IATA | ICAO | Airport name | Location served | Time | DST |
-OA- |
OAA | OASH | Forward Operating Base Shank | Gardez, Afghanistan | | |
OAG | YORG | Orange Airport[1] | Orange, New South Wales, Australia | | |
OAH | OASD | Shindand Air Base | Shindand, Afghanistan | | |
OAI | OAIX | Bagram Airfield | Bagram, Afghanistan | | |
OAJ | KOAJ | Albert J. Ellis Airport | Jacksonville, North Carolina, United States | | |
OAK | KOAK | Oakland International Airport | Oakland, California, United States | | |
OAL | SSKW | Capital do Café Airport[1] | Cacoal, Rondônia, Brazil | | |
OAM | NZOU | Oamaru Airport | Oamaru, New Zealand | | |
OAN | MHEA | El Arrayán Airport[1] | Olanchito, Honduras | | |
OAR | KOAR | Marina Municipal Airport | Monterey / Marina, California, United States | | |
OAS | OASA | Sharana Airstrip / Forward Operating Base Sharana | Sharana, Afghanistan | | |
OAX | MMOX | Xoxocotlán International Airport | Oaxaca de Juárez, Oaxaca, Mexico | | |
OAZ | OAZI | Camp Bastion Air Base | Girishk (Gereshk), Afghanistan | | |
-OB- |
OBA | | Oban Airport[1] | Oban, Queensland, Australia | | |
OBC | HDOB | Obock Airport | Obock, Djibouti | | |
OBD | | Obano Airport | Obano, Indonesia | | |
OBE | KOBE | Okeechobee County Airport | Okeechobee, Florida, United States | | |
OBF | EDMO | Oberpfaffenhofen Airport | Oberpfaffenhofen, Bavaria, Germany | UTC+02:00 | Mar-Oct |
OBI | SBTI | Óbidos Airport[1] | Óbidos, Pará, Brazil | | |
OBL | EBZR | Oostmalle Airfield | Zoersel, Belgium | | |
OBM | | Morobe Airport[1] | Morobe, Papua New Guinea | | |
OBN | EGEO | Oban Airport[1] (North Connel Airport) | Oban, Scotland, United Kingdom | UTC+01:00 | Mar-Oct |
OBO | RJCB | Tokachi–Obihiro Airport | Obihiro, Hokkaido, Japan | UTC+09:00 | |
OBS | LFHO | Aubenas Aerodrome[1] (Ardèche Méridionale Aerodrome) | Aubenas, Rhône-Alpes, France | UTC+02:00 | Mar-Oct |
OBU | PAOB | Kobuk Airport | Kobuk, Alaska, United States | | |
OBX | AYOB | Obo Airport | Obo, Papua New Guinea | | |
-OC- |
OCA | | Ocean Reef Club Airport (FAA: 07FA) | Key Largo, Florida, United States | | |
OCC | SECO | Francisco de Orellana Airport | Puerto Francisco de Orellana (Coca), Ecuador | | |
OCE | KOXB | Ocean City Municipal Airport | Ocean City, Maryland, United States | | |
OCF | KOCF | Ocala International Airport (Jim Taylor Field) | Ocala, Florida, United States | | |
OCH | KOCH | A.L. Mangham Jr. Regional Airport | Nacogdoches, Texas, United States | | |
OCJ | MKBS | Ian Fleming International Airport | Ocho Rios, Jamaica | | |
OCM | YBGD | Boolgeeda Airport[1] | Boolgeeda, Western Australia, Australia | | |
OCN | KOKB | Oceanside Municipal Airport (FAA: OKB) | Oceanside, California, United States | | |
OCS | | Corisco International Airport[1] | Corisco Island, Equatorial Guinea | | |
OCV | SKOC | Aguas Claras Airport[1] | Ocaña, Colombia | | |
