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Airport Name 
The name assigned to the airport. It may not necessarily be the same as the city name.
For example, Zamperini Field is the official name of the airport in Torrance, California
Please select a letter below that corresponds to the first letter in the name.
For example, Zamperini Field is the official name of the airport in Torrance, California
Please select a letter below that corresponds to the first letter in the name.
Browse Airports by Name: O
| 682 Items Found | Red text in the Airport Type indicates a Private landing facility |
Click on column heading to sort by that column
| ICAO | FAA | IATA | Name | City | State | Country | Type |
|---|---|---|---|---|---|---|---|
| 69WA | O & M Facilities | Clarkston | Washington | United States | Heliport | ||
| 05CT | O And G | Torrington | Connecticut | United States | Heliport | ||
| SILK | O Estado De Sao Paulo | O Estado De Sao Paulo | Brazil | Heliport | |||
| 64OH | O K Dies | Salem | Ohio | United States | Airport | ||
| 28IS | O K Flying Club Inc | Fillmore | Illinois | United States | Airport | ||
| 14TS | O S Wyatt | Realitos | Texas | United States | Airport | ||
| OH23 | O'bleness Memorial Hospital | Athens | Ohio | United States | Heliport | ||
| 25XS | O'brien Airpark | Waxahachie | Texas | United States | Airport | ||
| FD71 | O'brien Airpark East/West | Branford | Florida | United States | Airport | ||
| LA71 | O'brien Flying Service | Iowa | Louisiana | United States | Airport | ||
| 8IL5 | O'connor Field | Pecatonica | Illinois | United States | Airport | ||
| VA40 | O'gara Tech Training Facility | Danville | Virginia | United States | Heliport | ||
| NY71 | O'riley | Fort Plain | New York | United States | Airport | ||
| KCSL | CSL | CSL | O'sullivan AHP | Camp San Luis Obispo | California | United States | Heliport |
| NV02 | O'toole Ranch | Austin | Nevada | United States | Airport | ||
| TE69 | Oak Bend Medical Center | Richmond | Texas | United States | Heliport | ||
| 33CL | Oak Country Ranch | Paso Robles | California | United States | Airport | ||
| 3TS9 | Oak Glen Ranch | Cooper | Texas | United States | Airport | ||
| 13NC | Oak Grove MCOLF | Pollocksville | North Carolina | United States | Airport | ||
| FA73 | Oak Harbor | Haines City | Florida | United States | Seaplane Base | ||
| OH72 | Oak Hill Hospital | Oak Hill | Ohio | United States | Heliport | ||
| MN42 | Oak Lake Air Strip | Erskine | Minnesota | United States | Airport | ||
| 16LL | Oak Landing | Bull Valley | Illinois | United States | Heliport | ||
| FL82 | Oak Ridge | Interlachen | Florida | United States | Airport | ||
| NY16 | Oak Ridge | East Palmyra | New York | United States | Airport | ||
| 4TA7 | Oak Ridge | Ingleside | Texas | United States | Heliport | ||
| 5MO9 | Oak Ridge Farms | New Boston | Missouri | United States | Airport | ||
| 13GA | Oak Ridge Plantation | Sylvester | Georgia | United States | Airport | ||
| 6J8 | Oak Tree Landing | High Springs | Florida | United States | Airport | ||
| YOKV | Oak Valley | Oak Valley | South Australia | Australia | Airport | ||
| 47WI | Oakbrook | Fort Atkinson | Wisconsin | United States | Airport | ||
| O27 | Oakdale | Oakdale | California | United States | Airport | ||
| 16PN | Oakdale AHP | Oakdale | Pennsylvania | United States | Heliport | ||
