| IATA |
ICAO |
Airport name |
Location |
| OAJ |
KOAJ |
Albert J. Ellis Airport |
Jacksonville, North Carolina, United States |
| OAK |
KOAK |
Oakland International Airport |
Oakland (near San Francisco), California, United States |
| OAM |
NZOU |
Oamaru Airport |
Oamaru, North Otago, New Zealand |
| OAR |
KOAR |
Marina Municipal Airport |
Marina, California, United States |
| OAX |
MMOX |
Xoxocotlán International Airport |
Oaxaca, Mexico |
| OBC |
HDOB |
Obock Airport |
Obock, Djibouti |
| OBD |
LEBA |
Córdoba Airport |
Córdoba, Spain |
| OBE |
KOBE |
Okeechobee County Airport |
Okeechobee, Florida, United States |
| OBL |
EBZR |
Zoersel-Oostmalle Airfield |
Zoersel / Oostmalle, Belgium |
| OBO |
RJCB |
Tokachi-Obihiro Airport |
Obihiro, Tokachi Subprefecture, Hokkaido, Japan |
| OBU |
|
Kobuk Airport |
Kobuk, Alaska, United States |
| OCA |
|
Ocean Reef Club Airport |
Key Largo, Florida, United Sates |
| OCC |
SECO |
Francisco de Orellana Airport |
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 |
Boscobel Aerodrome |
Ocho Rios, Jamaica |
| OCN |
KOKB |
Oceanside Municipal Airport |
Oceanside, California, United States |
| OCQ |
KOCQ |
J. Douglas Bake Memorial Airport |
Oconto, Wisconsin, United States |
| OCW |
KOCW |
Warren Field |
Washington, North Carolina, United States |
| ODE |
EKOD |
Odense Airport |
Odense, Denmark |
| ODH |
EGVO |
RAF Odiham |
Odiham, United Kingdom |
| ODO |
KODO |
Odessa-Schlemeyer Field |
Odessa, Texas, United States |
| ODS |
UKOO |
Odessa International Airport |
Odessa, Ukraine |
| ODX |
KODX |
Evelyn Sharp Field |
Ord, Nebraska, United States |
| OEA |
KOEA |
O'Neal Airport |
Vincennes, Indiana, United States |
| OEB |
KOEB |
Branch County Memorial Airport |
Coldwater, Michigan, United States |
| OEL |
KOEL |
Oakley Municipal Airport |
Oakley, Kansas, United States |
| OEM |
SMPA |
Vincent Fayks Airport |
Paloemeu, Suriname |
| OEO |
KOEO |
L. O. Simenstad Municipal Airport |
Osceola, Wisconsin, United States |
| OER |
ESNO |
Örnsköldsvik Airport |
Örnsköldsvik, Sweden |
| OFF |
KOFF |
Offutt AFB |
Omaha, Nebraska, United States |
| OFK |
KOFK |
Karl Stefan Memorial Airport |
Norfolk, Nebraska, United States |
| OFP |
KOFP |
Hanover County Municipal Airport |
Richmond/Ashland, Virginia, United States |
| OFU |
|
Ofu Airport |
Ofu, American Samoa |
| 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 |
| OGG |
PHOG |
Kahului Airport |
Kahului, Hawaii, United States |
| OGL |
SYGO |
Ogle Airport |
Georgetown, Guyana |
| OGM |
KOGM |
Ontonagon County Airport |
Ontonagon, Michigan, United States |
| OGR |
FTTB |
Bongor Airport |
Bongor, Chad |
| OGS |
KOGS |
Ogdensburg International Airport |
Ogdensburg, New York, United States |
| OHD |
LWOH |
Ohrid Airport |
Ohrid, Republic of Macedonia |
| OHH |
|
Okha Airport |
Okha, Russia |
| OHT |
OPKT |
Kohat Airport |
Kohat, Pakistan |
| OIC |
KOIC |
Lt. Warren Eaton Airport |
Norwich, New York, United States |
| OIN |
KOIN |
Oberlin Municipal Airport |
Oberlin, Kansas, United States |
| OIR |
RJEO |
Okushiri Airport |
Okushiri, Okushiri Island, Hokkaido, Japan |
| OIT |
RJFO |
Oita Airport |
Oita, Japan |
| OJA |
KOJA |
Thomas P. Stafford Airport |
Weatherford, Oklahoma, United States |
| OJC |
KOJC |
Johnson County Executive Airport |
Olathe, Kansas, United States |
| OKA |
ROAH |
Naha Airport |
Okinawa, Japan |
| OKB |
|
Orchid Beach |
Fraser Island, Queensland,Australia |
| OKC |
KOKC |
Will Rogers World Airport |
Oklahoma City, Oklahoma, United States |
| OKJ |
RJOB |
Okayama Airport |
Okayama, Japan |
| OKK |
KOKK |
Kokomo Municipal Airport |
Kokomo, Indiana, United States |
| OKM |
KOKM |
