O

OAG - Orange, New South Wales, Australia - Springhill
OAJ - Jacksonville, NC, USA
OAK - Oakland, CA, USA - Oakland International
OAX - Oaxaca, Oaxaca, Mexico - Xoxocotlan
OBO - Obihiro, Japan - Obihiro
ODE - Odense, Denmark - Odense
ODS - Odessa, Ukraine - Central
ODW - Oak Harbor, WA, USA
OFK - Norfolk, NE, USA - Karl Stefan Memorial
OGG - Kahului, HI, USA - Kahului
OGS - Ogdensburg, NY, USA
OHD - Ohrid, Macedonia - Ohrid
OIT - Oita, Japan - Oita
OKA - Okinawa, Ryukyu Islands, Japan - Naha Field
OKC - Oklahoma City, OK, USA - Will Rogers World
OKJ - Okayama, Japan - Okayama
OLF - Wolf Point, MT, USA
OMA - Omaha, NE, USA - Eppley Airfield
OME - Nome, AK, USA
OMR - Oradea, Romania - Oradea
ONG - Mornington, Queensland, Australia - Mornington Island
ONT - Ontario, CA, USA - Ontario International Airport
OOK - Toksook Bay, AK, USA
OOL - Gold Coast, Queensland, Australia - Coolangatta
OOM - Cooma, New South Wales, Australia
OPF - Miami, FL, USA - Opa Locka Airport
OPO - Porto, Portugal - Porto
ORB - Orebro, Sweden - Orebro
ORD - Chicago, IL, USA - O'Hare International Airport
ORF - Norfolk, VA, USA - Norfolk International Airport
ORH - Worcester, MA, USA - Worcester /James D O'Brien Field
ORK - Cork, Ireland - Cork
ORL - Orlando, FL, USA - Herndon
ORN - Oran, Algeria - Es Senia
ORY - Paris, France - Orly
OSA - Osaka, Japan - Osaka International Airport
OSD - Ostersund, Sweden - Froesoe
OSL - Oslo, Norway - Gardermoen
OSH - Oshkosh, WI, USA - Wittman Field
OTH - North Bend, OR, USA
OTM - Ottumwa, IA, USA - Ottumwa Industrial Airport
OTP - Bucharest, Romania - Otopeni
OTZ - Kotzebue, AK, USA
OUA - Ouagadougou, Burkina Faso - Ouagadougou
OUL - Oulu, Finland - Oulu
OVB - Novosibirsk, Russia - Tolmachevo
OVD - Asturias, Spain - Asturias
OWB - Owensboro, KY, USA
OWD - Norwood, MA, USA - Memorial Code: Owd
OXB - Bissau, Guinea-Bissau - Osvaldo Vieira
OXR - Oxnard / Ventura, CA, USA - Oxnard
OZZ - Ouarzazate, Morocco - Ouarzazate