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

OA-OS - OT-OX

OA-OS

• 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
• OOL Gold Coast Airport, Coolangatta, Australia
• 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
• ORY Orly Airport, Paris, France
• OSA All Airports, Osaka, Japan
• OSL Oslo Airport, Ullensaker, Norway, north of Oslo
• OSR Ostrava International Airport, Ostrava, Czech Republic
• OUD Oujda Angads Airport, Oujda, Morocco

OT-OX

• OTP Henri Coandă Airport, Otopeni (near Bucharest), Romania
• OUA Ouagadougou, Burkina Faso
• OUL Oulu Airport, Oulu, Finland
• OUZ Zouerate, Mauritania
• OVB Tolmachevo Airport, Novosibirsk, Russia
• OXB Osvaldo Vieiro International Airport, Bissau, Guinea-Bissau
• OXR Oxnard Airport, Oxnard, California, United States