Okmulgee Regional Airport |
Okmulgee, Oklahoma, United States |
| OKS |
KOKS |
Garden County Airport |
Oshkosh, Nebraska, United States |
| OKZ |
KOKZ |
Kaolin Field |
Sandersville, Georgia, United States |
| OLB |
LIEO |
Olbia-Costa Smeralda Airport |
Olbia, Italy |
| 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 |
| OLG |
KOLG |
Solon Springs Municipal Airport |
Solon Springs, Wisconsin, United States |
| OLH |
|
Old Harbor Airport |
Old Harbor, Alaska, United States |
| OLM |
KOLM |
Olympia Airport |
Olympia, Washington, United States |
| OLS |
KOLS |
Nogales International Airport |
Nogales, Arizona, United States |
| OLU |
KOLU |
Columbus Municipal Airport (Nebraska) |
Columbus, Nebraska, United States |
| OLV |
KOLV |
Olive Branch Airport |
Olive Branch, Mississippi, United States |
| OLY |
KOLY |
Olney-Noble Airport |
Olney-Noble, Illinois, United States |
| OLZ |
KOLZ |
Oelwein Municipal Airport |
Oelwein, Iowa, United States |
| OMA |
KOMA |
Eppley Airfield |
Omaha, Nebraska, United States |
| OMC |
RPVO |
Ormoc Airport |
Ormoc City, Philippines |
| OME |
PAOM |
Nome Airport |
Nome, Alaska, United States |
| OMH |
KOMH |
Orange County Airport |
Orange, Virginia, United States |
| OMI |
OIAJ |
Omidiyeh Air Base |
Omidiyeh, Iran |
| OMK |
KOMK |
Omak Airport |
Omak, Washington, United States |
| OMN |
|
Osmanabad Airport |
Osmanabad, India |
| OMR |
LROD |
Oradea International Airport |
Oradea, Romania |
| OMS |
UNOO |
Omsk Airport |
Omsk, Russia |
| ONA |
KONA |
Winona Municipal Airport (Max Conrad Field) |
Winona, Minnesota, United States |
| ONJ |
RJSR |
Odate-Noshiro Airport |
Kitaakita, Akita, Japan |
| ONL |
KONL |
The 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 |
| ONT |
KONT |
Ontario International Airport |
Ontario (near Los Angeles), California, United States |
| ONX |
MPEJ |
Enrique Adolfo Jiménez Airport |
Colón, Panama |
| ONY |
KONY |
Olney Municipal Airport |
Olney, Texas, United States |
| ONZ |
KONZ |
Grosse Ile Municipal Airport |
Detroit/Grosse Ile, Michigan, United States |
| 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, Queensland, Australia |
| OPF |
KOPF |
Opa-locka Airport |
Miami, Florida, United States |
| OPL |
KOPL |
St. Landry Parish Airport (Ahart Field) |
Opelousas, Louisiana, United States |
| OPN |
KOPN |
Thomaston-Upson County Airport |
Thomaston, Georgia, United States |
| OPO |
LPPR |
Francisco Sá Carneiro Airport |
Porto, Portugal |
| OQN |
KOQN |
Brandywine Airport |
West Chester, Pennsylvania, United States |
| OQU |
KOQU |
Quonset State Airport |
North Kingstown, Rhode Island, United States |
| OQW |
KOQW |
Maquoketa Municipal Airport |
Maquoketa, Iowa, United States |
| ORB |
ESOE |
Örebro Airport |
Örebro, Sweden |
| ORC |
KORC |
Orange City Municipal Airport |
Orange City, Iowa, United States |
| ORD |
KORD |
O'Hare International Airport (formerly Orchard Depot Field) |
Chicago, Illinois, United States |
| ORE |
LFOJ |
Orléans - Bricy Air Base |
Orléans, France |
| ORF |
KORF |
Norfolk International Airport |
Norfolk, Virginia (near Virginia Beach and Williamsburg), 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 |
SYDR |
Orinduik Airport |
Orinduik, Guyana |
| ORK |
EICK |
Cork Airport |
Cork, Ireland |
| ORL |
KORL |
Orlando Executive Airport |
Orlando, Florida, United States |
| ORM |
EGBK |
Sywell Aerodrome |
Northampton / Peterborough, United Kingdom |
| ORN |
DAOO |
Oran Airport Es Senia |
Oran, Algeria |
| ORS |
|
Waterport Airport |
Orpheus, Queensland, Australia |
| ORT |
PAOR |
Northway Airport |
Northway, Alaska, United States |
| ORV |
PFNO |
Robert (Bob) Curtis Memorial Airport (FAA: D76) |
