| 1 | FLS | Flying Fast, S.A. de C.V. | Callsign: Rapidos, | MEX | AVCODES |
| 2 | FLS | F'Airlines B.V. | IATA: 4X, Callsign: Fairline, Designator 4X recalled by IATA | NL | AVCODES |
| 3 | FLS | Fairlines | | | ICAO1 |
| 4 | FLS | FLORIDA SPECIALIZED CARRIERS INTERS | | | SCAC4 |
| 5 | FLS | Family Lines System | Real: FL | USA | TRAFFIC |
| 6 | FLSA | FALSETTA TRUCKING | | | SCAC3 |
| 7 | FLSA | FLETES SAMA | | | SCAC4 |
| 8 | FLSB | FLORIDA STAGE LINES INC | | | SCAC3 |
| 9 | FLSC | FLEET SERVICE CO INC | | | SCAC3 |
| 10 | FLSC | FREIGHT LAND SKY INC | | | SCAC4 |
| 11 | FLSD | FLESCH, DONALD A | | | SCAC3 |
| 12 | FLSD | FLETES RAPIDO HPE | | | SCAC4 |
| 13 | FLSE | FULL SERVICES ENTERPRISES INC | | | SCAC3 |
| 14 | FLSF | FLEETSTAFF INC | | | SCAC3 |
| 15 | FLSH | FLASH EXPRESS CO INC | | | SCAC3 |
| 16 | FLSH | FLASH EXPRESS INC | | | SCAC4 |
| 17 | FLSI | F L S TARANSPORTATION INC | | | SCAC3 |
| 18 | FLSI | FLORSTAR SALES INC | | | SCAC4 |
| 19 | FLSJ | F L S TRANSPORTATION SERVICES INC | | | SCAC4 |
| 20 | FLSK | FORLER, STEVE TRUCKING INC | | | SCAC4 |
| 21 | FLSL | FORIDA STEEL CORP | | | SCAC3 |
| 22 | FLSL | FORIDA STEEL CORP | | | SCAC4 |
| 23 | FLSM | FEILS OIL COMPANY INC | | | SCAC4 |
| 24 | FLSO | FRONTIER LINER SERVICES, INC. | | | SCAC3 |
| 25 | FLSO | FLORES, ROBERTO | | | SCAC4 |
| 26 | FLSP | F L C TRANSPORT | | | SCAC3 |
| 27 | FLSP | Ferrovia Lana di Sopra-Postal | | I | TRAFFIC |
| 28 | FLSQ | FLETES ETN | | | SCAC4 |
| 29 | FLSR | FLESSNER BROS | | | SCAC3 |
| 30 | FLSR | FLESSNER BROS | | | SCAC4 |
| 31 | FLSS | FLOSS TRUCKING | | | SCAC3 |
| 32 | FLST | FIELDS TRUCKING | | | SCAC3 |
| 33 | FLSU | LLC ENERGOSTROYBISNES | | | SCAC4 |
| 34 | FLSV | FLEET SERVICES CORP | | | SCAC3 |
| 35 | FLSW | FREIGHT LIME AND SAND HAULING INC | | | SCAC4 |
| 36 | FLSX | Silver Star Enterprises, Inc. | 7/2005 (not listed) | | NAKINA |
| 37 | FLSX | Great Miami, Inc. | 1/1994 (not listed); added 1/1997; eliminated 4/2000; 7/2000 (not listed) | | NAKINA |
| 38 | FLSX | Great Miami, Inc. | 1/94; added 1/97; eliminated 4/2000; 7/2000 | | NRHS |
| 39 | FLSX | *GREAT MIAMI, INC. | | | PWRC |
| 40 | FLSX | +SILVER STAR ENTERPRISES, INC. | | | PWRC |
| 41 | FLSX | Great Miami (Silver Star Enterprises) | | | RSRV |
| 42 | FLSX | SILVER STAR ENTERPRISES LTD | | | SCAC4 |
| 43 | FLSY | FLOSA US LOGISTICS INC | | | SCAC4 |
| 44 | FLSZ | FLORIDA STEEL | | | PWRC |
