| City | Country | Airport Count |
|---|---|---|
| Ua Huka | French Polynesia | 1 |
| Ua Pou | French Polynesia | 1 |
| Ualik | Uzbekistan | 1 |
| Uauá | Brazil | 1 |
| Uaxactun | Guatemala | 1 |
| Ubá | Brazil | 1 |
| Ubari | Libya | 1 |
| Ubatuba | Brazil | 1 |
| Ubay | Philippines | 1 |
| Ube | Japan | 1 |
| Uberaba | Brazil | 7 |
| Uberlândia | Brazil | 5 |
| Ubinskoye | Russia | 1 |
| Ubon Ratchathani | Thailand | 1 |
| Ubrub-Papua Island | Indonesia | 1 |
| Ucharonidge Station | Australia | 1 |
| Uchiza | Perú | 1 |
| Uchkuduk | Uzbekistan | 1 |
| Uchkurgan | Uzbekistan | 1 |
| Udaipur | India | 1 |
| Udbina | Croatia | 1 |
| Uddevalla | Sweden | 2 |
| Uden | Netherlands | 1 |
| Udhailiyah | Saudi Arabia | 1 |
| Udine | Italy | 1 |
| City | Country | Airport Count |
| Udo Island | South Korea | 1 |
| Udomxay | Laos | 1 |
| Udon Thani | Thailand | 1 |
| Udskoye | Russia | 1 |
| Udurgi | Uzbekistan | 1 |
| Uebigau-Wahrenbrück | Germany | 1 |
| Uelzen | Germany | 1 |
| Uetersen | Germany | 1 |
| Ufa | Russia | 3 |
| Ugashik | United States | 2 |
| Ugie | South Africa | 1 |
| Uglich | Russia | 1 |
| Ugolnye Kopi | Russia | 1 |
| Uherské Hradiště | Czechia | 1 |
| Uhi | Honduras | 1 |
| Uige | Angola | 1 |
| Uijeongbu | South Korea | 1 |
| Uiju | North Korea | 1 |
| Uiramutã | Brazil | 19 |
| Uirapuru | Brazil | 2 |
| Uirim-Daero | South Korea | 1 |
| Uis Mine | Namibia | 1 |
| Uitenhage | South Africa | 1 |
| Ujae Atoll | Marshall Islands | 1 |
| Ujjain | India | 1 |