99 airports
| IATA | Airport Name | City | Country |
|---|---|---|---|
| UAH | Ua Huka Airport | Ua Huka | 🇵🇫 French Polynesia |
| UAP | Ua Pou Airport | Ua Pou | 🇵🇫 French Polynesia |
| UAX | Uaxactun Airport | Uaxactun | 🇬🇹 Guatemala |
| QUB | Ubari Airport | Ubari | 🇱🇾 Libya |
| UBT | Ubatuba Gastão Madeira State Airport | Ubatuba | 🇧🇷 Brazil |
| UBJ | Yamaguchi Ube Airport | Ube | 🇯🇵 Jepun |
| UBA | Mário de Almeida Franco Airport | Uberaba | 🇧🇷 Brazil |
| UDI | Ten. Cel. Aviador César Bombonato Airport | Uberlândia | 🇧🇷 Brazil |
| UBP | Ubon Ratchathani Airport | Ubon Ratchathani | 🇹🇭 Thailand |
| UCZ | Uchiza Airport | Uchiza | 🇵🇪 Peru |
| UDR | Maharana Pratap Airport | Udaipur | 🇮🇳 India |
| UDE | Volkel Air Base | Uden | 🇳🇱 Netherlands |
| UTH | Udon Thani International Airport | Udon Thani | 🇹🇭 Thailand |
| UFA | Ufa International Airport | Ufa | 🇷🇺 Russia |
| UGS | Ugashik Airport | Ugashik | 🇺🇸 United States |
| UHE | Kunovice Airport | Uherské Hradiště | 🇨🇿 Czechia |
| UGO | Uige Airport | Uige | 🇦🇴 Angola |
| UJU | Uiju Airport | Uiju | 🇰🇵 North Korea |
| UJE | Ujae Atoll Airport | Ujae Atoll | 🇲🇭 Marshall Islands |
| UCT | Ukhta Airport | Ukhta | 🇷🇺 Russia |
| UKI | Ukiah Municipal Airport | Ukiah | 🇺🇸 United States |
| UKA | Ukunda Airstrip | Ukunda | 🇰🇪 Kenya |
| PYC | Playón Chico Airport | Ukupseni | 🇵🇦 Panama |
| ULN | Buyant-Ukhaa International Airport | Ulaanbaatar | 🇲🇳 Mongolia |
| UBN | Ulaanbaatar Chinggis Khaan International Airport | Ulaanbaatar (Sergelen) | 🇲🇳 Mongolia |
| ULO | Ulaangom Airport | Ulaangom | 🇲🇳 Mongolia |
| UUD | Baikal International Airport | Ulan Ude | 🇷🇺 Russia |
| HLH | Ulanhot Yilelite Airport | Ulanhot | 🇨🇳 China |
| UCB | Ulanqab Jining Airport | Ulanqab | 🇨🇳 China |
| ULZ | Donoi Airport | Uliastai | 🇲🇳 Mongolia |
| USN | Ulsan Airport | Ulsan | 🇰🇷 South Korea |
| YHI | Ulukhaktok Holman Airport | Ulukhaktok | 🇨🇦 Kanada |
| ULD | Prince Mangosuthu Buthelezi Airport | Ulundi | 🇿🇦 South Africa |
| ULX | Ulusaba Airport | Ulusaba | 🇿🇦 South Africa |
| ULV | Ulyanovsk Baratayevka Airport | Ulyanovsk | 🇷🇺 Russia |
| UMC | Umba Airport | Umba | 🇵🇬 Papua New Guinea |
| UME | Umeå Airport | Umeå | 🇸🇪 Sweden |
| UMT | Umiat Airport | Umiat | 🇺🇸 United States |
| YUD | Umiujaq Airport | Umiujaq | 🇨🇦 Kanada |
| UMU | Orlando de Carvalho Airport | Umuarama | 🇧🇷 Brazil |
| UNA | Una-Comandatuba Airport | Una | 🇧🇷 Brazil |
| UNK | Unalakleet Airport | Unalakleet | 🇺🇸 United States |
| DUT | Tom Madsen (Dutch Harbor) Airport | Unalaska | 🇺🇸 United States |
| UDA | Undara Airport | Undara | 🇦🇺 Australia |
| BAJ | Bali Airport | Unea Island | 🇵🇬 Papua New Guinea |
| UNC | Unguía Airport | Unguía | 🇨🇴 Colombia |
| USC | Union County, Troy Shelton Field | Union | 🇺🇸 United States |
| UCY | Everett-Stewart Regional Airport | Union City | 🇺🇸 United States |
| UGL | Union Glacier Blue-Ice Runway | Union Glacier | 🇦🇶 Antarctica |