| YOKH | Oakden Hills | Oakden Hills | South Australia | Australia | Airport | ||
| FB58 | Oakdene | Botswana | Airport | ||||
| 66IN | Oakes Field | Charlottesville | Indiana | United States | Airport | ||
| 2D5 | Oakes Municipal | Oakes | North Dakota | United States | Airport | ||
| 75DC | Oakesdale | Oakesdale | Washington | United States | Airport | ||
| YBOK | OKY | Oakey | Oakey | Queensland | Australia | Airport | |
| YOAM | Oakhampton | Oakhampton | New South Wales | Australia | Airport | ||
| SC82 | Oakhill Airpark | Williamson | South Carolina | United States | Airport | ||
| CL41 | Oakland Convention Center | Oakland | California | United States | Heliport | ||
| KPTK | PTK | PTK | Oakland County International | Pontiac | Michigan | United States | Airport |
| Y47 | Oakland Southwest | New Hudson | Michigan | United States | Airport | ||
| KVLL | VLL | Oakland/Troy | Troy | Michigan | United States | Airport | |
| 9SD8 | Oakleaf | Hartford | South Dakota | United States | Airport | ||
| TN79 | Oakley | Nashville | Tennessee | United States | Airport | ||
| 1U6 | Oakley Municipal | Oakley | Idaho | United States | Airport | ||
| KOEL | OEL | Oakley Municipal | Oakley | Kansas | United States | Airport | |
| 26OG | Oakridge Ranch | Eagle Point | Oregon | United States | Airport | ||
| 5S0 | Oakridge State | Oakridge | Oregon | United States | Airport | ||
| TX24 | Oaks | Arp | Texas | United States | Airport | ||
| FD43 | Oaks Helistop | Venice | Florida | United States | Heliport | ||
| EGTW | Oaksey Park | Oaksey Park | United Kingdom | Airport | |||
| YOKE | Oakvale | Oakvale | Queensland | Australia | Airport | ||
| SC52 | Oakview | Six Mile | South Carolina | United States | Airport | ||
| 05MI | Oakwood Heritage Hospital | Taylor | Michigan | United States | Heliport | ||
| 56MI | Oakwood Hospital | Dearborn | Michigan | United States | Heliport | ||
| YOAY | Oaky Creek | Oaky Creek | Queensland | Australia | Airport | ||
| NZOU | OAM | Oamaru | Oamaru | South Island | New Zealand | Airport | |
| FYRH | Oanob Resort | Oanob Resort | Namibia | Airport | |||
| SIOG | Oasis Graal | Oasis Graal | Brazil | Heliport | |||
| 9FL7 | Oasis Ranger Station-U.S. Government | Everglades City | Florida | United States | Airport | ||
| EGEO | OBN | Oban | Oban | Scotland | United Kingdom | Airport | |
| SKPD | PDA | Obando | Puerto Inirida | Colombia | Airport | ||
| OH66 | Obannon Creek Aerodrome | Goshen | Ohio | United States | Airport | ||
| WABR | Obano (DGAC) | Obano, Papua | Western New Guinea | Indonesia | Airport | ||
| EDFP | Ober-Moerlen | Germany | Airport | ||||
| SATO | Obera | Obera | Argentina | Airport | |||
| PA52 | Oberlander | Union City | Pennsylvania | United States | Airport | ||
| KOIN | OIN | Oberlin Municipal | Oberlin | Kansas | United States | Airport | |
| EDCO | Obermehler Schlotheim | Obermehler | Germany | Airport | |||
| YOBE | Oberon | Oberon | New South Wales | Australia | Heliport | ||
| EDMO | OBF | Oberpfaffenhofen | Oberpfaffenhofen | Germany | Airport | ||
| EDUO | Oberrissdorf | Germany | Airport | ||||
| 7OH3 | Obi One | Delaware | Ohio | United States | Airport | ||
| SNTI | Obidos | Obidos | Brazil | Airport | |||
| RJCB | OBO | Obihiro | Obihiro | Japan | Airport | ||
| WA0N | Obiyo | Obiyo, Papua | Western New Guinea | Indonesia | Airport | ||
