| ONL |
O'Neill Municipal Airport–John L Baker Field |
O'Neill |
🇺🇸 A.S |
| NUW |
Whidbey Island Naval Air Station (Ault Field) |
Oak Harbor |
🇺🇸 A.S |
| ODW |
AJ Eisenberg Airport |
Oak Harbor |
🇺🇸 A.S |
| ODC |
Oakdale Airport |
Oakdale |
🇺🇸 A.S |
| OAK |
San Francisco Bay Oakland International Airport |
Oakland |
🇺🇸 A.S |
| OTN |
Ed-Air Airport |
Oaktown |
🇺🇸 A.S |
| OAX |
Xoxocotlán International Airport |
Oaxaca |
🇲🇽 Mexico |
| SZS |
Ryan's Creek Aerodrome |
Oban |
🇳🇿 New Zealand |
| OBD |
Obano Airport |
Obano |
🇮🇩 Indonesia |
| OBO |
Tokachi-Obihiro Airport |
Obihiro |
🇯🇵 Jepun |
| OBX |
Obo Airport |
Obo |
🇵🇬 Papua New Guinea |
| OBC |
Obock Airport |
Obock |
🇩🇯 Djibouti |
| YDW |
North of Sixty Airport |
Obre Lake |
🇨🇦 Kanada |
| OCF |
Ocala International Airport - Jim Taylor Field |
Ocala |
🇺🇸 A.S |
| OCV |
Aguas Claras Airport |
Ocaña |
🇨🇴 Colombia |
| OCE |
Ocean City Municipal Airport |
Ocean City |
🇺🇸 A.S |
| OCN |
Oceanside Municipal Airport |
Oceanside |
🇺🇸 A.S |
| ODE |
Odense Hans Christian Andersen Airport |
Odense |
🇩🇰 Denmark |
| ODS |
Odesa International Airport |
Odesa |
🇺🇦 Ukraine |
| ODT |
Odessa Schlemeyer Field |
Odessa |
🇺🇸 A.S |
| KEO |
Odienne Airport |
Odienne |
🇨🇮 Cote d’Ivoire |
| OEC |
Oecusse Route of the Sandalwood International Airport |
Oecussi-Ambeno |
🇹🇱 Timor-Leste |
| HEI |
Heide-Büsum Airport |
Oesterdeichstrich |
🇩🇪 Jerman |
| OFU |
Ofu Airport |
Ofu |
🇦🇸 Samoa Amerika |
| OGA |
Ogallala Municipal Airport Searle Field |
Ogallala |
🇺🇸 A.S |
| IWO |
Ioto (Iwo Jima) Airbase |
Ogasawara |
🇯🇵 Jepun |
| MUS |
JMSDF Minami Torishima Air Base |
Ogasawara |
🇯🇵 Jepun |
| HIF |
Hill Air Force Base |
Ogden |
🇺🇸 A.S |
| OGD |
Ogden Hinckley Airport |
Ogden |
🇺🇸 A.S |
| OGS |
Ogdensburg International Airport |
Ogdensburg |
🇺🇸 A.S |
| OGL |
Eugene F. Correia International Airport |
Ogle |
🇬🇾 Guyana |
| YOG |
Ogoki Post Airport |
Ogoki Post |
🇨🇦 Kanada |
| OHD |
Ohrid St. Paul the Apostle Airport |
Ohrid |
🇲🇰 Macedonia Utara |
| OYK |
Oiapoque Airport |
Oiapoque |
🇧🇷 Brazil |
| OIT |
Oita Airport |
Oita |
🇯🇵 Jepun |
| OKQ |
Okaba Airport |
Okaba |
🇮🇩 Indonesia |
| OKV |
Okao Airport |
Okao |
🇵🇬 Papua New Guinea |
| KSA |
Kosrae International Airport |
Okat |
🇫🇲 Micronesia |
| OKF |