OCW | KOCW | Washington–Warren Airport (Warren Field) | Washington, North Carolina, United States | | |
-OD- |
ODA | FEFW | Ouadda Airport[1] | Ouadda, Central African Republic | | |
ODB | LEBA | Córdoba Airport | Córdoba, Andalusia, Spain | UTC+02:00 | Mar-Oct |
ODC | | Oakdale Airport[1] (FAA: O27) | Oakdale, California, United States | | |
ODD | YOOD | Oodnadatta Airport[1] | Oodnadatta, South Australia, Australia | | |
ODE | EKOD | Hans Christian Andersen Airport | Odense, Denmark | | |
ODH | EGVO | RAF Odiham | Odiham, England, United Kingdom | UTC+01:00 | Mar-Oct |
ODJ | FEGO | Ouanda Djallé Airport[1] | Ouanda Djallé, Central African Republic | | |
ODL | | Cordillo Downs Airport[1] | Cordillo Downs, South Australia, Australia | | |
ODM | | Garrett County Airport[1] (FAA: 2G4) | Oakland, Maryland, United States | | |
ODN | WBGI | Long Seridan Airport[1] | Long Seridan, Sarawak, Malaysia | | |
ODO | UIKB | Bodaybo Airport[1] | Bodaybo, Irkutsk Oblast, Russia | | |
ODR | YORV | Ord River Airport[1] | Ord River, Western Australia, Australia | | |
ODS | UKOO | Odesa International Airport | Odesa, Ukraine | | |
ODW | KOKH | A.J. Eisenberg Airport (FAA: OKH) | Oak Harbor, Washington, United States | | |
ODY | VLOS | Oudomsay Airport | Muang Xay (Oudomxai), Laos | | |
-OE- |
OEC | WPOC | Oecusse Airport | Oecussi, East Timor | | |
OEL | UUOR | Oryol Yuzhny Airport | Oryol (Orel), Oryol Oblast, Russia | | |
OEM | SMPA | Vincent Fayks Airport | Paloemeu, Suriname | | |
OEO | KOEO | L.O. Simenstad Municipal Airport | Osceola, Wisconsin, United States | | |
OER | ESNO | Örnsköldsvik Airport | Örnsköldsvik, Sweden | | |
OES | SAVN | Antoine de Saint Exupéry Airport | San Antonio Oeste, Río Negro, Argentina | | |
-OF- |
OFF | KOFF | Offutt Air Force Base | Omaha, Nebraska, United States | | |
OFI | DIOF | Ouango Fitini Airport[1] | Ouango Fitini, Ivory Coast | | |
OFJ | BIOF | Ólafsfjörður Airport[1] | Ólafsfjörður, Iceland | | |
OFK | KOFK | Norfolk Regional Airport (Karl Stefan Memorial Field) | Norfolk, Nebraska, United States | | |
OFU | NSAS | Ofu Airport (FAA: Z08) | Ofu Island, American Samoa | | |
-OG- |
OGA | KOGA | Searle Field | Ogallala, Nebraska, United States | | |
OGB | KOGB | Orangeburg Municipal Airport | Orangeburg, South Carolina, United States | | |
OGD | KOGD | Ogden-Hinckley Airport | Ogden, Utah, United States | | |
OGE | | Ogeramnang Airport[1] | Ogeramnang, Papua New Guinea | | |
OGG | PHOG | Kahului Airport | Kahului, Hawaii, United States | | |
OGL | SYGO | Ogle Airport | Georgetown, Guyana | | |
OGM | | Ustupu-Ogobsucum Airport[1] | Ustupo, Panama | | |
OGN | ROYN | Yonaguni Airport | Yonaguni, Yaeyama Islands, Japan | UTC+09:00 | |
OGO | DIAU | Abengourou Airport[1] | Abengourou, Ivory Coast | | |
OGR | FTTB | Bongor Airport | Bongor, Chad | | |
