International airports, regional fields and GA aerodromes — the places every mission starts and ends.

| Company | Type | Location | Codes |
|---|---|---|---|
| Outlaw Flyers Airport | aerodrome | United States | — |
| Outlook Airport | aerodrome | Canada | — |
| Outpost Safaris Airstrip | aerodrome | Namibia | — |
| Out Skerries Airfield | aerodrome | United Kingdom | — |
| Ouvéa Airport | international | France | IATA UVE · ICAO NWWV |
| Ouyen Airport | international | Australia | IATA OYN |
| Ouzinkie Airport | international | United States | IATA KOZ |
| Ovansjö | aerodrome | Sweden | — |
| Ovar Air Base | military airfield | Portugal | ICAO LPOV |
| Ovchepoltsi Airstrip | aerodrome | Bulgaria | — |
| Ovda Airbase | military airfield | Israel | IATA VDA · ICAO LLOV |
| Ovejas Noreste | aerodrome | Colombia |
aerodrome 30,878international 8,351military airfield 1,867private airstrip 1,800heliport 555regional 460
United States 15,232Brazil 2,982Australia 2,025Canada 1,765France 1,355Russia 1,265United Kingdom 1,109South Africa 938Germany 879Colombia 835Italy 718Indonesia 681Argentina 621Ukraine 570Papua New Guinea 536China 489Mexico 478Venezuela 468Spain 414India 411Namibia 376Chile 358Congo - Kinshasa 356South Sudan 331Poland 327Czechia 277New Zealand 250Kenya 242Sweden 222Japan 195Philippines 188Norway 179Botswana 151Portugal
Operators claiming an entry can correct facts, add services and certificates, and mark their page verified. Claiming is free — see a company’s page for the claim link.
| — |
| Ovens Helibase | aerodrome | Australia | — |
| Oventeni Airport | aerodrome | Peru | ICAO SPBT |
| Over Farm Airstrip | aerodrome | United Kingdom | — |
| Overhalla Airstrip | private airstrip | Norway | — |
| Överkalix flygfält | aerodrome | Sweden | ICAO ESNE |
| Överlanda | aerodrome | Sweden | — |
| Overlander Airport | aerodrome | Australia | — |
| Overland-Lohse Field | aerodrome | United States | — |
| Over the Hill Airport | aerodrome | United States | — |
| Over the Top Aviation Airport | aerodrome | United States | — |
| Overton Airport | aerodrome | United States | — |
| Overton Municipal Airport | aerodrome | United States | — |
| Overview Airstrip (CLOSED) | aerodrome | South Africa | — |
| Ovid Airport | aerodrome | United States | — |
| Oviken Airport | aerodrome | Sweden | ICAO ESUO |
| Ovoot Tolgoi Airport | aerodrome | Mongolia | ICAO ZMGT |
| Ovsorok Airstrip | aerodrome | Russia | — |
| Owasco Airport | aerodrome | United States | — |
| Owatonna Municipal Airport | international | United States | IATA OWA · ICAO KOWA |
| Owego Airport (historical) | aerodrome | United States | — |
| Owena Airstrip | aerodrome | Papua New Guinea | ICAO AYWW |
| Owen Air Park | aerodrome | United States | — |
| Owen Brothers Airport | aerodrome | United States | — |
| Owen Field | aerodrome | United States | — |
| Owen Ranches Inc Airport | aerodrome | United States | — |
| Owen Roberts International Airport | international | George Town, Cayman Islands | IATA GCM · ICAO MWCR |
| Owensboro-Daviess County Regional Airport | international | United States | IATA OWB · ICAO KOWB |
| Owens Field | aerodrome | United States | — |
| Owen-Withee Airport | aerodrome | United States | — |
| Owikeno Airstrip | aerodrome | Canada | — |
| Owl Canyon Gliderport | aerodrome | United States | — |
| Owosso Community Airport | aerodrome | United States | ICAO KRNP |
| OWRA club | aerodrome | Taiwan | — |
| Owyhee Airport | aerodrome | United States | — |
| Owyhee Reservoir State Airport | aerodrome | United States | — |
| Oxborrow Ranch Landing Field (historical) | aerodrome | United States | — |
| Oxbow Airport | aerodrome | United States | — |
| Oxbow Airport | aerodrome | Canada | — |