| UNI | Union Island International Airport | Union Island | 🇻🇨 Saint Vincent and the Grenadines |
| RND | Randolph Air Force Base | Universal City | 🇺🇸 United States |
| UVI | José Cleto Airport | União da Vitória | 🇧🇷 Brazil |
| WOK | Uon Quen Airport | Uonquén | 🇻🇪 Venezuela |
| UPL | Upala Airport | Upala | 🇨🇷 Costa Rica |
| JUV | Upernavik Airport | Upernavik | 🇬🇱 Greenland |
| UPR | Upiara Airport | Upiara | 🇵🇬 Papua New Guinea |
| UTN | Upington Airport | Upington | 🇿🇦 South Africa |
| CCB | Upland-Cable Airport | Upland | 🇺🇸 United States |
| WZQ | Urad Middle Banner Airport | Urad Middle Banner | 🇨🇳 China |
| URA | Manshuk Mametova International Airport | Uralsk | 🇰🇿 Kazakhstan |
| YBE | Uranium City Airport | Uranium City | 🇨🇦 Kanada |
| URJ | Uray Airport | Uray | 🇷🇺 Russia |
| UEN | Urengoy Airport | Urengoy | 🇷🇺 Russia |
| UGC | Urgench International Airport | Urgench | 🇺🇿 Uzbekistan |
| URN | Urgun Airport | Urgun | 🇦🇫 Afghanistan |
| URM | Uriman Airport | Urimán | 🇻🇪 Venezuela |
| OMH | Urmia Airport | Urmia | 🇮🇷 Iran |
| URU | Uroubi Airport | Uroubi | 🇵🇬 Papua New Guinea |
| URR | Urrao Airport | Urrao | 🇨🇴 Colombia |
| UPN | Uruapan - Licenciado y General Ignacio Lopez Rayon International Airport | Uruapan | 🇲🇽 Mexico |
| RPU | Urucu Airport | Urucu | 🇧🇷 Brazil |
| URG | Rubem Berta Airport | Uruguaiana | 🇧🇷 Brazil |
| UZR | Urzhar Airport | Urzhar | 🇰🇿 Kazakhstan |
| USL | Useless Loop Airport | Useless Loop | 🇦🇺 Australia |
| OUI | Ouessant Airport | Ushant | 🇫🇷 France |
| USJ | Usharal Airport | Usharal | 🇰🇿 Kazakhstan |
| USH | Ushuaia - Malvinas Argentinas International Airport | Ushuaia | 🇦🇷 Argentina |
| USK | Usinsk Airport | Usinsk | 🇷🇺 Russia |
| UIK | Ust-Ilimsk Airport | Ust-Ilimsk | 🇷🇺 Russia |
| UKK | Oskemen International Airport | Ust-Kamenogorsk (Oskemen) | 🇰🇿 Kazakhstan |
| UKX | Ust-Kut Airport | Ust-Kut | 🇷🇺 Russia |
| UKG | Ust-Kuyga Airport | Ust-Kuyga | 🇷🇺 Russia |
| UMS | Ust-Maya Airport | Ust-Maya | 🇷🇺 Russia |
| USR | Ust-Nera Airport | Ust-Nera | 🇷🇺 Russia |
| UTS | Ust-Tsylma Airport | Ust-Tsylma | 🇷🇺 Russia |
| OGM | Ogobsucum Airport | Ustupu | 🇵🇦 Panama |
| UTU | Ustupu Airport | Ustupu | 🇵🇦 Panama |
| UII | Utila Airport | Utila Island | 🇭🇳 Honduras |
| UTK | Utirik Airport | Utirik Island | 🇲🇭 Marshall Islands |
| UTO | Indian Mountain LRRS Airport | Utopia Creek | 🇺🇸 United States |
| BRW | Wiley Post Will Rogers Memorial Airport | Utqiaġvik | 🇺🇸 United States |
| UTI | Utti Air Base | Utti / Valkeala | 🇫🇮 Finland |
| RFP | Raiatea Airport | Uturoa | 🇵🇫 French Polynesia |
| JQA | Qaarsut Airport | Uummannaq | 🇬🇱 Greenland |
| UVA | Garner Field | Uvalde | 🇺🇸 United States |
| UVO | Uvol Airport | Uvol | 🇵🇬 Papua New Guinea |
| QUO | Akwa Ibom International Airport | Uyo | 🇳🇬 Nigeria |
| UDJ | Uzhhorod International Airport | Uzhhorod | 🇺🇦 Ukraine |
| USQ | Uşak Airport | Uşak | 🇹🇷 Turkiye |