| T | Tên hãng hàng không | Websites |
| TA | Taca | TA |
| TE | Flylal | TE |
| TG | Thaï Airways | TG |
| TJ | Tans Peru | TJ |
| TJS | Tyrolean Airways | TJS |
| TK | Turkish Airlines | TK |
| TM | LAM Mozambique | TM |
| TOM | Thomsonfly | TOM |
| TP | TAP- Portugal | TP |
| TR | Tiger Air | TR |
| TS | Air Transat | TS |
| TU | Tunis Air | TU |
| TX | Air Caraibes | TX |
| TY | Iberworld | TY |
| T3 | Eastern Airways | T3 |
| T4 | Virgin Express | T4 |
| T6 | Tavrey Air | T6 |
| T7 | Twin Jet | T7 |
| U | ||
| UA | United Airlines | UA |
| UB | Myanmar Airways | UB |
| UC | Ladeco | UC |
| UD | Hex Air | UD |
| UG | Tuninter | UG |
| UL | Srilankan | UL |
| UM | Air Zimbabwe | UM |
| UN | Transaero | UN |
| UP | Bahamas Air | UP |
| US | Us Air | US |
| UU | Air Austral | UU |
| UX | Air Europa | UX |
| UY | Cameroon Airlines CO. | UY |
| U3 | Travelair | U3 |
| U6 | Ural Airlines | U6 |
| U8 | Armavia | U8 |
| V | ||
| VA | Volare Airlines | VA |
| VE | Avensa | VE |
| VIK | Viking Airlines | VIK |
| VN | Vietnam Airlines | VN |
| VP | Vasp | VP |
| VR | TACV | VR |
| VS | Virgin Atlantic | VS |
| VT | Air Tahiti | VT |
| VU | Air Ivoire | VU |
| VW | Aeromar | VW |
| VY | Vueling Air | VY |
| V3 | Carpatair | V3 |
| V7 | Air Sénégal | V7 |
| W | ||
| WF | Wideroe | WF |
| WH | China Northwest | WH |
| WL | Aeroperlas | WL |
| WN | Southwest Airlines | WN |
| WP | Aloha Airlines | WP |
| WR | Royal Tongan | WR |
| WT | Nigeria Airways | WT |
| WY | Oman Air | WY |
| WW | BMI Baby | WW |
| WX | City Jet | WX |
| WZ | West African Airl. | WZ |
| W5 | Mahan | W5 |
| X | ||
| XG | Air Mali | XG |
| XJ | Mesaba Airlines | XJ |
| XK | Corse Méditerranée | XK |
| XO | China Xinjiang | XO |
| X5 | Afrique Airlines | X5 |
| Y | ||
| YM | Montenegro Airlines | YM |
| YS | Régional | YS |
| YT | Air Togo | YT |
| YW | Air Nostrum | YW |
| Y9 | Kish Air | Y9 |
| Z | ||
| ZB | Monarch Airlines | ZB |
| ZC | Royal Swazi | ZC |
| ZI | Aigle Azur | ZI |
| ZL | Hazelton Airlines | ZL |
| ZS | Azzurra Air | ZS |
| ZU | Freedom Air | ZU |
| Z2 | Styrian Spirit | Z2 |
| Z4 | Zoom Airlines | Z4 |
| Z5 | GMG Airlines | Z5 |
| 2J | Air Burkina | 2J |
| 2L | Helvetic airways | 2L |
| 2M | Moldavian Airlines | 2M |
| 2U | Atlas Jet | 2U |
| 3Q | China Yunnan Airl. | 3Q |
| 3U | Sichuan Airlines | 3U |
| 3W | EuroManx | 3W |
| 4G | Shenzhen Airlines | 4G |
| 4U | Germanwings | 4U |
| 4Y | Yute Air Alaska | 4Y |
| 5J | Cebu Pacific | 5J |
| 5R | Karthago Airlines | 5R |
| 5Y | Isles of Scilly Skybus | 5Y |
| 6A | Aviacsa | 6A |
| 6E | City Air | 6E |
| 6Q | Slovak Airlines | 6Q |
| 7B | Kras Air | 7B |
| 7H | Era Aviation | 7H |
| 7J | Tajikistan Airlines | 7J |
| 7L | Sun d’Or | 7L |
| 8A | Atlas Blue | 8A |
| 8B | Caribbean Star | 8B |
| 8I | My Way | 8I |
| 8Q | Onur Air | 8Q |
| 8U | Afriqiyah Airways | 8U |
| 9P | Pelangi Air | 9P |
| 9U | Air Moldo | 9U |
Category: Góc học tập, Thư viện