Airports By Airport Code
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
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OAG |  | Springhill | Australia | AU | 802 |
| OAJ | | Albert J Ellis | United States | US | 67 |
| OAK | | Oakland International Airport | United States | US | 67 |
| OAL | | Cacoal | Brazil | BR | 316 |
| OAM | | Oamaru | New Zealand | NZ | 851 |
| OAN | | Olanchito | Honduras | HN | 131 |
| OAR | | Marina Municipal | United States | US | 67 |
| OAX | | Xoxocotlan | Mexico | MX | 148 |
| OBA | | Oban | Australia | AU | 802 |
| OBC | | Obock | Djibouti | DJ | 525 |
| OBD | | Obano | Indonesia | ID | 832 |
| OBE | | County | United States | US | 67 |
| OBF | | Oberpfaffenhofen | Germany | DE | 429 |
| OBI | | Obidos | Brazil | BR | 316 |
| OBL | | Oostmalle | Belgium | BE | 409 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OBM | | Morobe | Papua New Guinea | PG | 804 |
| OBN | | Oban Airport | United Kingdom | GB | 493 |
| OBO | | Obihiro | Japan | JP | 736 |
| OBS | | Vals-Lanas | France | FR | 427 |
| OBT | | Oakland/Coliseum Stat | United States | US | 67 |
| OBU | | Kobuk | United States | US | 67 |
| OBX | | Obo | Papua New Guinea | PG | 804 |
| OBY | | Ittoqqortoormiit | Greenland | GL | 975 |
| OCA | | Ocean Reef | United States | US | 67 |
| OCC | | Coca | Ecuador | EC | 337 |
| OCE | | Municipal | United States | US | 67 |
| OCF | | Ocala International | United States | US | 67 |
| OCH | | A L Mangham Jr. Regional | United States | US | 67 |
| OCI | | Oceanic | United States | US | 67 |
| OCJ | | Boscobel | Jamaica | JM | 243 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OCN | | Municipal | United States | US | 67 |
| OCV | | Aguasclaras | Colombia | CO | 327 |
| OCW | | Warren Field | United States | US | 67 |
| ODA | | Ouadda | Central African Republic | CF | 509 |
| ODB | | Cordoba | Spain | ES | 482 |
| ODD | | Oodnadatta | Australia | AU | 802 |
| ODE | | Beldringe | Denmark | DK | 419 |
| ODH | | RAF Station | United Kingdom | GB | 493 |
| ODJ | | Ouanda Djalle | Central African Republic | CF | 509 |
| ODL | | Cordillo Downs | Australia | AU | 802 |
| ODN | | Long Seridan | Malaysia | MY | 749 |
| ODR | | Ord River | Australia | AU | 802 |
| ODS | | Odessa International | Ukraine | UA | 488 |
| ODW | | Oak Harbor | United States | US | 67 |
| ODY | | Oudomxai | Laos | LA | 744 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OEA | | Oneal | United States | US | 67 |
| OEC | | Ocussi | Indonesia | ID | 832 |
| OEL | | Orel | Russian Federation | RU | 770 |
| OEM | | Vincent Fayks | Suriname | SR | 379 |
| OEO | | L O Simenstad Municipal | United States | US | 67 |
| OER | | Ornskoldsvik | Sweden | SE | 484 |
| OES | | San Antonio Oeste | Argentina | AR | 303 |
| OFI | | Ouango Fitini | Cote D'Ivoire (Ivory Coast) | CI | 533 |
| OFJ | | Olafsfjordur | Iceland | IS | 439 |
| OFK | | Stefan Field | United States | US | 67 |
| OFU | | Ofu Island Airstrip | American Samoa | AS | 5 |
| OGA | | Searle Field | United States | US | 67 |
| OGB | | Municipal | United States | US | 67 |
| OGD | | Municipal | United States | US | 67 |
| OGE | | Ogeranang | Papua New Guinea | PG | 804 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OGG | | Kahului | United States | US | 67 |
| OGL | | Ogle | Guyana | GY | 350 |
| OGN | | Yonaguni Jima | Japan | JP | 736 |
| OGO | | Abengourou | Cote D'Ivoire (Ivory Coast) | CI | 533 |
| OGR | | Bongor | Chad | TD | 511 |
| OGS | | Ogdensburg International | United States | US | 67 |
| OGV | | Ongava Game Reserve | Namibia | NA | 575 |
| OGX | | Ain Beida | Algeria | DZ | 500 |
| OGZ | | Vladikavkaz | Russian Federation | RU | 770 |
| OHA | | Royal Air Force Base | New Zealand | NZ | 851 |
