| 1 | FLE | Fly European Airlines | IATA: E7, Callsign: Eurobuzz, Desinator E7* recalled by IATA | S | AVCODES |
| 2 | FLE | Flight East | Callsign: Flight East, | USA | AVCODES |
| 3 | FLE | Flair Airlines Ltd | IATA: F8, Callsign: Flair, | CDN | AVCODES |
| 4 | FLE | Flair Airlines | | | ICAO1 |
| 5 | FLE | Fleischmann Modell Railway | | X | TRAFFIC |
| 6 | FLEA | FLETCHER, ALLEN TRANSPORT | | | SCAC3 |
| 7 | FLEC | FLEENOR CO INC | | | SCAC3 |
| 8 | FLEC | FLEENOR COMPANY INC | | | SCAC4 |
| 9 | FLED | FLEEGE DISTRIBUTING CO | | | SCAC3 |
| 10 | FLED | FAST LANE EXPRESS DELIVERY | | | SCAC4 |
| 11 | FLEE | FLEET CARRIER CORPORATION | | | SCAC3 |
| 12 | FLEE | FLEET SOURCE INC | | | SCAC4 |
| 13 | FLEET | Fleet Aircraft | | CDN | TRAFFIC |
| 14 | FLEF | FOUR LANE EXPRESS INC | | | SCAC3 |
| 15 | FLEG | FLEGEL TRANSFER CO | | | SCAC3 |
| 16 | FLEH | FLEMING-SHAW TRANSFER AND STORAGE | | | SCAC3 |
| 17 | FLEI | FLEMMING TRANSFER COMPANY | | | SCAC3 |
| 18 | FLEK | FLETCHER, JOHN K TRUCKING | | | SCAC3 |
| 19 | FLEK | FLETCHER TRUCKING LLC | | | SCAC4 |
| 20 | FLEL | FLEET LINE INC | | | SCAC3 |
| 21 | FLEL | FILTROS ELECTRONICOS S A DE C V (MX | | | SCAC4 |
| 22 | FLEN | FLETCHER TRUCKING INC | | | SCAC3 |
| 23 | FLEN | | City: Flensburg | D | TRAFFIC |
| 24 | FLEO | FLETCHER, CLYDE T | | | SCAC3 |
| 25 | FLEO | FLAGSHIP EXPRESS INC | | | SCAC4 |
| 26 | FLEP | FLETCHER EQUIPMENT CO | | | SCAC3 |
| 27 | FLEP | FAST LANE EXPRESS | | | SCAC4 |
| 28 | FLEQ | FLEET DISTRIBUTION FREIGHT | | | SCAC3 |
| 29 | FLES | FLEISHAUER, LYNN D | | | SCAC3 |
| 30 | FLES | FLETES ESQUER SA DE CV | | | SCAC4 |
| 31 | FLET | FLEET TRANSPORT COMPANY INC | | | SCAC3 |
| 32 | FLET | FLETCHER, MAX TRUCKING | | | SCAC4 |
| 33 | FLETT | Flettner: Anton Flettner Flugzeugbau GmbH | German helicopter and autogyro manufacturer during World War II, founded by Anton Flettner | D | TRAFFIC |
| 34 | FLEW | FLEETWOOD TRANSPORTATION CORP | | | SCAC3 |
| 35 | FLEX | RailLease Inc. | 1/1994-7/2005 (not listed) | | NAKINA |
| 36 | FLEX | RailLease Inc. | 1/94-7/2000 | | NRHS |
| 37 | FLEX | RAILLEASE, INC. | | | PWRC |
| 38 | FLEX | RailLease Inc. | | | RSRV |
| 39 | FLEX | RAILLEASE, INC. | | | SCAC4 |
| 40 | FLEX | Flensburg-Express | | D | TRAFFIC |
