Oak Harbor, WA, USA (ODW)
Oakland, CA, USA (OAK) - Metropolitan Oakland Intl Apt
Oakville, Ontario, Canada (XOK) - Oakville / Via Rail Service
Oaxaca, Oaxaca, Mexico (OAX) - Xoxocotlan
Obihiro, Japan (OBO) - Obihiro
Odense, Denmark (ODE) - Odense
Odessa, Ukraine (ODS) - Central
Ogden, UT, USA
Ogdensburg, NY, USA (OGS)
Ohrid, Macedonia (OHD) - Ohrid
Oita, Japan (OIT) - Oita
Okayama, Japan (OKJ) - Okayama
Okinawa, Ryukyu Islands, Japan (OKA) - Naha Field
Oklahoma City, OK, USA (OKC) - Will Rogers World Airport
Omaha, NE, USA (OMA) - Eppley Airfield
Ontario, CA, USA (ONT) - Ontario International
Oradea, Romania (OMR) - Oradea
Oran, Algeria (ORN) - Es Senia
Orange, New South Wales, Australia (OAG) - Springhill
Orange / Disneyland, CA, USA
Orebro, Sweden (ORB) - Orebro
Orlando, FL, USA (MCO) - Orlando International Airport
Orlando, FL, USA (ORL) - Herndon
Osaka, Japan (ITM) - Itami International Was Osaka
Osaka, Japan (KIX) - Kansai International
Oshawa, Ontario, Canada (YOO)
Oshkosh, WI, USA (OSH) - Wittman Field
Oslo, Norway (GEN) - Garderm O E N
Oslo, Norway (FBU) - Fornebu
Ostersund, Sweden (OSD) - Froesoe
Ottawa, Ontario, Canada (YOW) - Ottawa International
Ottumwa, IA, USA (OTM) - Ottumwa Industrial Airport
Ouagadougou, Burkina Faso (OUA) - Ouagadougou
Ouarzazate, Morocco (OZZ) - Ouarzazate
Oulu, Finland (OUL) - Oulu
Ovda, Israel (VDA)
Owensboro, KY, USA (OWB)
Oxnard / Ventura, CA, USA (OXR) - Oxnard Airport