| CKV4 | KV4 | YDW | Obre Lake | North of Sixty Fishing Camps | Northwest Territories | Canada | Airport |
| KOCF | OCF | OCF | Ocala International-Jim Taylor Field | Ocala | Florida | United States | Airport |
| LEOC | Ocana | Ocana | Spain | Airport | |||
| 44CN | Occidental Petroleum | Los Angeles | California | United States | Heliport | ||
| 7WA9 | Ocean Beach Hospital | Ilwaco | Washington | United States | Heliport | ||
| 23FA | Ocean Beach Resort | Miami Beach | Florida | United States | Heliport | ||
| KOXB | OXB | OCE | Ocean City Municipal | Ocean City | Maryland | United States | Airport |
| 26N | Ocean City Municipal | Ocean City | New Jersey | United States | Airport | ||
| CZOF | Ocean Falls Spb | Ocean Falls SPB | Canada | Seaplane Base | |||
| YOCG | Ocean Grove | Ocean Grove | Victoria | Australia | Heliport | ||
| 07FA | OCA | Ocean Reef Club | Key Largo | Florida | United States | Airport | |
| E55 | Ocean Ridge | Gualala | California | United States | Airport | ||
| W04 | Ocean Shores Municipal | Ocean Shores | Washington | United States | Airport | ||
| 5R2 | Ocean Springs | Ocean Springs | Mississippi | United States | Airport | ||
| C04 | Oceana County | Hart/Shelby | Michigan | United States | Airport | ||
| KNTU | NTU | NTU | Oceana NAS /Apollo Soucek Field/ | Virginia Beach | Virginia | United States | Airport |
| L52 | Oceano County | Oceano | California | United States | Airport | ||
| KOKB | OKB | OCN | Oceanside Municipal | Oceanside | California | United States | Airport |
| LFSO | Ochey_Ab | Nancy-Ochey | France | Airport | |||
| 6WA4 | Ochoa Field | Othello | Washington | United States | Airport | ||
| 72OR | Ochs Private | Madras | Oregon | United States | Airport | ||
| NE62 | Ochsner | Madison | Nebraska | United States | Heliport | ||
| LS51 | Ochsner Medical Center Northshore | Slidell | Louisiana | United States | Heliport | ||
| LS96 | Ochsner Medical Institutions | Jefferson | Louisiana | United States | Heliport | ||
| 7LA2 | Ochsner St Anne General Hospital | Raceland | Louisiana | United States | Heliport | ||
| DE23 | Ockel Farms | Milton | Delaware | United States | Airport | ||
| KCEU | CEU | CEU | Oconee County Regional | Clemson | South Carolina | United States | Airport |
| 0WI8 | Oconomowoc | Oconomowoc | Wisconsin | United States | Airport | ||
| SSLR | Ocorema | Brazil | Airport | ||||
| L90 | Ocotillo | Ocotillo Wells | California | United States | Airport | ||
| W95 | Ocracoke Island | Ocracoke | North Carolina | United States | Airport | ||
| LHOY | Ocseny | Oscseny | Hungary | Airport | |||
| HEOC | October | October | Egypt | Airport | |||
| RJSR | ONJ | Odate Noshiro | Odate Noshiro | Japan | Airport | ||
| LA85 | Odeco Cocodrie | Cocodrie | Louisiana | United States | Heliport | ||
| 57ND | Odegaard | Kindred | North Dakota | United States | Airport | ||
| 60J | Odell Williamson Municipal | Ocean Isle Beach | North Carolina | United States | Airport | ||
| EKOD | ODE | Odense | Odense | Denmark | Airport | ||
| UKOO | ODS | Odesa International | Odesa | Odesa | Ukraine | Airport | |
| 9WA2 | Odessa Memorial Hospital Ems | Odessa | Washington | United States | Heliport | ||
| 43D | Odessa Municipal | Odessa | Washington | United States | Airport | ||
| KODO | ODO | Odessa-Schlemeyer Field | Odessa | Texas | United States | Airport | |