OGS | KOGS | Ogdensburg International Airport | Ogdensburg, New York, United States | | |
OGU | LTCB | Ordu–Giresun Airport | Ordu / Giresun, Turkey | | |
OGV | FYNG | Ongava Airstrip[1] | Ongava, Namibia | | |
OGX | DAUU | Ain Beida Airport | Ouargla, Algeria | | |
OGZ | URMO | Beslan Airport | Vladikavkaz, North Ossetia-Alania, Russia | | |
-OH- |
OHA | NZOH | RNZAF Base Ohakea[1] | Bulls, New Zealand | | |
OHB | | Ambohibary Airport[1] | Moramanga, Madagascar | | |
OHD | LWOH | Ohrid "St. Paul the Apostle" Airport | Ohrid, North Macedonia | | |
OHE | ZYMH | Mohe Gulian Airport | Mohe, Heilongjiang, China | UTC+08:00 | |
OHH | UHSH | Okha Airport (Novostroyka Airport) | Okha, Sakhalin Oblast, Russia | | |
OHI | FYOS | Oshakati Airport[1] | Oshakati, Namibia | | |
OHO | UHOO | Okhotsk Airport | Okhotsk, Khabarovsk Krai, Russia | | |
OHR | EDXY | Wyk auf Föhr Airport[1] | Wyk auf Föhr, Schleswig-Holstein, Germany | UTC+02:00 | Mar-Oct |
OHS | OOSH | Sohar Airport[1] | Sohar, Oman | | |
OHT | OPKT | PAF Base Kohat | Kohat, Pakistan | | |
-OI- |
OIA | SDOW | Ourilândia do Norte Airport[1] | Ourilândia do Norte, Pará, Brazil | | |
OIC | KOIC | Lt. Warren Eaton Airport | Norwich, New York, United States | | |
OIM | RJTO | Oshima Airport[1] | Ōshima, Izu Islands, Japan | UTC+09:00 | |
OIR | RJEO | Okushiri Airport | Okushiri, Okushiri Island, Japan | UTC+09:00 | |
OIS | UDGS | Goris Airport | Shinuhayr, Armenia | | |
OIT | RJFO | Oita Airport | Oita, Kyushu, Japan | UTC+09:00 | |
-OJ- |
OJC | KOJC | Johnson County Executive Airport | Olathe, Kansas, United States | | |
OJU | | Tanjung Api Airport | Ampana, Tojo Una-Una Regency, Central Sulawesi, Indonesia | | |
-OK- |
OKA | ROAH | Naha Airport | Okinawa, Ryukyu Islands, Japan | UTC+09:00 | |
OKB | YORC | Orchid Beach Airport | Fraser Island, Queensland, Australia | | |
OKC | KOKC | Will Rogers World Airport | Oklahoma City, Oklahoma, United States | | |
OKD | RJCO | Okadama Airport[1] | Sapporo, Hokkaido, Japan | UTC+09:00 | |
OKE | RJKB | Okinoerabu Airport[1] | Okinoerabujima, Amami Islands, Japan | UTC+09:00 | |
OKF | FYOO | Okaukuejo Airport[1] | Okaukuejo, Namibia | | |
OKG | | Okoyo Airport[1] | Okoyo, Republic of the Congo | | |
OKH | EGXJ | RAF Cottesmore | Oakham, England, United Kingdom | UTC+01:00 | Mar-Oct |
OKI | RJNO | Oki Airport[1] | Dogo, Oki Islands, Japan | UTC+09:00 | |
OKJ | RJOB | Okayama Airport | Okayama, Honshu, Japan | UTC+09:00 | |
OKK | KOKK | Kokomo Municipal Airport | Kokomo, Indiana, United States | | |
OKL | WAJO | Gunung Bintang Airport | Oksibil, Indonesia | | |
OKM | KOKM | Okmulgee Regional Airport | Okmulgee, Oklahoma, United States | | |
OKN | FOGQ | Okondja Airport[1] | Okondja, Gabon | | |
OKO | RJTY | Yokota Air Base[1] | Fussa, Honshu, Japan | UTC+09:00 | |
OKP | AYOJ | Oksapmin Airport[1] | Oksapmin, Papua New Guinea | | |
