Airport Codes/O - O
OAG Orange, New South Wales, Australia OAJ Jacksonville, NC [Albert J. Ellis Airport], USA OAK Oakland, CA [Metropolitan Oakland International Airport], USA OAM Oamaru, New Zealand OAN Olanchito, Honduras OAR Fort Ord/Monterey, CA [Fritzsche Army Air Field], USA OAX Oaxaca [Xoxocotlan], Mexico OBA Oban, Queensland, Australia OBC Obock, Djibouti OBD Obano, Indonesia OBE Okeechobee, FL [Okeechobee County Airport], USA OBF Oberpfaffenhofen [Dornier/DLR], Germany OBI Obidos, PA, Brazil OBK Northbrook, IL [Plaza Heliport], USA OBM Morobe, Papua New Guinea OBN Oban, United Kingdom OBO Obihiro, Japan OBS Aubenas, France OBT Oakland, CA [Coliseum Street], USA OBU Kobuk, AK [Kobuk Airport], USA OBX Obo, Papua New Guinea OBY Scoresbysund, Greenland OCA Key Largo, FL [Ocean Reef Club Airport], USA OCC Coca, Ecuador OCE Ocean City, MD [Ocean City Municipal Airport], USA OCF Ocala, FL [Ocala Regional Airport/Jim Taylor Field], USA OCH Nacogdoches, TX [A.L. Mangham Jr. Regional Airport], USA OCI Oceanic, AK, USA OCJ Ocho Rios, Jamaica OCN Oceanside, CA [Oceanside Municipal Airport], USA OCO San Jose [El Coco], Costa Rica OCQ Oconto, WI [Oconto Municipal Airport], USA OCV Ocana, Colombia OCW Washington, NC [Warren Field], USA ODA Ouadda, Central African Republic ODB Cordoba [San Jeronimo], Spain ODD Oodnadatta, South Australia, Australia ODE Odense [Beldringe], Denmark ODH Odiham, England [Odiham RAF Station], United Kingdom ODJ Ouanda Djalle, Central African Republic ODL Cordillo Downs, South Australia, Australia ODM Oakland, MD [Garrett County Airport], USA ODN Long Seridan, Sarawak, Malaysia ODR Ord River, Western Australia, Australia ODS Odessa, Odesa [Tsentrainy], Ukraine ODW Oak Harbor, WA [Oak Harbor Air Park], USA ODX Ord, NE [Evelyn Sharp Field], USA ODY Oudomxay, Laos OEA Vincennes, IN [O'Neal Airport], USA OEC Ocussi, Indonesia OEL Oakley, KS [Oakley Municipal Airport], USA OEM Paloemeu, Suriname OEO Osceola, WI [L.O. Simenstad Municipal Airport], USA OER Ornskoldsvik, Sweden OES San Antonio Oeste [Antoine de Ste.-Exupery], Argentina OFF Omaha, NE [Offutt Air Force Base], USA OFI Ouango Fitini, Ivory Coast OFJ Olafsfjordur, Iceland OFK Norfolk, NE [Karl Stefan Memorial Airport], USA OFP Richmond/Ashland, VA [Hanover County Municipal Airport], USA OFU Ofu Island [Ofu Airport], American Samoa OGA Ogallala, NE [Searle Field], USA OGB Orangeburg, SC [Orangeburg Municipal Airport], USA OGD Ogden, UT [Ogden-Hinckley Airport], USA OGE Ogeranang, Papua New Guinea OGG Kahului, HI [Kahului Airport], USA OGL Ogle, Guyana OGM Ontonagon, MI [Ontonagon County Airport], USA OGN Yonaguni Jima, Japan OGO Abengourou, Ivory Coast OGR Bongor, Chad OGS Ogdensburg, NY [Ogdensburg International Airport], USA OGX Ouargla, Algeria OGZ Vladikavkaz, North Ossetia, Russia OHC Northeast Cape, AK, USA OHD Ohrid, Macedonia OHI Oshakati, Namibia OHP Oban [Oban Heliport], United Kingdom OHR Wyk auf Foehr, Germany OHT Kohat, Pakistan OIC Norwich, NY [Lt. Warren Eaton Airport], USA OIL Oil City, PA [Splane Memorial Airport], USA OIM Oshima Island, Japan OIN Oberlin, KS [Oberlin Municipal Airport], USA OIR Okushiri, Japan OIT Oita, Japan OJC Olathe, KS/Kansas City, MO [Johnson County Executive Airport], USA OJO Outjo, Namibia OJW Otjiwarongo, Namibia OKA Okinawa, Ryukyu Is., Japan OKB Orchid Beach, Australia OKC Oklahoma City, OK [Will Rogers World Airport], USA OKD Sapporo [Okadama], Japan OKE Okino Erabu, Japan OKF Okaukuejo, Namibia OKG Okoyo, Congo OKH Oakham, England [Cottesmore RAF Station], United Kingdom