| IATA | ICAO24 | MAP | NAME | CITY | COUNTRY | TIMEZONE | LATITUDE | LONGITUDE | RUNWAY | ELEVATION | WEBSITE | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OKT | UWUK | Oktiabrskij | Oktiabrskij | Russian Federation | Asia/Yekaterinburg | 54.440 | 53.388 | 115 | ||||
| OIR | RJEO | Okushiri | Okushiri | Japan | Asia/Tokyo | 42.072 | 139.433 | 800 | 49 | |||
| OFJ | BIOF | Olafsfjordur | Olafsfjordur | Iceland | Atlantic/Reykjavik | 66.083 | -18.667 | 700 | 10 | |||
| OAN | MHOA | Olanchito | Olanchito | Honduras | America/Tegucigalpa | 15.500 | -86.567 | 711 | 220 | |||
| OVR | LPOV | Olavarria | Olavarria | Argentina | America/Argentina/Buenos_Aires | -35.700 | -63.000 | |||||
| YOC | CYOC | Old Crow | Old Crow | Canada | America/Whitehorse | 67.571 | -139.839 | 1524 | 251 | |||
| YOC | CYOC | Old Crow | Old Crow | Canada | America/Whitehorse | 67.571 | -139.839 | 1524 | 251 | |||
| ZFB | None | Old Fort Bay | Old Fort Bay | Canada | America/Blanc-Sablon | 51.583 | -57.917 | |||||
| ZFB | None | Old Fort Bay | Old Fort Bay | Canada | America/Blanc-Sablon | 51.583 | -57.917 | |||||
| OLH | None | Old Harbor SPB | Old Harbor | United States | America/Anchorage | 57.218 | -153.270 | 610 | 17 | |||
| OLD | KOLD | Old Town | Old Town | United States | America/New_York | 44.953 | -68.674 | 1219 | 38 | |||
| NEN | KNEN | Olf Usn | Whitehouse | United States | America/New_York | 30.350 | -81.883 | 2438 | 30 | |||
| KOY | KKOY | Olga Bay SPB | Olga Bay | United States | America/Anchorage | 57.161 | -154.230 | |||||
| OLV | KOLV | Olive Branch Arpt | Olive Branch | United States | America/Chicago | 34.979 | -89.787 | 1646 | 123 | |||
| ONY | KONY | Olney | Olney | United States | America/Chicago | 33.351 | -98.819 | 1676 | 389 | |||
| OLY | KOLY | Olney-Noble | Olney | United States | America/Chicago | 38.722 | -88.176 | 1189 | 147 | |||
| OLO | LKOL | Olomouc | Olomouc | Czech Republic | Europe/Prague | 49.587 | 17.204 | |||||
| OLJ | NVSZ | Olpoi | Olpoi | Vanuatu | Pacific/Efate | -14.881 | 166.558 | |||||
| OLQ | None | Olsobip | Olsobip | Papua New Guinea | Pacific/Port_Moresby | -5.383 | 141.500 | 616 | 381 | |||
| OLM | KOLM | Olympia | Olympia | United States | America/Los_Angeles | 46.969 | -122.903 | 1652 | 64 |