| IATA | ICAO | City | Region | State | Country | FBU | | Oslo | | | Norway |
GEN | | Oslo | | | Norway |
ITM | | Osaka | | | Japan |
KIX | | Osaka | | | Japan |
MCO | | Orlando | | FLORIDA | USA |
OAG | | Orange | | New South Wales | Australia |
OAK | | Oakland | | CALIFORNIA | USA |
OAX | | Oaxaca | | Oaxaca | Mexico |
OBO | | Obihiro | | | Japan |
ODE | | Odense | | | Denmark |
ODS | | Odessa | | | Ukraine |
ODW | | Oak Harbor | | WASHINGTON | USA |
OGS | | Ogdensburg | | NEW YORK | USA |
OHD | | Ohrid | | | Macedonia |
OIT | | Oita | | | Japan |
OKA | | Okinawa | | Ryukyu Islands | Japan |
OKC | | Oklahoma City | | OKLAHOMA | USA |
OKJ | | Okayama | | | Japan |
OLM | | Olympia | | WASHINGTON | USA |
OMA | | Omaha | | NEBRASKA | USA |
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