Okaukuejo Airport |
Okaukuejo |
🇳🇦 Namibia |
| OKJ |
Okayama Momotaro Airport |
Okayama |
🇯🇵 Jepun |
| OBE |
Okeechobee County Airport |
Okeechobee |
🇺🇸 A.S |
| OHH |
Okha Airport |
Okha |
🇷🇺 Rusia |
| OHO |
Okhotsk Airport |
Okhotsk |
🇷🇺 Rusia |
| DNA |
Kadena Air Base |
Okinawa |
🇯🇵 Jepun |
| OKI |
Oki Global Geopark Airport |
Okinoshima |
🇯🇵 Jepun |
| OKC |
OKC Will Rogers World Airport |
Oklahoma City |
🇺🇸 A.S |
| PWA |
Wiley Post Airport |
Oklahoma City |
🇺🇸 A.S |
| TIK |
Tinker Air Force Base |
Oklahoma City |
🇺🇸 A.S |
| OKM |
Okmulgee Regional Airport |
Okmulgee |
🇺🇸 A.S |
| RTL |
Spirit Lake Municipal Airport |
Okoboji |
🇺🇸 A.S |
| OKN |
Okondja Airport |
Okondja |
🇬🇦 Gabon |
| OKG |
Okoyo Airport |
Okoyo |
🇨🇬 Congo - Brazzaville |
| QRW |
Warri Airport |
Okpe |
🇳🇬 Nigeria |
| OKP |
Oksapmin Airport |
Oksapmin |
🇵🇬 Papua New Guinea |
| OKL |
Oksibil Airport |
Oksibil |
🇮🇩 Indonesia |
| OIR |
Okushiri Airport |
Okushiri Island |
🇯🇵 Jepun |
| ASV |
Amboseli Airport |
Ol Tukai |
🇰🇪 Kenya |
| OAN |
El Arrayán Airport |
Olanchito |
🇭🇳 Honduras |
| OJC |
Johnson County Executive Airport |
Olathe |
🇺🇸 A.S |
| OVR |
Olavarria Airport |
Olavarria |
🇦🇷 Argentina |
| OLB |
Olbia Costa Smeralda Airport |
Olbia (SS) |
🇮🇹 Itali |
| YOC |
Old Crow Airport |
Old Crow |
🇨🇦 Kanada |
| OLH |
Old Harbor Airport |
Old Harbor |
🇺🇸 A.S |
| OLD |
Dewitt Field - Old Town Municipal Airport |
Old Town |
🇺🇸 A.S |
| OLE |
Cattaraugus County-Olean Airport |
Olean |
🇺🇸 A.S |
| ONK |
Olenyok Airport |
Olenyok |
🇷🇺 Rusia |
| OLV |
Olive Branch Airport |
Olive Branch |
🇺🇸 A.S |
| GMV |
Monument Valley Airport |
Oljato-Monument Valley |
🇺🇸 A.S |
| ONY |
Olney Municipal Airport |
Olney |
🇺🇸 A.S |
| OLY |
Olney Noble Airport |
Olney-Noble |
🇺🇸 A.S |
| OLO |
Olomouc Airport |
Olomouc |
🇨🇿 Czechia |
| SFS |
Subic Bay International Airport / Naval Air Station Cubi Point |
Olongapo |
🇵🇭 Filipina |
| OLJ |
North West Santo Airport |
Olpoi |
🇻🇺 Vanuatu |
| OLQ |
Olsobip Airport |
Olsobip |
🇵🇬 Papua New Guinea |
| OLM |
Olympia Regional Airport |
Olympia |
🇺🇸 A.S |
| OLP |
Olympic Dam Airport |
Olympic Dam |
🇦🇺 Australia |
| OLZ |
Olyokminsk Airport |
Olyokminsk |
🇷🇺 Rusia |
| MIQ |
Millard Airport |
Omaha |
🇺🇸 A.S |
| OFF |
Offutt Air Force Base |
Omaha |