OKQ | WAKO | Okaba Airport[1] | Okaba, Indonesia | | |
OKR | YYKI | Yorke Island Airport[1] | Yorke Island, Queensland, Australia | | |
OKS | KOKS | Garden County Airport | Oshkosh, Nebraska, United States | | |
OKT | UWUK | Oktyabrsky Airport | Oktyabrsky, Bashkortostan, Russia | | |
OKU | FYMO | Mokuti Lodge Airport[1] | Mokuti Lodge, Namibia | | |
OKV | | Okao Airport[1] | Okao, Papua New Guinea | | |
OKY | YBOK | Oakey Army Aviation Centre[1] | Oakey, Queensland, Australia | | |
-OL- |
OLA | ENOL | Ørland Airport[1] | Ørland, Norway | | |
OLB | LIEO | Olbia Costa Smeralda Airport | Olbia, Sardinia, Italy | | |
OLC | SDCG | Senadora Eunice Michiles Airport[1] | São Paulo de Olivença, Amazonas, Brazil | | |
OLD | KOLD | Old Town Municipal Airport and Seaplane Base (Dewitt Field) | Old Town, Maine, United States | | |
OLE | KOLE | Cattaraugus County-Olean Airport | Olean, New York, United States | | |
OLF | KOLF | L. M. Clayton Airport | Wolf Point, Montana, United States | | |
OLH | | Old Harbor Airport (FAA: 6R7) | Old Harbor, Alaska, United States | | |
OLI | BIRF | Rif Airport[1] | Ólafsvík, Iceland | | |
OLJ | NVSZ | Olpoi Airport[1] (North West Santo Airport) | Olpoi, Vanuatu | | |
OLK | SGOL | Fuerte Olimpo Airport | Fuerte Olimpo, Paraguay | | |
OLL | | Oyo Ollombo Airport | Oyo, Republic of the Congo | | |
OLM | KOLM | Olympia Regional Airport | Olympia, Washington, United States | | |
OLN | SAVM | Lago Musters Airport[1] | Sarmiento, Chubut, Argentina | | |
OLO | LKOL | Olomouc Airport (Neředín Airport) | Olomouc, Czech Republic | | |
OLP | YOLD | Olympic Dam Airport[1] | Olympic Dam, South Australia, Australia | | |
OLQ | | Olsobip Airport[1] | Olsobip, Papua New Guinea | | |
OLR | OASL | Forward Operating Base Salerno | Khost, Afghanistan | | |
OLS | KOLS | Nogales International Airport | Nogales, Arizona, United States | | |
OLU | KOLU | Columbus Municipal Airport | Columbus, Nebraska, United States | | |
OLV | KOLV | Olive Branch Airport | Olive Branch, Mississippi, United States | | |
OLX | | Olkiombo Airstrip[1] | Olkiombo, Kenya | | |
OLY | KOLY | Olney-Noble Airport | Olney / Noble, Illinois, United States | | |
OLZ | UEMO | Olyokminsk Airport | Olyokminsk, Yakutia, Russia | | |
-OM- |
OMA | KOMA | Eppley Airfield | Omaha, Nebraska, United States | | |
OMB | FOOH | Omboué Hospital Airport[1] | Omboué, Gabon | | |
OMC | RPVO | Ormoc Airport | Ormoc, Philippines | | |
OMD | FYOG | Oranjemund Airport[1] | Oranjemund, Namibia | | |
OME | PAOM | Nome Airport | Nome, Alaska, United States | | |
OMF | OJMF | King Hussein Air Base | Mafraq, Jordan | | |
OMG | FYOE | Omega Airport[1] | Omega, Namibia | | |
OMH | OITR | Urmia Airport[1] | Urmia (Urūmiyeh), Iran | | |
OMI | OIAJ | Omidiyeh Air Base | Omidiyeh, Iran | | |
OMJ | RJDU | Ōmura Airport[1] | Nagasaki / Ōmura, Kyushu, Japan | UTC+09:00 | |
