| 1 | BLF | Bulgarian Lucky Flight | Callsign: Lucky Air, | BG | AVCODES |
| 2 | BLF | Bee Line Airlines | Callsign: Beefleet, | USA | AVCODES |
| 3 | BLF | Blue1 Oy | IATA: KF, Callsign: Bluefinn, IATA Prefix: 142, Designator KF recalled by IATA. Sold to CityJet in October 2015. Name changed from Oy Air Botnia AB. ICAO designator changed from KFB. ICAO callsign changed from Botnia | FIN | AVCODES |
| 4 | BLF | Blue1 Oy | Callsign: Bluefinn, Designator KF recalled by IATA. Sold to CityJet in October 2015. Name changed from Oy Air Botnia AB. ICAO designator changed from KFB. ICAO callsign changed from Botnia | FIN | AVCODES |
| 5 | BLF | Blue1 | IATA: KF | | ICAO1 |
| 6 | BLF | Blue1 Oy | | FIN | TRAFFIC |
| 7 | BLFA | BEL FREIGHT SERVICE | | | SCAC3 |
| 8 | BLFA | BLOQUES Y FACHADAS S A DE C V | | | SCAC4 |
| 9 | BLFB | BLUEFIELD TRANSPORT LLC | | | SCAC4 |
| 10 | BLFC | BLUFF CREEK INDUSTRIES | | | SCAC3 |
| 11 | BLFC | BORDERLINE FREIGHT CO | | | SCAC4 |
| 12 | BLFE | BLUE FLASH EXPRESS INCORPORATED | | | SCAC3 |
| 13 | BLFE | BLUE FLASH EXPRESS INCORPORATED | | | SCAC4 |
| 14 | BLFF | BLUE FAST FREIGHT INC | | | SCAC3 |
| 15 | BLFF | BELL FARMS INC | | | SCAC4 |
| 16 | BLFH | BALENSIEFEN, HAROLD | | | SCAC3 |
| 17 | BLFI | BLACKFORD FARMS INC | | | SCAC3 |
| 18 | BLFJ | BORDERLINE LOGISTICS INC | | | SCAC4 |
| 19 | BLFK | BILODEAU, L FILS LTEE | | | SCAC3 |
| 20 | BLFK | BILODEAU, L FILS LTEE | | | SCAC4 |
| 21 | BLFL | BELLEFLOWER AG SERVICE INC | | | SCAC3 |
| 22 | BLFL | BEAR LOGISTICS | | | SCAC4 |
| 23 | BLFM | BLAYLOCKS FARM & RANCH | | | SCAC3 |
| 24 | BLFM | BLAND FARMS LLC | | | SCAC4 |
| 25 | BLFO | BLACK FOX TRANSIT | | | SCAC3 |
| 26 | BLFO | BLF ENTERPRISES LLC | | | SCAC4 |
| 27 | BLFQ | BLACKFORD J F | | | SCAC3 |
| 28 | BLFQ | BLOCK FARMS | | | SCAC4 |
| 29 | BLFS | BALLOG FARMS INC | | | SCAC4 |
| 30 | BLFSK | BAWAG Leasing & Fleet s.r.o. | | SK | VKM |
| 31 | BLFT | BLACKFOOT TRANSFER | | | SCAC3 |
