List of airports: A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z
O OAK Oakland International Airport, Oakland, California, United States, near San Francisco OAX Oaxaca, Mexico OGG Kahului Airport, Kahului, Hawaii, United States OIT Oita, Japan OKC Will Rogers World Airport, Oklahoma City, Oklahoma, United States OKJ Okayama, Japan OMA Eppley Air Field, Omaha, Nebraska, United States OMR Oradea International Airport, Oradea, Romania ONT Ontario International Airport, Ontario, California, United States, near Los Angeles OPO Porto, Portugal ORD O' Hare International Airport, Chicago, Illinois, United States (formerly Orchard Field) ORF Norfolk International Airport, Norfolk, Virginia, United States, near Virginia Beach, Virginia and Williamsburg, Virginia ORK Cork International Airport, Cork, Ireland ORM Sywell Airport, Northampton and Peterborough, United Kingdom OSA All Airports, Osaka, Japan OSL Oslo Airport Gardermoen, Ullensaker, Norway, north of Oslo OSR Ostrava, Czech Republic OTP Otopeni International Airport, Otopeni, Romania, near Bucharest, Romania OUA Ouagadougou, Burkina Faso OUZ Zouerate, Mauritania OVB Tolmachevo Airport, Novosibirsk, Russia OXR Oxnard Airport, Oxnard, California, United States