| OHC | | AFS | United States | US | 67 |
| OHD | | Ohrid | Macedonia | MK | 497 |
| OHI | | Oshakati | Namibia | NA | 575 |
| OHO | | Okhotsk | Russian Federation | RU | 770 |
| OHP | | Heliport | United Kingdom | GB | 493 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OHR | | Wyk Auf Foehr | Germany | DE | 429 |
| OHT | | Kohat | Pakistan | PK | 764 |
| OIA | | Ourilandia | Brazil | BR | 316 |
| OIC | | Eaton | United States | US | 67 |
| OIL | | Splane Memorial | United States | US | 67 |
| OIM | | Oshima | Japan | JP | 736 |
| OIR | | Okushiri | Japan | JP | 736 |
| OIT | | Oita | Japan | JP | 736 |
| OJC | | Johnson County Executive | United States | US | 67 |
| OKA | | Naha AB | Japan | JP | 736 |
| OKB | | Fraser Island | Australia | AU | 802 |
| OKC | | Will Rogers World Airport | United States | US | 67 |
| OKD | | Okadama | Japan | JP | 736 |
| OKE | | Okino Erabu | Japan | JP | 736 |
| OKF | | Okaukuejo | Namibia | NA | 575 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OKG | | Okoyo | Republic of the Congo | CG | 515 |
| OKH | | Cottesmor RAF | United Kingdom | GB | 493 |
| OKI | | Oki Island | Japan | JP | 736 |
| OKJ | | Okayama | Japan | JP | 736 |
| OKK | | Kokomo | United States | US | 67 |
| OKL | | Oksibil | Indonesia | ID | 832 |
| OKM | | Okmulgee | United States | US | 67 |
| OKN | | Okondja | Gabon | GA | 526 |
| OKO | | Yokota AFB | Japan | JP | 736 |
| OKP | | Oksapmin | Papua New Guinea | PG | 804 |
| OKQ | | Okaba | Indonesia | ID | 832 |
| OKR | | Yorke Island | Australia | AU | 802 |
| OKS | | Garden County | United States | US | 67 |
| OKT | | Oktiabrskij | Russian Federation | RU | 770 |
| OKU | | Mokuti Lodge | Namibia | NA | 575 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OKV | | Okao | Papua New Guinea | PG | 804 |
| OKY | | Oakey | Australia | AU | 802 |
| OLA | | Orland | Norway | NO | 465 |
| OLB | | Costa Smeralda | Italy | IT | 450 |
| OLD | | Old Town | United States | US | 67 |
| OLE | | Municipal | United States | US | 67 |
| OLF | | International | United States | US | 67 |
| OLH | | Old Harbor SPB | United States | US | 67 |
| OLI | | Rif | Iceland | IS | 439 |
| OLJ | | Olpoi | Vanuatu | VU | 885 |
| OLK | | Fuerte Olimpo | Paraguay | PY | 365 |
| OLM | | Olympia Regional | United States | US | 67 |
| OLN | | Colonia Sarmiento | Argentina | AR | 303 |
| OLO | | Olomouc | Czech Republic | CZ | 418 |
| OLP | | Olympic Dam | Australia | AU | 802 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OLQ | | Olsobip | Papua New Guinea | PG | 804 |
| OLS | | Nogales International | United States | US | 67 |
| OLU | | Columbus Municipal | United States | US | 67 |
| OLV | | Olive Branch Arpt | United States | US | 67 |
| OLY | | Olney-Noble | United States | US | 67 |
| OMA | | Eppley Airfield | United States | US | 67 |
| OMB | | Omboue | Gabon | GA | 526 |
| OMC | | Ormoc | Philippines | PH | 766 |
| OMD | | Oranjemund | Namibia | NA | 575 |
| OME | | Nome | United States | US | 67 |
| OMF | | King Hussein | Jordan | JO | 639 |
| OMG | | Omega | Namibia | NA | 575 |
| OMH | | Urmieh | Iran | IR | 632 |
| OMI | | Omidieh | Iran | IR | 632 |
| OMJ | | Omura | Japan | JP | 736 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OMK | | Municipal | United States | US | 67 |
| OML | | Omkalai | Papua New Guinea | PG | 804 |
| OMM | | Marmul | Oman | OM | 658 |
| OMN | | Osmanabad | India | IN | 733 |
| OMO | | Mostar International | Bosnia And Herzegovina | BA | 410 |
| OMR | | Oradea | Romania | RO | 473 |
| OMS | | Omsk | Russian Federation | RU | 770 |
| OMY | | Oddor Meanche | Cambodia | KH | 709 |
| ONA | | Municipal | United States | US | 67 |
| ONB | | Ononge | Papua New Guinea | PG | 804 |
| OND | | Ondangwa | Namibia | NA | 575 |
