU | 666 |
| BRA - Transportes Aeroes | BRB | ||
| Bright Air | C6 | BHT | 116 |
| Bright Aviation Services | BRW | ||
| Bringer Air Cargo | E6 | BRC | 417 |
| Brit Air | DB | BZH | 750 |
| Britannia Airways | BY | BAL | 754 |
| Britannia Airways AB | 6B | BLX | 951 |
| British Air Ferries | BAF | ||
| British Airways | BA | BAW | 125 |
| British Airways CitiExpress | BA | MNX | 916 |
| British International Helicopters | UR | BIH | |
| British Jet | FHE | ||
| British Mediterranean Airways | KJ | LAJ | 436 |
| British Regional Airlines | BRT | ||
| British World Airlines | VF | BWL | 762 |
| Brussels Cargo | SN | DAT | 082 |
| Bryansk Air Enterprise | ZXC | ||
| Brymon Airways | BC | BRY | 657 |
| BSL Airlines | BSL | ||
| Buffalo Air | BV | BVA | |
| Buffalo Airways | J4 | BFL | |
| Bulgaria Air | FB | LZB | |
| Bulgarian Air Charter | BUC | ||
| Bulgarian Flying Cargo | BFB | ||
| Business Air | II | GNT | 593 |
| Business Express (Delta Connection) | HL | GAA | 357 |
| Butler Aircraft | |||
| Buzz | UK | BUZ | |
| Bykovo Avia | BKU |