| CSL7 | SL7 | Odessa/Strawberry Lakes | Odessa | Saskatchewan | Canada | Airport | |
| EGVO | ODH | Odiham | Odiham | England | United Kingdom | Airport | |
| AR28 | Odom Field | Cabot | Arkansas | United States | Airport | ||
| 50FL | Odom's Flying Service | Jay | Florida | United States | Airport | ||
| 76OK | Odom's Roost | Newcastle | Oklahoma | United States | Airport | ||
| 1OH6 | Odot | Sidney | Ohio | United States | Heliport | ||
| 60OH | Odot Dist 4 Office | Ravenna | Ohio | United States | Heliport | ||
| 8OH6 | Odot Dist 4 Summit Co | Cuyahoga Falls | Ohio | United States | Heliport | ||
| 5OH2 | Odot District 03 | Ashland | Ohio | United States | Heliport | ||
| OH84 | Odot District Nr 1 | Lima | Ohio | United States | Heliport | ||
| 01WT | Odyssey | Renton | Washington | United States | Heliport | ||
| SNOE | Oeiras | Oeiras | Brazil | Airport | |||
| KOLZ | OLZ | Oelwein Municipal | Oelwein | Iowa | United States | Airport | |
| YOPT | Oenpelli | Oenpelli | Northern Territory | Australia | Airport | ||
| YOEN | OPI | Oenpelli | Oenpelli | Northern Territory | Australia | Airport | |
| EDLO | Oerlinghausen | Oerlinghausen | Germany | Airport | |||
| SJDK | Oeste Plaza Shopping-Mc | Oeste Plaza Shopping-Mc | Brazil | Heliport | |||
| EK32 | Oestfyn Kerteminde | Denmark | Airport | ||||
| EDTO | ZPA | Offenburg Baden | Offenburg | Germany | Airport | ||
| SDQT | Office Tower Itaim | Office Tower Itaim | Brazil | Heliport | |||
| 1AK5 | Offshore Systems-Kenai | Nikiski | Alaska | United States | Heliport | ||
| PN02 | Offutt Acres | East Brady | Pennsylvania | United States | Airport | ||
| KOFF | OFF | OFF | Offutt AFB | Omaha | Nebraska | United States | Airport |
| NSAS | Z08 | OFU | Ofu | Ofu Village | American Samoa | United States | Airport |
| NE14 | Ogallala Community Hospital | Ogallala | Nebraska | United States | Heliport | ||
| FY2P | Oganja | Namibia | Airport | ||||
| 54UT | Ogden Regional Medical Center | Washington Terrace | Utah | United States | Heliport | ||
| KOGD | OGD | OGD | Ogden-Hinckley | Ogden | Utah | United States | Airport |
| KOGS | OGS | OGS | Ogdensburg International | Ogdensburg | New York | United States | Airport |
| C55 | Ogle County | Mount Morris | Illinois | United States | Airport | ||
| MT87 | Oglesby Farms Inc | Peerless | Montana | United States | Airport | ||
| CFS4 | FS4 | Oglivie River | Ogilvie River | Yukon Territory | Canada | Airport | |
| LTAJ | GZT | Oguzeli | Gaziantep | Turkey | Airport | ||
| NZOH | Ohakea | Ohakea | New Zealand | Airport | |||
| 0XA8 | Ohho | Dripping Springs | Texas | United States | Airport | ||
| OH53 | Ohio Bldg Authority | Columbus | Ohio | United States | Heliport | ||
| 7K4 | Ohio County | Hartford | Kentucky | United States | Airport | ||
| 96OH | Ohio Department Of Transportation Dist 6 | Delaware | Ohio | United States | Heliport | ||
| 6C2 | Ohio Dusting Co Inc | Pandora | Ohio | United States | Airport | ||
| KOSU | OSU | OSU | Ohio State University | Columbus | Ohio | United States | Airport |
| OH54 | Ohio State University Hospital | Columbus | Ohio | United States | Heliport | ||
| KUNI | UNI | ATO | Ohio University Snyder Field | Athens/Albany | Ohio | United States | Airport |
| PS10 | Ohioport | Ohiopyle | Pennsylvania | United States | Heliport | ||