| ONE | | Onepusu | Solomon Islands | SB | 874 |
| ONG | | Mornington | Australia | AU | 802 |
| ONH | | Municipal | United States | US | 67 |
| ONI | | Moanamani | Indonesia | ID | 832 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| ONJ | | Odate Noshiro | Japan | JP | 736 |
| ONL | | Municipal | United States | US | 67 |
| ONM | | Socorro | United States | US | 67 |
| ONN | | Onion Bay | United States | US | 67 |
| ONO | | Ontario Municipal Airport | United States | US | 67 |
| ONP | | Newport | United States | US | 67 |
| ONQ | | Zonguldak | Turkey | TR | 679 |
| ONR | | Monkira | Australia | AU | 802 |
| ONS | | Onslow | Australia | AU | 802 |
| ONT | | Ontario International | United States | US | 67 |
| ONU | | Ono I Lau | Fiji | FJ | 821 |
| ONX | | Enrique Adolfo Jimenez | Panama | PA | 162 |
| ONY | | Olney | United States | US | 67 |
| OOA | | Municipal | United States | US | 67 |
| OOK | | Toksook Bay | United States | US | 67 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OOL | | Gold Coast (coolangatta) | Australia | AU | 802 |
| OOM | | Cooma | Australia | AU | 802 |
| OOR | | Mooraberree | Australia | AU | 802 |
| OOT | | Onotoa | Kiribati | KI | 824 |
| OPA | | Kopasker | Iceland | IS | 439 |
| OPB | | Open Bay | Papua New Guinea | PG | 804 |
| OPF | | Opa Locka | United States | US | 67 |
| OPI | | Oenpelli | Australia | AU | 802 |
| OPL | | St Landry Parish | United States | US | 67 |
| OPO | | Francisco Sá Carneiro | Portugal | PT | 469 |
| OPS | | Sinop | Brazil | BR | 316 |
| OPU | | Balimo | Papua New Guinea | PG | 804 |
| OPW | | Opuwa | Namibia | NA | 575 |
| ORA | | Oran | Argentina | AR | 303 |
| ORB | | Orebro-Bofors | Sweden | SE | 484 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| ORC | | Orocue | Colombia | CO | 327 |
| ORD | | Chicago O'Hare International | United States | US | 67 |
| ORE | | Bricy | France | FR | 427 |
| ORF | | Norfolk International | United States | US | 67 |
| ORG | | Zorg En Hoop | Suriname | SR | 379 |
| ORH | | Worcester Regional | United States | US | 67 |
| ORI | | Port Lions SPB | United States | US | 67 |
| ORJ | | Orinduik | Guyana | GY | 350 |
| ORK | | Cork | Ireland | IE | 441 |
| ORL | | Orlando Executive | United States | US | 67 |
| ORM | | Northampton | United Kingdom | GB | 493 |
| ORN | | Es Senia | Algeria | DZ | 500 |
| ORO | | Yoro | Honduras | HN | 131 |
| ORP | | Orapa | Botswana | BW | 510 |
| ORQ | | Heliport | United States | US | 67 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| ORR | | Yorketown | Australia | AU | 802 |
| ORS | | Waterport | Australia | AU | 802 |
| ORT | | Northway | United States | US | 67 |
| ORU | | Oruro | Bolivia | BO | 312 |
| ORV | | Curtis Memorial | United States | US | 67 |
| ORW | | Ormara | Pakistan | PK | 764 |
| ORX | | Oriximina | Brazil | BR | 316 |
| ORY | | Orly | France | FR | 427 |
| ORZ | | Orange Walk | Belize | BZ | 106 |
| OSB | | Osage Beach | United States | US | 67 |
| OSC | | Oscoda-Wurtsmith AFB | United States | US | 67 |
| OSD | | Ĺre Östersund | Sweden | SE | 484 |
| OSE | | Omora | Papua New Guinea | PG | 804 |
| OSG | | Ossima | Papua New Guinea | PG | 804 |
| OSH | | Wittman Field | United States | US | 67 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OSI | | Osijek | Croatia | HR | 415 |
| OSK | | Oskarshamn | Sweden | SE | 484 |
| OSL | | Oslo (Gardermoen) | Norway | NO | 465 |
| OSM | | Mosul | Iraq | IQ | 634 |
| OSN | | Osan AB | Republic of Korea | KR | 778 |
| OSP | | Redzikowo | Poland | PL | 467 |
| OSR | | Mosnov | Czech Republic | CZ | 418 |
| OSS | | Osh International Airport | Kyrgyzstan | KG | 743 |
| OST | | Ostend/Bruges International Airport | Belgium | BE | 409 |
| OSU | | Ohio State University | United States | US | 67 |