OMK | KOMK | Omak Airport | Omak, Washington, United States | | |
OML | | Omkalai Airport[1] | Omkalai, Papua New Guinea | | |
OMM | OOMX | Marmul Airport[1] | Marmul, Oman | | |
OMN | | Zomin Airport[1] | Zomin, Uzbekistan | | |
OMO | LQMO | Mostar Airport | Mostar, Bosnia and Herzegovina | | |
OMR | LROD | Oradea International Airport | Oradea, Romania | | |
OMS | UNOO | Omsk Tsentralny Airport | Omsk, Omsk Oblast, Russia | | |
OMY | | Thbeng Meanchey Airport[1] (Preah Vinhear Airport) | Phnom Tbeng Meanchey, Cambodia | | |
-ON- |
ONA | KONA | Winona Municipal Airport (Max Conrad Field) | Winona, Minnesota, United States | | |
ONB | AYQQ | Ononge Airport[1] | Ononge, Papua New Guinea | | |
OND | FYOA | Ondangwa Airport[1] | Ondangwa, Namibia | | |
ONE | | Onepusu Airport[1] | Onepusu, Solomon Islands | | |
ONG | YMTI | Mornington Island Airport[1] | Mornington Island, Queensland, Australia | | |
ONH | | Oneonta Municipal Airport (FAA: N66) | Oneonta, New York, United States | | |
ONI | WABD | Moanamani Airport[1] | Moanemani (Moanamani), Indonesia | | |
ONJ | RJSR | Odate–Noshiro Airport | Ōdate / Noshiro, Honshu, Japan | UTC+09:00 | |
ONK | UERO | Olenyok Airport | Olenyok, Yakutia, Russia | | |
ONL | KONL | O'Neill Municipal Airport (John L. Baker Field) | O'Neill, Nebraska, United States | | |
ONM | KONM | Socorro Municipal Airport | Socorro, New Mexico, United States | | |
ONO | KONO | Ontario Municipal Airport | Ontario, Oregon, United States | | |
ONP | KONP | Newport Municipal Airport | Newport, Oregon, United States | | |
ONQ | LTAS | Zonguldak Airport | Zonguldak, Turkey | | |
ONR | YMNK | Monkira Airport[1] | Monkira, Queensland, Australia | | |
ONS | YOLW | Onslow Airport[1] | Onslow, Western Australia, Australia | | |
ONT | KONT | Ontario International Airport | Ontario, California, United States | | |
ONU | NFOL | Ono-i-Lau Airport[1] | Ono-i-Lau, Fiji | | |
ONX | MPEJ | Enrique Adolfo Jiménez Airport | Colón, Panama | | |
ONY | KONY | Olney Municipal Airport | Olney, Texas, United States | | |
-OO- |
OOA | KOOA | Oskaloosa Municipal Airport | Oskaloosa, Iowa, United States | | |
OOK | PAOO | Toksook Bay Airport | Toksook Bay, Alaska, United States | | |
OOL | YBCG | Gold Coast Airport (Coolangatta Airport) | Gold Coast, Queensland, Australia | | |
OOM | YCOM | Cooma–Snowy Mountains Airport[1] | Cooma, New South Wales, Australia | | |
OOR | YMOO | Mooraberree Airport[1] | Mooraberree, Queensland, Australia | | |
OOT | NGON | Onotoa Airport[1] | Onotoa, Kiribati | | |
-OP- |
OPA | BIKP | Kópasker Airport[1] | Kópasker, Iceland | | |
OPB | | Open Bay Airport[1] | Open Bay, Papua New Guinea | | |
OPF | KOPF | Miami-Opa Locka Executive Airport | Miami, Florida, United States | | |
OPI | YOEN | Oenpelli Airport[1] | Gunbalanya (Oenpelli), Northern Territory, Australia | | |