🇺🇸 A.S |
| OMA |
Eppley Airfield |
Omaha |
🇺🇸 A.S |
| OMK |
Omak Airport |
Omak |
🇺🇸 A.S |
| OMB |
Omboue Hospital Airport |
Omboue |
🇬🇦 Gabon |
| OMG |
Omega Airport |
Omega |
🇳🇦 Namibia |
| AKW |
Aghajari Airport |
Omidiyeh |
🇮🇷 Iran |
| OMI |
Omidiyeh Airport |
Omidiyeh |
🇮🇷 Iran |
| IBR |
Ibaraki Airport |
Omitama |
🇯🇵 Jepun |
| MUJ |
Mui River Airport |
Omo National Park |
🇪🇹 Ethiopia |
| OSE |
Omora Airport |
Omora |
🇵🇬 Papua New Guinea |
| OMS |
Omsk Central Airport |
Omsk |
🇷🇺 Rusia |
| ONB |
Ononge Airport |
Onange Mission |
🇵🇬 Papua New Guinea |
| OND |
Ondangwa Airport |
Ondangwa |
🇳🇦 Namibia |
| ONH |
Albert S Nader Regional Airport |
Oneonta |
🇺🇸 A.S |
| ONU |
Ono-i-Lau Airport |
Ono-i-Lau |
🇫🇯 Fiji |
| OOT |
Onotoa Airport |
Onotoa |
🇰🇮 Kiribati |
| ONT |
Ontario International Airport |
Ontario |
🇺🇸 A.S |
| IUA |
Canandaigua Airport |
Ontario County IDA |
🇺🇸 A.S |
| FVR |
Oombulgurri Airport |
Oombulgurri |
🇦🇺 Australia |
| OST |
Ostend-Bruges International Airport |
Oostende |
🇧🇪 Belgium |
| YBS |
Opapimiskan Lake Airport |
Opapimiskan Lake |
🇨🇦 Kanada |
| OPL |
St Landry Parish Ahart Field |
Opelousas |
🇺🇸 A.S |
| OPW |
Opuwa Airport |
Opuwa |
🇳🇦 Namibia |
| OMR |
Oradea International Airport |
Oradea |
🇷🇴 Romania |
| OAG |
Orange Airport |
Orange |
🇦🇺 Australia |
| ORZ |
H.E Alfredo Martinez (Tower Hill) Airstrip |
Orange Walk |
🇧🇿 Belize |
| OGB |
Orangeburg Municipal Airport |
Orangeburg |
🇺🇸 A.S |
| OMD |
Oranjemund Airport |
Oranjemund |
🇳🇦 Namibia |
| AUA |
Queen Beatrix International Airport |
Oranjestad |
🇦🇼 Aruba |
| EUX |
F. D. Roosevelt Airport |
Oranjestad |
🇧🇶 Caribbean Netherlands |
| ORP |
Orapa Airport |
Orapa |
🇧🇼 Botswana |
| OKB |
Orchid Beach Airport |
Orchid Beach |
🇦🇺 Australia |
| KYD |
Lanyu Airport |
Orchid Island |
🇹🇼 Taiwan |
| ODR |
Ord River Airport |
Ord River |
🇦🇺 Australia |
| DSN |
Ordos Ejin Horo International Airport |
Ordos |
🇨🇳 China |
| OGU |
Ordu–Giresun Airport |
Ordu |
🇹🇷 Turkiye |
| ONO |
Ontario Municipal Airport |
Oregon |
🇺🇸 A.S |
| REN |
Orenburg Central Airport |
Orenburg |
🇷🇺 Rusia |
| OXO |
Orientos Airport |
Orientos |
🇦🇺 Australia |
| ORJ |
Orinduik Airport |
Orinduik |
🇬🇾 Guyana |
| BGY |
Il Caravaggio International Airport |
Orio al Serio (BG) |
