| 1 | SEW | Seaboard World Airlines, Inc. | IATA: SB, Callsign: Seaboard, Merged into Flying Tigers | USA | AVCODES |
| 2 | SEW | Skyward Express Ltd. | IATA: OW, Callsign: Skyward Express, | EAK | AVCODES |
| 3 | SEWA | SEAWAV | | | SCAC4 |
| 4 | SEWC | STEVEN EAST WAY INC | | | SCAC4 |
| 5 | SEWD | SEAWIND | | | SCAC4 |
| 6 | SEWF | SEA WORLD FISHERIES LTD | | | SCAC4 |
| 7 | SEWI | SEAWIND MARINE SA | | | SCAC4 |
| 8 | SEWJ | S & E NEWLIFE TRUCKING | | | SCAC4 |
| 9 | SEWP | SUPERIOR ENGINEERED WOOD PRODUCTS | | | SCAC4 |
| 10 | SEWW | SOUTH EAST WORLD WIDE LTD | | | SCAC4 |
| 11 | SEWY | SEAWAY EXPRESS INC | | | SCAC4 |