Noorvik, Alaska, United States |
| ORY |
LFPO |
Orly International Airport |
Paris-Orly, Paris, France |
| OSA |
|
All Airports (code was used in Osaka International Airport) |
Osaka, Japan |
| OSC |
KOSC |
Oscoda-Wurtsmith Airport |
Oscoda, Michigan, United States |
| OSD |
ESNZ |
Åre Östersund Airport |
Östersund, Sweden |
| OSH |
KOSH |
Wittman Regional Airport |
Oshkosh, Wisconsin, United States |
| OSL |
ENGM |
Oslo Airport, Gardermoen (succeeding Oslo Airport, Fornebu) |
Ullensaker (near Oslo), Norway |
| OSR |
LKMT |
Ostrava-Mosnov International Airport |
Ostrava, Czech Republic |
| OSS |
UAFO |
Osh Airport |
Osh, Kyrgyzstan |
| OST |
EBOS |
Ostend-Bruges International Airport |
Flanders, Belgium |
| OSU |
KOSU |
Ohio State University Airport |
Columbus, Ohio, United States |
| OSX |
KOSX |
Kosciusko-Attala County Airport |
Kosciusko, Mississippi, United States |
| OSY |
ENNM |
Namsos Airport, Høknesøra |
Namsos, Norway |
| OTC |
FTTL |
Bol Airport |
Bol, Chad |
| OTG |
KOTG |
Worthington Municipal Airport |
Worthington, Minnesota, United States |
| OTH |
KOTH |
North Bend Municipal Airport |
North Bend, Oregon, United States |
| OTL |
GQNB |
Boutilimit Airport |
Boutilimit, Mauritania |
| OTM |
KOTM |
Ottumwa Industrial Airport |
Ottumwa, Iowa, United States |
| OTN |
KOTN |
Ed-Air Airport |
Oaktown, Indiana, United States |
| OTP |
LROP |
Henri Coanda International Airport |
Otopeni (near Bucharest), Romania |
| OTR |
MRCC |
Coto 47 Airport |
Coto 47, Costa Rica |
| OTZ |
PAOT |
Ralph Wien Memorial Airport |
Kotzebue, Alaska, United States |
| OUA |
DFFD |
Ouagadougou Airport |
Ouagadougou, Burkina Faso |
| OUD |
GMFO |
Oujda Angads Airport |
Oujda, Morocco |
| OUG |
DFCC |
Ouahigouya Airport |
Ouahigouya, Burkina Faso |
| OUL |
EFOU |
Oulu Airport |
Oulu, Finland |
| OUM |
|
Oum Hadjer Airport |
Oum Hadjer, Chad |
| OUN |
KOUN |
University of Oklahoma Westheimer Airport |
Norman, Oklahoma, United States |
| OUR |
FKKI |
Batouri Airport |
Batouri, Cameroon |
| OUT |
FTTS |
Bousso Airport |
Bousso, Chad |
| OUZ |
GQPZ |
Tazadit Airport |
Zouerate, Mauritania |
| OVB |
UNNT |
Novosibirsk Tolmachevo Airport |
Novosibirsk, Russia |
| OVD |
LEAS |
Asturias Airport (Oviedo Airport) |
Oviedo, Asturias, Spain |
| OVE |
KOVE |
Oroville Municipal Airport |
Oroville, California, United States |
| OVL |
KOVL |
Olivia Regional Airport |
Olivia, Minnesota, United States |
| OVO |
KOVO |
North Vernon Airport |
North Vernon, Indiana, United States |
| 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 |
| OWI |
KOWI |
Ottawa Municipal Airport |
Ottawa, Kansas, United States |
| OWK |
KOWK |
Central Maine Airport of Norridgewock |
Norridgewock, Maine, United States |
| OWX |
KOWX |
Putnam County Airport |
Ottawa, Ohio, United States |
| OXB |
GGOV |
Osvaldo Vieiro International Airport |
Bissau, Guinea-Bissau |
| OXC |
KOXC |
Waterbury-Oxford Airport |
Oxford, Connecticut, United States |
| OXD |
KOXD |
Miami University Airport |
Oxford, Ohio, United States |
| OXI |
KOXI |
Starke County Airport |
Knox, Indiana, United States |
| OXR |
KOXR |
Oxnard Airport |
Oxnard, California, United States |
| OXV |
KOXV |
Knoxville Municipal Airport |
Knoxville, Iowa, United States |
| OYK |
SBOI |
Oiapoque Airport |
Oiapoque, Amapa , Brasil |
| OZA |
KOZA |
Ozona Municipal Airport |
Ozona, Texas, United States |
| OZC |
RPMO |
Labo Airport |
Ozamiz City, Misamis Occidental, Philippines |
| OZR |
KOZR |
Cairns Army Airfield (Fort Rucker) |
Fort Rucker/Ozark, Alabama, United States |
| OZW |
KOZW |
Livingston County Airport |
Howell, Michigan, United States |
| OZZ |
GMMZ |
Ouarzazate Airport |
Ouarzazate, Morocco |
