| Airline Name | ICAO | IATA | Callsign | Country |
| Facts Air | FCS | Mexico | ||
| Fair | FRI | FW | Japan | |
| Fairlines | France | |||
| Fairways | FWY | United States | ||
| Falcon Air | FCN | IH | FALCON | Sweden |
| Falcon Air Express | FAO | 6F | PANTHER | United States |
| Falcon Express Cargo Airlines | FC | United Arab Emirates | ||
| Family Airlines | United States | |||
| Far Eastern Air Transport | FEA | EF | Taiwan | |
| Farnair Europe | FNE | Netherlands | ||
| Farnair Switzerland | FAT | Switzerland | ||
| FaroeJet | RCK | F6 | ROCKROSE | Faroe Islands |
| Faucett | CFP | CF | Peru | |
| FDA - Fuji Dream Airlines | Japan | |||
| Federal Express (FedEx) | FDX | FX | United States | |
| Federico II Airways | FDE | 2D | Italy | |
| Feeder Airlines | Sudan | |||
| Felix Airways | FXX | FO | Yemen | |
| Filder Air Service Airlines | NRX | M3 | Germany | |
| Finnair | FIN | AY | FINNAIR | Finland |
| Finncomm Airlines | FC | Finland | ||
| Firefly | FFM | FY | Malaysia | |
| First Air | FAB | 7F | FIRST AIR | Canada |
| First Cambodia Airlines | FCC | F6 | Cambodia | |
| First Choice Airways | FCA | DP | JETSET | United Kingdom |
| First Flight | India | |||
| Fischer Air | FFR | 8F | Czech Republic | |
| Fischer Air Polska | Poland | |||
| Flagship Airlines (American Eagle) | FLG | 8N | United States | |
| Flair Aviation | Germany | |||
| Flash Airlines | FSH | Egypt | ||
| Flight Director | United States | |||
| Flight Options | OPT | United States | ||
| Flight West Airlines | FWQ | YC | UNITY | Australia |
| Flightlease | Unknown | |||
| Flightline | FLT | B5 | FLIGHTLINE | United Kingdom |
| Flitestar Airways | South Africa | |||
| Florida Express | FLX | United States | ||
| Florida West International Airways | FWL | RF | United States | |
| Flugfelag Islands Air Iceland | FXI | NY | FAXI | Iceland |
| Flugfelag Nordurlands (Norlandair) | FNA | NY | FAXI | Iceland |
| Flugleidir (Icelandair Domestic) | Iceland | |||
| Fly Air | FLM | F2 | Turkey | |
| Fly Asian Xpress (FAX) | XFA | D7 | FAX AIR | Malaysia |
| Fly Europa | FEE | United Kingdom | ||
| Fly Excellent | FXL | FLY EXCELLENT | Sweden | |
| Fly FTI | FTI | BZ | Germany | |
| Fly International Airways | NVJ | Tunisia | ||
| Fly Niue Airlines | Niue | |||
| Fly540 | FFV | 5H | SWIFT TANGO | Kenya |
| Flyant Cargo | Spain | |||
| Flybe | BEE | BE | JERSEY | United Kingdom |
| flydubai | FDB | FZ | FLYDUBAI | United Arab Emirates |
| Flyglobespan | GSM | Y2 | GLOBESPAN | United Kingdom |
| Flying Carpet | FCR | 7Y | FLYING CARPET | Lebanon |
| Flying Colours Airlines | FCL | MT | United Kingdom | |
| Flying Enterprise | FLY | F3 | Sweden | |
| Flying Finn Airways | FFW | Finland | ||
| Flying Tiger Line | FTL | FT | TIGER | United States |
| Flyjet | FJE | United Kingdom | ||
| FlyLAL | LIL | TE | LITHUANIAN | Lithuania |
| FlyLAL Charters | LLC | FLYLAL CHARTERS | Lithuania | |
| FlyMe | FLY | SH | FLYBIRD | Sweden |
| FlyScand | Sweden | |||
| FM Services Aviation | United States | |||
| Focus Air | United States | |||
| Ford Motor | FOB | FD | United Kingdom | |
| Ford Motor Company | FRD | United States | ||
| Formosa Airlines | FOS | VY | Taiwan | |
| Formula One Management | FOR | United Kingdom | ||
| Fortunair | FXC | Canada | ||
| Foshing Airlines | FHA | Taiwan | ||
| Freebird Airlines | FHY | Turkey | ||
| Freedom Air International | FOM | SJ | New Zealand | |
| Freedom Airlines | FDM | F8 | United States | |
| Freedom Airways | Cyprus | |||
| Freeport McMoran | United States | |||
| French Air Force | France | |||
| Fresh Air | FRR | Nigeria | ||
| Frontier Airlines | FFT | F9 | FRONTIER FLIGHT | United States |
| Frontier Airlines | FRONTIER | United States | ||
| Fuerza Aerea Argentina | FAG | Argentina | ||
| Funair Corporation | United States | |||
| Futura | FUA | FH | Spain |