| OSW | | Orsk | Russian Federation | RU | 770 |
| OSX | | Attala County | United States | US | 67 |
| OSY | | Namsos | Norway | NO | 465 |
| OSZ | | Zegrze Pomorskie AB | Poland | PL | 467 |
| OTA | | Mota | Ethiopia | ET | 522 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OTC | | Bol | Chad | TD | 511 |
| OTD | | Contadora | Panama | PA | 162 |
| OTG | | Worthington | United States | US | 67 |
| OTH | | North Bend | United States | US | 67 |
| OTI | | Morotai Island | Indonesia | ID | 832 |
| OTJ | | Otjiwarongo | Namibia | NA | 575 |
| OTL | | Boutilimit | Mauritania | MR | 545 |
| OTM | | Industrial | United States | US | 67 |
| OTN | | Green | United States | US | 67 |
| OTO | | Vor | United States | US | 67 |
| OTP | | Henri Coanda | Romania | RO | 473 |
| OTR | | Coto 47 | Costa Rica | CR | 110 |
| OTS | | Anacortes | United States | US | 67 |
| OTU | | Otu | Colombia | CO | 327 |
| OTV | | Ontong Java | Solomon Islands | SB | 874 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OTY | | Oria | Papua New Guinea | PG | 804 |
| OTZ | | Ralph Wien Memorial | United States | US | 67 |
| OUA | | Ouagadougou | Burkina Faso | BF | 226 |
| OUD | | Les Anglades | Morocco | MA | 548 |
| OUE | | Ouesso | Republic of the Congo | CG | 515 |
| OUG | | Ouahigouya | Burkina Faso | BF | 593 |
| OUH | | Oudtshoorn | South Africa | ZA | 562 |
| OUI | | Ban Houei | Laos | LA | 744 |
| OUK | | Outer Skerries | United Kingdom | GB | 493 |
| OUL | | Oulu | Finland | FI | 425 |
| OUM | | Oum Hadjer | Chad | TD | 511 |
| OUN | | Max Westheimer | United States | US | 67 |
| OUR | | Batouri | Cameroon | CM | 504 |
| OUS | | Ourinhos | Brazil | BR | 316 |
| OUT | | Bousso | Chad | TD | 511 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OUU | | Ouanga | Gabon | GA | 526 |
| OUZ | | Zouerate | Mauritania | MR | 545 |
| OVA | | Bekily | Madagascar | MG | 541 |
| OVB | | Tolmachevo | Russian Federation | RU | 770 |
| OVD | | Asturias | Spain | ES | 482 |
| OVE | | Oroville | United States | US | 67 |
| OVG | | Overberg (FAOB) | South Africa | ZA | 562 |
| OVL | | Ovalle | Chile | CL | 324 |
| OVR | | Olavarria | Argentina | AR | 303 |
| OWA | | Owatonna | United States | US | 67 |
| OWB | | Daviess County | United States | US | 67 |
| OWD | | Memorial | United States | US | 67 |
| OWE | | Owendo | Gabon | GA | 526 |
| OWK | | Central Maine Airport of Norridgewock | United States | US | 67 |
| OXB | | Osvaldo Vieira International | Guinea-Bissau | GW | 559 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OXC | | Waterbury-Oxford | United States | US | 67 |
| OXD | | Miami University | United States | US | 67 |
| OXF | | Oxford (Kidlington) | United Kingdom | GB | 493 |
| OXO | | Orientos | Australia | AU | 802 |
| OXR | | Ventura County Camarillo | United States | US | 67 |
| OXY | | Morney | Australia | AU | 802 |
| OYA | | Goya | Argentina | AR | 303 |
| OYE | | Oyem | Gabon | GA | 526 |
| OYG | | Moyo | Uganda | UG | 590 |
| OYK | | Oiapoque | Brazil | BR | 316 |
| OYL | | Moyale | Kenya | KE | 535 |
| OYN | | Ouyen | Australia | AU | 802 |
| OYO | | Tres Arroyos | Argentina | AR | 303 |
| OYP | | St-Georges de lOyapock | French Guiana | GF | 344 |
| OYS | | Yosemite Ntl Park | United States | US | 67 |
| Airport Code | Airport name | Country Name | Country Abbrev. | World Area Code | |
| OZA | | Ozona Municipal | United States | US | 67 |
| OZC | | Labo | Philippines | PH | 766 |
| OZG | | Zagora Airport | Morocco | MA | 548 |
| OZH | | Zaporizhia | Ukraine | UA | 488 |
| OZI | | Bobadilla | Spain | ES | 482 |
| OZP | | Moron | Spain | ES | 482 |
| OZR | | Cairns AAF | United States | US | 67 |
| OZU | | Montilla | Spain | ES | 482 |
| OZZ | | Ouarzazate | Morocco | MA | 548 |