OPL | KOPL | St. Landry Parish Airport (Ahart Field) | Opelousas, Louisiana, United States | | |
OPO | LPPR | Francisco de Sá Carneiro Airport | Porto, Portugal | | |
OPS | SWSI | Presidente João Figueiredo Airport | Sinop, Mato Grosso, Brazil | | |
OPU | AYBM | Balimo Airport[1] | Balimo, Papua New Guinea | | |
OPW | FYOP | Opuwa Airport[1] | Opuwo, Namibia | | |
-OR- |
ORA | SASO | Orán Airport | Orán, Salta, Argentina | | |
ORB | ESOE | Örebro Airport | Örebro, Sweden | | |
ORC | SKOE | Orocue Airport[1] | Orocué, Colombia | | |
ORD | KORD | O'Hare International Airport | Chicago, Illinois, United States | UTC−06:00 | Mar-Nov |
ORE | LFOZ | Orléans – Saint-Denis-de-l'Hôtel Airport[1] | Orléans, Centre-Val de Loire, France | UTC+02:00 | Mar-Oct |
ORF | KORF | Norfolk International Airport | Norfolk, Virginia, United States | | |
ORG | SMZO | Zorg en Hoop Airport | Paramaribo, Suriname | | |
ORH | KORH | Worcester Regional Airport | Worcester, Massachusetts, United States | | |
ORI | KORI | Port Lions Airport | Port Lions, Alaska, United States | | |
ORJ | SYOR | Orinduik Airport | Orinduik, Guyana | | |
ORK | EICK | Cork Airport | Cork, Ireland | | |
ORL | KORL | Orlando Executive Airport | Orlando, Florida, United States | | |
ORM | EGBK | Sywell Aerodrome | Northampton, England, United Kingdom | UTC+01:00 | Mar-Oct |
ORN | DAOO | Oran Es Sénia Airport | Oran, Algeria | | |
ORO | MHYR | Yoro Airport[1] | Yoro, Honduras | | |
ORP | FBOR | Orapa Airport[1] | Orapa, Botswana | | |
ORR | YYOR | Yorketown Airport | Yorketown, South Australia, Australia | | |
ORS | | Orpheus Island Resort Waterport | Orpheus Island, Queensland, Australia | | |
ORT | PAOR | Northway Airport | Northway, Alaska, United States | | |
ORU | SLOR | Juan Mendoza Airport | Oruro, Bolivia | | |
ORV | PFNO | Robert (Bob) Curtis Memorial Airport (FAA: D76) | Noorvik, Alaska, United States | | |
ORW | OPOR | Ormara Airport[1] | Ormara, Pakistan | | |
ORX | SNOX | Oriximiná Airport[1] | Oriximiná, Pará, Brazil | | |
ORY | LFPO | Orly Airport | Paris, Île-de-France, France | UTC+02:00 | Mar-Oct |
ORZ | MZTH | Orange Walk Airport[1] | Orange Walk Town, Belize | | |
-OS- |
OSA[1] | | metropolitan area1 | Osaka, Honshu, Japan | | |
OSB | | Grand Glaize-Osage Beach Airport (FAA: K15) | Osage Beach, Missouri, United States | | |
OSC | KOSC | Oscoda–Wurtsmith Airport | Oscoda, Michigan, United States | | |
OSD | ESNZ | Åre Östersund Airport | Östersund, Sweden | | |
OSE | | Omora Airport[1] | Omora, Papua New Guinea | | |
OSF | UUMO | Ostafyevo International Airport | Moscow / Podolsk, Moscow Oblast, Russia | | |
OSG | | Ossima Airport[1] | Ossima, Papua New Guinea | | |
OSH | KOSH | Wittman Regional Airport | Oshkosh, Wisconsin, United States | | |
OSI | LDOS | Osijek Airport | Osijek, Croatia | | |
OSK | ESMO | Oskarshamn Airport | Oskarshamn, Sweden | | |