OKI Oki Island, Japan OKJ Okayama, Japan OKK Kokomo, IN [Kokomo Municipal Airport], USA OKL Oksibil, Indonesia OKM Okmulgee, OK [Okmulgee Municipal Airport], USA OKN Okondja, Gabon OKO Yokota [Yokota Air Force Base], Japan OKP Oksapmin, Papua New Guinea OKQ Okaba, Indonesia OKR Yorke Islands, Queensland, Australia OKS Oshkosh, NE [Garden County Airport], USA OKU Mokuti, Namibia OKY Oakey, Queensland, Australia OKZ Sandersville, GA [Kaolin Field], USA OLA Orland, Norway OLB Olbia, Sardinia [Costa Smeralda], Italy OLD Old Town, ME [Dewitt Field/Old Town Municipal Airport], USA OLE Olean, NY [Cattaraugus County-Olean Airport], USA OLF Wolf Point, MT [L. M. Clayton Airport], USA OLG Solon Springs, WI [Solon Springs Municipal Airport], USA OLH Old Harbor, AK [Old Harbor Airport], USA OLI Olafsvik, Iceland OLJ Olpoi, Vanuatu OLM Olympia, WA [Olympia Airport], USA OLN Colonia Sarmien, Argentina OLO Olomouc, Czech Republic OLP Olympic Dam, South Australia, Australia OLQ Olsobip, Papua New Guinea OLS Nogales, AZ [Nogales International Airport], USA OLU Columbus, NE [Columbus Municipal Airport], USA OLV Olive Branch, MS [Olive Branch Airport], USA OLY Olney-Noble, IL [Olney-Noble Airport], USA OLZ Oelwein, IA [Oelwein Municipal Airport], USA OMA Omaha, NE [Eppley Airfield], USA OMB Omboue, Gabon OMC Ormoc, Philippines OMD Oranjemund, Namibia OME Nome, AK [Nome Airport], USA OMF Mafraq [King Hussein Air Base], Jordan OMG Omega, Namibia OMH Urmieh, Iran OMJ Omura, Japan OMK Omak, WA [Omak Airport], USA OML Omkalai, Papua New Guinea OMM Marmul, Oman OMN Osmanabad, India OMO Mostar, Bosnia-Herzegovina OMR Oradea, Romania OMS Omsk, Omsk, Russia OMY Oddor Meanchey, Cambodia ONA Winona, MN [Winona Municipal Airport-Max Conrad Field], USA ONB Ononge, Papua New Guinea OND Ondangwa, Namibia ONE Onepuso, Solomon Islands ONG Mornington Island, Queensland, Australia ONH Oneonta, NY [Oneonta Municipal Airport], USA ONI Moanamani, Indonesia ONL O'Neill, NE [The O'Neill Municipal Airport-John L. Baker Field], USA ONM Socorro, NM [Socorro Municipal Airport], USA ONN Onion Bay, AK, USA ONO Ontario, OR [Ontario Municipal Airport], USA ONP Newport, OR [Newport Municipal Airport], USA ONR Monkira, Queensland, Australia ONS Onslow, Western Australia, Australia ONT Ontario, CA [Ontario International Airport], USA ONU Ono I Lau, Fiji ONX Colon, Panama ONY Olney, TX [Olney Municipal Airport], USA OOA Oskaloosa, IA [Oskaloosa Municipal Airport], USA OOK Toksook Bay, AK [Toksook Bay Airport], USA OOL Gold Coast (Coolangatta), Queensland, Australia OOM Cooma, New South Wales, Australia OOR Mooraberrie, Queensland, Australia OOT Onotoa, Kiribati OPA Kopasker, Iceland OPB Open Bay, Papua New Guinea OPF Miami, FL [Opa Locka Airport], USA OPG Ogn, Papua New Guinea OPI Oenpelli, Northern Territory, Australia OPL Opelousas, LA [St. Landry Parish Airport-Ahart Field], USA OPN Thomaston, GA [Thomaston-Upson County Airport], USA OPO Porto (Oporto) [Francisco Sa Carneiro (Pedras Rubras)], Portugal OPS Sinop, MT, Brazil OPU Balimo, Papua New Guinea OPW Opuwa, Namibia OQW Maquoketa, IA [Maquoketa Municipal Airport], USA ORA Oran, Argentina ORB Orebro, Sweden ORC Orocue, Colombia ORD Chicago, IL [Chicago-O'Hare International Airport], USA ORE Orange, MA [Orange Municipal Airport], USA ORF Norfolk/Virginia Beach/Williamsburg, VA [Norfolk International Airport], USA ORG Paramaribo [Zorg en Hoop], Suriname ORH Worcester, MA [Worcester Municipal Airport], USA ORI Port Lions, AK [Port Lions Airport], USA ORJ Orinduik, Guyana ORK Cork, Ireland ORL