| 1 | TWA | Trans World Airlines, Inc. | IATA: TW, Callsign: TWA, IATA Prefix: 015, Merged into American Airlines w.e.f. 02 December 2001. | USA | AVCODES |
| 2 | TWA | Trans World Airlines | IATA: TW | | ICAO1 |
| 3 | TWA | Trans World Airlines | | USA | TRAFFIC |
| 4 | TWA | Transwaggon AG, Zug | | CH | VKM |
| 5 | TWAA | TWO RIVERS TRANSPORTATION LLC | | | SCAC4 |
| 6 | TWAF | TWX CORPORATION | | | SCAC4 |
| 7 | TWAG | Transwaggon | | S | TRAFFIC |
| 8 | TWAH | TIPPETT, WAYNE | | | SCAC4 |
| 9 | TWAJ | TRADE WINDS TRANSIT INC | | | SCAC4 |
| 10 | TWAK | TWIN TOOLING INC | | | SCAC4 |
| 11 | TWAL | TRANS WORLD SOLUTIONS | | | SCAC4 |
| 12 | TWAM | TWIN ANCHORS MARINE (1977) LTD | | | SCAC4 |
| 13 | TWAQ | THREE WAY LOGISTICS INC | | | SCAC4 |
| 14 | TWAR | Tramwaje Warszawskie Sp. z o. o. | | PL | TRAFFIC |
| 15 | TWAT | TRENDWAY TRANSPORTATION SERVICES IN | | | SCAC4 |
| 16 | TWAU | TAYLOR-WHARTON AMERICA INC | | USA | BIC |
| 17 | TWAW | TINOS HAULING & TOWING INC | | | SCAC4 |
| 18 | TWAY | TRANSWAY TRANSPORT | | | SCAC4 |
| 19 | TWAY | Trailways | Trailways is a membership-based marketing organization comprised of privately owned and operated transportation companies | USA | TRAFFIC |