| E14 | ESO | Ohkay Owingeh | Espanola | New Mexico | United States | Airport | |
| 93AR | Ohlendorf | Osceola | Arkansas | United States | Airport | ||
| FY2Q | Ohlsenhagen | Namibia | Airport | ||||
| WY12 | Ohman Ranch | Gillette | Wyoming | United States | Airport | ||
| FY2R | Ohorongo | Namibia | Airport | ||||
| RJA2 | Ohotone | Ohotone | Japan | Airport | |||
| LWOH | OHD | Ohrid | Ohrid | Macedonia | Airport | ||
| EN24 | Oian | Norway | Airport | ||||
| SBOI | OYK | Oiapoque | Oiapoque | Amapa | Brazil | Airport | |
| RJFO | OIT | Oita | Oita | Japan | Airport | ||
| D11 | Ojibwa Airpark | Weidman | Michigan | United States | Airport | ||
| RJDO | Ojika | Ojika | Japan | Airport | |||
| WAKO | OKQ | Okaba (DGAC) | Okaba, Papua | Western New Guinea | Indonesia | Airport | |
| FYON | Okahandja | Okahandja | Namibia | Airport | |||
| FYOH | Okahao | Okahao | Namibia | Airport | |||
| FYOK | Okakarara | Okakarara | Namibia | Airport | |||
| FYMP | Okamapu | Okamapu | Namibia | Airport | |||
| FY2S | Okamatipati | Namibia | Airport | ||||
| FY2T | Okanduka Ranch | Namibia | Airport | ||||
| FYKW | Okangwati | Okangwati | Namibia | Airport | |||
| S35 | Okanogan Legion | Okanogan | Washington | United States | Airport | ||
| FYPR | Okaperuperu | Okaperuperu | Namibia | Airport | |||
| FYPA | Okapuka | Okapuka | Namibia | Airport | |||
| FYKP | Okaputa | Okaputa | Namibia | Airport | |||
| OPOK | Okara | Okara | Pakistan | Airport | |||
| 3OK1 | Okarche | Okarche | Oklahoma | United States | Airport | ||
| FYOF | Okatjuru | Okatjuru | Namibia | Airport | |||
| FY2V | Okatopi | Namibia | Airport | ||||
| RJOB | OKJ | Okayama | Okayama | Japan | Airport | ||
| HL77 | Okba Ibn Nafa | Okba Ibn Nafa | Libya | Airport | |||
| WA0O | Okbape | Okbape, Papua | Western New Guinea | Indonesia | Airport | ||
| KOBE | OBE | OBE | Okeechobee County | Okeechobee | Florida | United States | Airport |
| FL41 | Okeelanta | South Bay | Florida | United States | Airport | ||
| 3GE1 | Okefenokee | Folkston | Georgia | United States | Heliport | ||
| F81 | Okemah Flying Field | Okemah | Oklahoma | United States | Airport | ||
| WA0P | Okhika | Okhika, Papua | Western New Guinea | Indonesia | Airport | ||
| RJNO | OKI | Oki | Oki Island | Japan | Airport | ||
| RJKB | OKE | Okierabu | Okierabu Jima | Japan | Airport | ||
| FB59 | Okillagte | Botswana | Airport | ||||
| NZOX | Okiwi Station | Okiwi Station | New Zealand | Airport | |||
| 77OK | Oklahoma National Guard | Oklahoma City | Oklahoma | United States | Heliport | ||
| KOKM | OKM | OKM | Okmulgee Regional | Okmulgee | Oklahoma | United States | Airport |
| 5A4 | Okolona Municipal-Richard Stovall Field | Okolona | Mississippi | United States | Airport | ||
| DE33 | Okolona Plantation | Middletown | Delaware | United States | Airport | ||
| FYAH | Okombahe | Okombahe | Namibia | Airport | |||
| FYOD | Okomitundu | Okomitundu | Namibia | Airport | |||
| FOGQ | OKN | Okondja | Okondja | Gabon | Airport | ||
| FY2X | Okondjatu | Namibia | Airport | ||||
| FYKG | Okongo | Okongo | Namibia | Airport | |||
| FYKN | Okonjima | Okonjima | Namibia | Airport | |||
| FYKR | Okorusu Mine | Okorusu Mine | Namibia | Airport | |||
| FY2Y | Okosongoro | Namibia | Airport | ||||
| FYOZ | Okozongomingo | Okozongomingo | Namibia | Airport | |||