OSL | ENGM | Oslo Airport, Gardermoen | Oslo, Norway | | |
OSM | ORBM | Mosul International Airport[1] | Mosul, Iraq | | |
OSN | RKSO | Osan Air Base[1] | Osan, South Korea | | |
OSO | YOSB | Osborne Mine Airport[1] | Osborne Mine, Queensland, Australia | | |
OSR | LKMT | Leoš Janáček Airport Ostrava | Ostrava, Czech Republic | | |
OSS | UAFO | Osh Airport | Osh, Kyrgyzstan | | |
OST | EBOS | Ostend–Bruges International Airport | Ostend / Bruges, Belgium | | |
OSU | KOSU | Ohio State University Airport | Columbus, Ohio, United States | | |
OSW | UWOR | Orsk Airport | Orsk, Orenburg Oblast, Russia | | |
OSX | KOSX | Kosciusko-Attala County Airport | Kosciusko, Mississippi, United States | | |
OSY | ENNM | Namsos Airport, Høknesøra | Namsos, Norway | | |
OSZ | EPKZ | Koszalin-Zegrze Pomorskie Airport[1] | Koszalin, Poland | | |
-OT- |
OTA | | Mota Airport[1] | Mota, Ethiopia | | |
OTC | FTTL | Bol-Bérim Airport | Bol, Chad | | |
OTD | | Contadora Airport | Contadora Island, Panama | | |
OTG | KOTG | Worthington Municipal Airport | Worthington, Minnesota, United States | | |
OTH | KOTH | Southwest Oregon Regional Airport | North Bend, Oregon, United States | | |
OTI | WAMR | Pitu Airport[1] | Morotai Island, Indonesia | | |
OTJ | FYOW | Otjiwarongo Airport[1] | Otjiwarongo, Namibia | | |
OTK | KTMK | Tillamook Airport[1] (FAA: TMK) | Tillamook, Oregon, United States | | |
OTL | GQNB | Boutilimit Airport | Boutilimit, Mauritania | | |
OTM | KOTM | Ottumwa Regional Airport | Ottumwa, Iowa, United States | | |
OTN | | Ed-Air Airport (FAA: 2IG4) | Oaktown, Indiana, United States | | |
OTP | LROP | Henri Coandă International Airport | Bucharest, Romania | | |
OTR | MRCC | Coto 47 Airport | Coto 47, Costa Rica | | |
OTS | | Anacortes Airport (FAA: 74S) | Anacortes, Washington, United States | | |
OTT | | Andre Maggi Airport[1] | Cotriguaçu, Mato Grosso, Brazil | | |
OTU | SKOT | Otú Airport[1] | Remedios, Colombia | | |
OTV | AGGQ | Ontong Java Airport[1] | Ontong Java Atoll, Solomon Islands | | |
OTY | | Oria Airport[1] | Oria, Papua New Guinea | | |
OTZ | PAOT | Ralph Wien Memorial Airport | Kotzebue, Alaska, United States | | |
-OU- |
OUA | DFFD | Ouagadougou Airport | Ouagadougou, Burkina Faso | | |
OUD | GMFO | Angads Airport | Oujda, Morocco | | |
OUE | FCOU | Ouésso Airport[1] | Ouésso, Republic of the Congo | | |
OUG | DFCC | Ouahigouya Airport | Ouahigouya, Burkina Faso | | |
OUH | FAOH | Oudtshoorn Airport[1] | Oudtshoorn, South Africa | | |
OUK | | Out Skerries Airport[1] | Out Skerries, Scotland, United Kingdom | UTC+01:00 | Mar-Oct |
OUL | EFOU | Oulu Airport | Oulu, Finland | | |
OUM | | Oum Hadjer Airport | Oum Hadjer, Chad | | |
OUN | KOUN | University of Oklahoma Westheimer Airport (Max Westheimer Airport) | Norman, Oklahoma, United States | | |
OUR | FKKI | Batouri Airport | Batouri, Cameroon | | |