Orlando, FL [Executive Airport], USA ORM Northampton/Peterborough, England [Northampton Airport/Wittering RAF Station], United Kingdom ORN Oran [Es Senia], Algeria ORO Yoro, Honduras ORP Orapa, Botswana ORQ Norwalk, CT, USA ORR Yorketown, South Australia, Australia ORS Orpheus Island Resort, Queensland, Australia ORT Northway, AK [Northway Airport], USA ORU Oruro, Bolivia ORV Noorvik, AK [Robert (Bob) Curtis Memorial Airport], USA ORW Ormara, Pakistan ORX Oriximina, PA, Brazil ORY Paris [Orly], France ORZ Orange Walk, Belize OSA Osaka [Metropolitan Area], Japan OSB Osage Beach, MO [Grand Glaize-Osage Beach Airport], USA OSC Oscoda, MI [Oscoda-Wurtsmith Airport], USA OSD Ostersund [Froson Air Base], Sweden OSE Omora, Papua New Guinea OSH Oshkosh, WI [Wittman Regional Airport], USA OSI Osijek, Croatia OSK Oskarshamn, Sweden OSL Oslo [Metropolitan Area], Norway OSM Mosul, Iraq OSN Osan [Air Base], South Korea OSP Slupsk, Poland OSR Ostrava [Mosnov], Czech Republic OSS Osh, Osh, Kyrgyzstan OST Ostend (Oostende), Belgium OSU Columbus, OH [Ohio State University Airport], USA OSW Orsk, Orenburg, Russia OSX Kosciusko, MS [Kosciusko-Attala County Airport], USA OSY Namsos, Norway OSZ Koszalin, Poland OTA Kota, Ethiopia OTC Bol, Chad OTD Contadora, Panama OTG Worthington, MN [Worthington Municipal Airport], USA OTH North Bend, OR [North Bend Municipal Airport], USA OTI Morotai Island, Indonesia OTL Boutilimit, Mauritania OTM Ottumwa, IA [Ottumwa Industrial Airport], USA OTN Oaktown, IN [Green Airport], USA OTO Otto, NM, USA OTP Bucharest [Otopeni], Romania OTR Coto 47, Costa Rica OTS Anacortes, WA [Anacortes Airport], USA OTU Otu, Colombia OTV Otavia, Namibia OTY Oria, Papua New Guinea OTZ Kotzebue, AK [Ralph Wien Memorial Airport], USA OUA Ouagadougou, Burkina Faso OUC Ouaga, Ivory Coast OUD Oujda [Les Anglades], Morocco OUE Ouesso, Congo OUG Ouahigouya, Burkina Faso OUH Oudtshoorn, South Africa OUK Outer Skerries, Shetland Islands, United Kingdom OUL Oulu, Finland OUM Hadjer, Chad OUN Norman, OK [University of Oklahoma Westheimer Airport], USA OUR Batouri, Cameroon OUS Ourinhos, SP, Brazil OUT Bousso, Chad OUU Quanga, Gabon OUZ Zouerate, Mauritania OVA Bekily, Madagascar OVB Novosibirsk, Novosibirsk [Tolmachevo], Russia OVD Oviedo/Aviles [Asturias], Spain OVE Oroville, CA [Oroville Municipal Airport], USA OVL Ovalle, Chile OVN Ouven, Australia OVO North Vernon, IN [North Vernon Airport], USA OWA Owatonna, MN [Owatonna Municipal Airport], USA OWB Owensboro, KY [Owensboro-Daviess County Airport], USA OWD Norwood, MA [Norwood Memorial Airport], USA OWE Owendo, Gabon OWI Ottawa, KS [Ottawa Municipal Airport], USA OWK Norridgewock, ME [Central Maine Airport of Norridgewock], USA OWX Ottawa, OH [Putnam County Airport], USA OXC Oxford, CT [Waterbury-Oxford Airport], USA OXD Oxford, OH [Miami University Airport], USA OXF Oxford, England, United Kingdom OXI Knox, IN [Starke County Airport], USA OXO Orientos, New South Wales, Australia OXR Oxnard, CA [Oxnard Airport], USA OXV Knoxville, IA [Knoxville Municipal Airport], USA OXY Morney Plains, Queensland, Australia OYA Goya, Argentina OYE Oyem, Gabon OYG Moyo, Uganda OYK Oiapoque, AP, Brazil OYL Moyale, Kenya OYN Ouyen, Victoria, Australia OYO Tres Arroyos, Argentina OYP St. George Oyapock, French Guyana OYS Yosemite Park, CA, USA OZA Ozona, TX [Ozona Municipal Airport], USA OZC Ozamis City, Philippines OZH Zaporizhzhya, Zaporizhzhya, Ukraine OZP Moron de la Frontera [Moron Air Base], Spain OZR Fort Rucker (Ozark), AL [Cairns Army Air Field], USA OZZ Ouarzazate, Morocco