| F3 | FLY | Flyme | |
| F4 | NBK | Albarka Air | |
| F5 | ACY | 679 | Archana Airways |
| F5 | COZ | 447 | Cosmic Air |
| F6 | FCC | 425 | First Cambodia Airlines |
| F6 | CJG | Zhejiang Airlines | |
| F7 | VRE | Volare | |
| F7 | BBO | Flybaboo | |
| FA | SFR | 640 | Safair |
| FB | FBF | 340 | Fine Air Services |
| FB | LZB | Bulgaria Air | |
| FC | 553 | Falcon Express Cargo Airline | |
| FC | WBA | Finncomm Airlines | |
| FC | SBY | 859 | TAL Thuringia Airlines |
| FD | CFE | 844 | Cityflyer |
| FD | AIQ | AirAsia Thailand | |
| FE | WCP | Primaris Airlines | |
| FF | TOW | 305 | Tower Air |
| FG | AFG | 255 | Ariana Afghan Airlines |
| FH | FUA | Futura International Airways | |
| FI | ICE | 108 | Icelandair Cargo |
| FJ | FJI | 260 | Air Pacific |
| FK | WAF | Flamenco Airways | |
| FK | WTA | 858 | Africa West |
| FL | MTE | 332 | AirTran |
| FM | CSH | 774 | Shanghai Airlines |
| FN | RGL | Regional Airlines (Morocco) | |
| FQ | ARU | Air Aruba | |
| FR | RYR | 224 | Ryanair |
| FS | STU | 278 | STAF Airlines |
| FT | FTI | 727 | Fly FTI |
| FT | SRH | Siem Reap Airways International | |
| FU | LIT | 659 | Air Littoral |
| FV | VIV | 728 | VIVA Air |
| FV | PLK | Pulkovo Airlines | |
| FV | SDM | 195 | Rossiya Airlines |
| FW | IBX | Ibex Airlines | |
| FX | FDX | 023 | FedEx Express |
| FZ | BBG | Alisea Airlines |