OUS | SDOU | Jornalista Benedito Pimentel–Ourinhos State Airport[1] | Ourinhos, São Paulo, Brazil | | |
OUT | FTTS | Bousso Airport | Bousso, Chad | | |
OUU | | Ouanga Airport[1] | Ouanga, Gabon | | |
OUZ | GQPZ | Tazadit Airport | Zouerate, Mauritania | | |
-OV- |
OVA | FMSL | Bekily Airport[1] | Bekily, Madagascar | | |
OVB | UNNT | Tolmachevo Airport | Novosibirsk, Novosibirsk Oblast, Russia | | |
OVD | LEAS | Asturias Airport (Oviedo Airport) | Oviedo, Asturias, Spain | UTC+02:00 | Mar-Oct |
OVE | KOVE | Oroville Municipal Airport | Oroville, California, United States | | |
OVG | FAOB | Air Force Base Overberg[1] | Bredasdorp, South Africa | | |
OVL | SCOV | El Tuqui Airport[1] | Ovalle, Chile | | |
OVR | SAZF | Olavarría Airport | Olavarría, Buenos Aires, Argentina | | |
OVS | USHS | Sovetsky Airport | Sovetsky, Khanty-Mansi Autonomous Okrug, Russia | | |
-OW- |
OWA | KOWA | Owatonna Degner Regional Airport | Owatonna, Minnesota, United States | | |
OWB | KOWB | Owensboro–Daviess County Airport | Owensboro, Kentucky, United States | | |
OWD | KOWD | Norwood Memorial Airport | Norwood, Massachusetts, United States | | |
OWK | KOWK | Central Maine Airport of Norridgewock | Norridgewock, Maine, United States | | |
-OX- |
OXB | GGOV | Osvaldo Vieira International Airport | Bissau, Guinea-Bissau | | |
OXC | KOXC | Waterbury–Oxford Airport | Oxford, Connecticut, United States | | |
OXD | KOXD | Miami University Airport | Oxford, Ohio, United States | | |
OXF | EGTK | Oxford Airport (London Oxford Airport) | Oxford, England, United Kingdom | UTC+01:00 | Mar-Oct |
OXO | | Orientos Airport[1] | Orientos, Queensland, Australia | | |
OXR | KOXR | Oxnard Airport | Oxnard, California, United States | | |
OXY | YMNY | Morney Airport[1] | Morney, Queensland, Australia | | |
-OY- |
OYA | SATG | Goya Airport[1] | Goya, Corrientes, Argentina | | |
OYE | FOGO | Oyem Airport[1] | Oyem, Gabon | | |
OYG | | Moyo Airport[1] | Moyo Town, Uganda | | |
OYK | SBOI | Oiapoque Airport | Oiapoque, Amapá, Brazil | | |
OYL | HKMY | Moyale Airport[1] | Moyale, Kenya | | |
OYN | YOUY | Ouyen Airport[1] | Ouyen, Victoria, Australia | | |
OYO | SAZH | Tres Arroyos Airport | Tres Arroyos, Buenos Aires, Argentina | | |
OYP | SOOG | Saint-Georges-de-l'Oyapock Airport[1] | Saint-Georges-de-l'Oyapock, French Guiana | | |
-OZ- |
OZA | KOZA | Ozona Municipal Airport | Ozona, Texas, United States | | |
OZC | RPMO | Labo Airport | Ozamiz, Philippines | | |
OZG | GMAZ | Zagora Airport[1] | Zagora, Morocco | | |
OZH | UKDE | Zaporizhzhia International Airport | Zaporizhzhia, Ukraine | | |
OZP | LEMO | Morón Air Base[1] | Morón de la Frontera, Andalusia, Spain | UTC+02:00 | Mar-Oct |
OZR | KOZR | Cairns Army Airfield | Fort Novosel / Ozark, Alabama, United States | | |
OZZ | GMMZ | Ouarzazate Airport | Ouarzazate, Morocco | | |