🇮🇹 Itali |
| FNU |
Oristano-Fenosu Airport |
Oristano |
🇮🇹 Itali |
| ORX |
Oriximiná Airport |
Oriximiná |
🇧🇷 Brazil |
| TMT |
Trombetas Airport |
Oriximiná |
🇧🇷 Brazil |
| WRH |
Wuerhe Airport |
Orku |
🇨🇳 China |
| ISM |
Kissimmee Gateway Airport |
Orlando |
🇺🇸 A.S |
| MCO |
Orlando International Airport |
Orlando |
🇺🇸 A.S |
| ORL |
Orlando Executive Airport |
Orlando |
🇺🇸 A.S |
| SFB |
Orlando Sanford International Airport |
Orlando |
🇺🇸 A.S |
| ORW |
Ormara Airport |
Ormara Raik |
🇵🇰 Pakistan |
| OMC |
Ormoc Airport |
Ormoc City |
🇵🇭 Filipina |
| ORC |
Orocue Airport |
Orocue |
🇨🇴 Colombia |
| OVE |
Oroville Municipal Airport |
Oroville |
🇺🇸 A.S |
| TXC |
Orsha Airport - Balbasovo Air Base |
Orsha |
🇧🇾 Belarus |
| OSW |
Orsk Airport |
Orsk |
🇷🇺 Rusia |
| ORU |
Juan Mendoza International Airport |
Oruro |
🇧🇴 Bolivia |
| KJB |
Kurnool Airport |
Orvakal |
🇮🇳 India |
| ORA |
Orán Airport |
Orán |
🇦🇷 Argentina |
| URZ |
Orūzgān Airport |
Orūzgān |
🇦🇫 Afghanistan |
| OSB |
Grand Glaize Osage Beach Airport |
Osage Beach |
🇺🇸 A.S |
| ITM |
Osaka Itami International Airport |
Osaka |
🇯🇵 Jepun |
| KIX |
Kansai International Airport |
Osaka |
🇯🇵 Jepun |
| ANU |
V. C. Bird International Airport |
Osbourn |
🇦🇬 Antigua dan Barbuda |
| OEO |
L O Simenstad Municipal Airport |
Osceola |
🇺🇸 A.S |
| OSC |
Oscoda Wurtsmith Airport |
Oscoda |
🇺🇸 A.S |
| OSS |
Osh International Airport |
Osh |
🇰🇬 Kyrgyzstan |
| OHI |
Oshakati Airport |
Oshakati |
🇳🇦 Namibia |
| YOO |
Oshawa Executive Airport |
Oshawa |
🇨🇦 Kanada |
| OKS |
Garden County Airport/King Rhiley Field |
Oshkosh |
🇺🇸 A.S |
| OSH |
Wittman Regional Airport |
Oshkosh |
🇺🇸 A.S |
| OSI |
Osijek Airport |
Osijek(Klisa) |
🇭🇷 Croatia |
| OSK |
Oskarshamn Airport |
Oskarshamn |
🇸🇪 Sweden |
| OSL |
Oslo-Gardermoen International Airport |
Oslo (Gardermoen) |
🇳🇴 Norway |
| ZOS |
Cañal Bajo Carlos Hott Siebert Airport |
Osorno |
🇨🇱 Chile |
| OSG |
Ossima Airport |
Ossima |
🇵🇬 Papua New Guinea |
| HOI |
Hao Airport |
Otepa |
🇵🇫 French Polynesia |
| OTJ |
Otjiwarongo Airport |
Otjiwarongo |
🇳🇦 Namibia |
| OTQ |
Otog Front Banner Oljoq Airport |
Otog Front Banner |
🇨🇳 China |
| OTP |
Bucharest Henri Coandă International Airport |
Otopeni |
🇷🇴 Romania |
| YOW |
Ottawa Macdonald-Cartier International Airport |
