Appendix:IATA airport codes/O

OA

 * 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

OB

 * OBE (KOBE): Okeechobee County Airport, Okeechobee, Florida, United States
 * OBU, Kobuk Airport, Kobuk, Alaska, United States

OC

 * 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
 * OCQ (KOCQ): J. Douglas Bake Memorial Airport, Oconto, Wisconsin, United States
 * OCW (KOCW): Warren Field, Washington, North Carolina, United States

OD

 * 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 Central Airport, Odessa, Ukraine
 * ODX (KODX): Evelyn Sharp Field, Ord, Nebraska, United States

OE

 * 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

OF

 * 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

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
 * OGG (PHOG): Kahului Airport, Kahului, Hawaii, United States
 * OGL (SYGO): Ogle Airport, Ogle, Guyana
 * OGM (KOGM): Ontonagon County Airport, Ontonagon, Michigan, United States
 * OGS (KOGS): Ogdensburg International Airport, Ogdensburg, New York, United States

OH

 * OHD (LWOH): Ohrid Airport, Ohrid, Republic of Macedonia
 * OHT (OPKT): Kohat Airport, Kohat, Pakistan

OI

 * OIC (KOIC): Lt. Warren Eaton Airport, Norwich, New York, United States
 * OIN (KOIN): Oberlin Municipal Airport, Oberlin, Kansas, United States
 * OIT (RJFO): Oita Airport, Oita, Japan

OJ

 * OJA (KOJA): Thomas P. Stafford Airport, Weatherford, Oklahoma, United States
 * OJC (KOJC): Johnson County Executive Airport, Olathe, Kansas, United States

OK

 * OKA (ROAH): Naha Airport, Okinawa, Japan
 * OKB (KOKB): Oceanside Municipal Airport, Oceanside, California, United States
 * 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
 * OKV (KOKV): Winchester Regional Airport, Winchester, Virginia, United States
 * OKZ (KOKZ): Kaolin Field, Sandersville, Georgia, United States

OL

 * OLD (KOLD): Old Town Municipal Airport (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
 * 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

OM

 * OMA (KOMA): Eppley Airfield, Omaha, Nebraska, United States
 * OME (PAOM): Nome Airport, Nome, Alaska, United States
 * OMH (KOMH): Orange County Airport, Orange, Virginia, United States
 * OMK (KOMK): Omak Airport, Omak, Washington, United States
 * OMN (KOMN): Ormond Beach Municipal Airport, Ormond Beach, Florida, United States
 * OMR (LROD): Oradea International Airport, Oradea, Romania
 * OMS (UNOO): Tsentralny Airport (Omsk Airport), Omsk, Russia

ON

 * ONA (KONA): Winona Municipal Airport (Max Conrad Field): Winona, Minnesota, United States
 * 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 (KONX): Currituck County Airport, Currituck, North Carolina, United States
 * ONY (KONY): Olney Municipal Airport, Olney, Texas, United States
 * ONZ (KONZ): Grosse Ile Municipal Airport, Detroit/Grosse Ile, Michigan, 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, Queensland, Australia

OP

 * 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

OQ

 * 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

OR

 * 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 (KORE): Orange Municipal Airport, Orange, Massachusetts, United States
 * ORF (KORF): Norfolk International Airport, Norfolk, Virginia (near Virginia Beach and Williamsburg), United States
 * ORG (KORG): Orange County Airport (Texas): Orange, Texas, 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 International Airport, Cork, Ireland
 * ORL (KORL): Orlando Executive Airport, Orlando, Florida, United States
 * ORM (EGBK): Sywell Aerodrome, Northampton / Peterborough, United Kingdom
 * ORS, Waterport Airport, Orpheus, Queensland, Australia
 * ORT (PAOR): Northway Airport, Northway, Alaska, United States
 * ORY (LFPO): Orly International Airport, Paris-Orly, Paris, France

OS

 * OSA (RJBB): Kansai 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
 * OSI (LDOS): Osijek International Airport, Osijek, Croatia
 * OSL (ENGM): Oslo Airport, Gardermoen, 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

OT

 * OTG (KOTG): Worthington Municipal Airport, Worthington, Minnesota, United States
 * OTH (KOTH): North Bend Municipal Airport, North Bend, Oregon, United States
 * OTM (KOTM): Ottumwa Industrial Airport, Ottumwa, Iowa, United States
 * OTN (KOTN): Ed-Air Airport, Oaktown, Indiana, United States
 * OTR (MRCC): Coto 47 Airport, Coto 47, Costa Rica
 * OTP (LROP): Henri Coandă International Airport, Otopeni (near Bucharest), Romania
 * OTZ (PAOT): Ralph Wien Memorial Airport, Kotzebue, Alaska, United States

OU

 * OUA (DFFD): Ouagadougou Airport, Ouagadougou, Burkina Faso
 * OUD (GMFO): Oujda Angads Airport, Oujda, Morocco
 * OUL (EFOU): Oulu Airport, Oulu, Finland
 * OUL, Nelson Lagoon Airport, Nelson Lagoon, Alaska, United States
 * OUN (KOUN): University of Oklahoma Westheimer Airport, Norman, Oklahoma, United States
 * OUZ (GQPZ): Tazadit Airport, Zouerate, Mauritania

OV

 * 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
 * OVS (KOVS): Boscobel Airport, Boscobel, Wisconsin, United States

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
 * 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

OX

 * 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

OY

 * OYM (KOYM): St. Marys Municipal Airport, St. Marys, Pennsylvania, United States


 * OYK (SBOI): Oiapoque Airport ; Oiapoque, Amapa, Brasil

OZ

 * OZA (KOZA): Ozona Municipal Airport, Ozona, Texas, United States
 * OZR (KOZR): Cairns Army Airfield (Fort Rucker), Fort Rucker/Ozark, Alabama, United States
 * OZW (KOZW): Livingston County Airport, Howell, Michigan, United States