Ottawa |
🇨🇦 Kanada |
| YRO |
Ottawa / Rockcliffe Airport |
Ottawa |
🇨🇦 Kanada |
| OTM |
Ottumwa Regional Airport |
Ottumwa |
🇺🇸 A.S |
| ODA |
Ouadda Airport |
Ouadda |
🇨🇫 Republik Afrika Tengah |
| OUA |
Ouagadougou Thomas Sankara International Airport |
Ouagadougou |
🇧🇫 Burkina Faso |
| OUG |
Ouahigouya Airport |
Ouahigouya |
🇧🇫 Burkina Faso |
| ODJ |
Ouanda Djallé Airport |
Ouanda Djallé |
🇨🇫 Republik Afrika Tengah |
| OFI |
Ouango Fitini Airport |
Ouango Fitini |
🇨🇮 Cote d’Ivoire |
| AJN |
Ouani Airport |
Ouani |
🇰🇲 Comoros |
| OGX |
Ain Beida Airport |
Ouargla |
🇩🇿 Algeria |
| OZZ |
Ouarzazate International Airport |
Ouarzazate |
🇲🇦 Maghribi |
| ODY |
Oudomsay Airport |
Oudomsay |
🇱🇦 Laos |
| OUH |
Oudtshoorn Airport |
Oudtshoorn |
🇿🇦 Afrika Selatan |
| BEM |
Beni Mellal Airport |
Oulad Yaich |
🇲🇦 Maghribi |
| BUJ |
Bou Saada Airport |
Ouled Sidi Brahim |
🇩🇿 Algeria |
| OUL |
Oulu Airport |
Oulu / Oulunsalo |
🇫🇮 Finland |
| OUM |
Oum Hadjer Airport |
Oum Hadjer |
🇹🇩 Chad |
| OIA |
Ourilândia do Norte Airport |
Ourilândia do Norte |
🇧🇷 Brazil |
| OUS |
Jornalista Benedito Pimentel Airport |
Ourinhos |
🇧🇷 Brazil |
| MAX |
Ouro Sogui Airport |
Ouro Sogui |
🇸🇳 Senegal |
| UVE |
Ouvéa Airport |
Ouvéa |
🇳🇨 New Caledonia |
| OYN |
Ouyen Airport |
Ouyen |
🇦🇺 Australia |
| KOZ |
Ouzinkie Airport |
Ouzinkie |
🇺🇸 A.S |
| OVL |
El Tuqui Airport |
Ovalle |
🇨🇱 Chile |
| OVG |
Overberg Airport |
Overberg |
🇿🇦 Afrika Selatan |
| FTX |
Owando Airport |
Owando |
🇨🇬 Congo - Brazzaville |
| OWA |
Owatonna Degner Regional Airport |
Owatonna |
🇺🇸 A.S |
| YOS |
Owen Sound / Billy Bishop Regional Airport |
Owen Sound |
🇨🇦 Kanada |
| OWB |
Owensboro Daviess County Airport |
Owensboro |
🇺🇸 A.S |
| QOW |
Sam Mbakwe International Cargo Airport |
Owerri |
🇳🇬 Nigeria |
| OXC |
Waterbury Oxford Airport |
Oxford |
🇺🇸 A.S |
| OXD |
Miami University Airport |
Oxford |
🇺🇸 A.S |
| UOX |
University Oxford Airport |
Oxford |
🇺🇸 A.S |
| YOH |
Oxford House Airport |
Oxford House |
🇨🇦 Kanada |
| OXR |
Oxnard Airport |
Oxnard |
🇺🇸 A.S |
| OYE |
Oyem Airport |
Oyem |
🇬🇦 Gabon |
| OLL |
Oyo Ollombo Airport |
Oyo |
🇨🇬 Congo - Brazzaville |
| OZC |
Labo Airport |
Ozamiz |
🇵🇭 Filipina |
| OZA |
Ozona Municipal Airport |
Ozona |
🇺🇸 A.S |