| WAJO | OKL | Oksibil (DGAC) | Oksibil | Western New Guinea | Indonesia | Airport | |
| EPOK | QYD | Oksywie | Gdynia | Poland | Airport | ||
| M51 | Oktibbeha | Starkville | Mississippi | United States | Airport | ||
| 42MS | Oktibbeha County Hospital | Starkville | Mississippi | United States | Heliport | ||
| RJEO | OIR | Okushiri | Okushiri | Japan | Airport | ||
| FBOK | Okwa Camp One | Okwa Camp One | Botswana | Airport | |||
| BIOF | Olafsfjordur | Olafsfjordur | Iceland | Airport | |||
| 03ND | Olafson Brothers | Edinburg | North Dakota | United States | Airport | ||
| SAZF | Olavarria | Olavarria | Argentina | Airport | |||
| SAA4 | Olavarria Aeroclub | Argentina | Airport | ||||
| LIEO | OLB | Olbia Costa Smeralda | Olbia | Sardinia | Italy | Airport | |
| D80 | Olcott-Newfane | Olcott | New York | United States | Airport | ||
| 70OK | Old 66 Strip | Miami | Oklahoma | United States | Airport | ||
| 02ME | Old Acton Airfield | Acton | Maine | United States | Airport | ||
| 9CL7 | Old Aerodrome | Marysville | California | United States | Airport | ||
| YOAD | Old Andado | Old Andado | Northern Territory | Australia | Airport | ||
| YOAF | Old Arafura | Old Arafura | Northern Territory | Australia | Airport | ||
| YOBR | Old Bar | Old Bar | New South Wales | Australia | Airport | ||
| 3N6 | Old Bridge | Old Bridge | New Jersey | United States | Airport | ||
| YOBA | Old Brisbane Airport | Brisbane | Queensland | Australia | Heliport | ||
| EGSV | Old Buckenham | Old Buckenham | United Kingdom | Airport | |||
| YBDM | Old Bundemar | Old Bundemar | New South Wales | Australia | Airport | ||
| CYOC | CYOC | YOC | Old Crow | Old Crow | Yukon Territory | Canada | Airport |
| 3WN2 | Old Dairy | Washburn | Wisconsin | United States | Airport | ||
| NK26 | Old Forge | Old Forge | New York | United States | Airport | ||
| TA30 | Old Forker | Sante Fe | Texas | United States | Ultralight | ||
| 50NY | Old Fort Farm | Hemlock | New York | United States | Airport | ||
| YGPA | Old Goodparla | Old Goodparla | Northern Territory | Australia | Airport | ||
| 6R7 | OLH | Old Harbor | Old Harbor | Alaska | United States | Airport | |
| 56LA | Old Hickory Ranch | Keithville | Louisiana | United States | Airport | ||
| 67T | Old Hoppe Place | Agua Dulce | Texas | United States | Airport | ||
| 85TE | Old Kingsbury Aerodrome | Kingsbury | Texas | United States | Airport | ||
| 0PS4 | Old Orchard | Curwensville | Pennsylvania | United States | Airport | ||
| 2NK9 | Old Orchard Airpark | Modena | New York | United States | Airport | ||
| 9PA2 | Old Plains | Pennsburg | Pennsylvania | United States | Airport | ||
| 6NY1 | Old Port Royal | Corning | New York | United States | Airport | ||
| 4P2 | Old Portage | Akron | Ohio | United States | Heliport | ||
| 5XS6 | Old Reb | Mercedes | Texas | United States | Airport | ||
| NY94 | Old Rhinebeck | Rhinebeck | New York | United States | Airport | ||
| EGLS | Old Sarum | Old Sarum | United Kingdom | Airport | |||
| CT57 | Old Saybrook | Old Saybrook | Connecticut | United States | Heliport | ||
| CT99 | Old Saybrook Police | Canada | Heliport | ||||
| 32VA | Old South Aerodrome | Abingdon | Virginia | United States | Airport | ||
| YOSN | Old Station | Old Station | Queensland | Australia | Airport | ||
| 0FL3 | Old Town Ems | Old Town | Florida | United States | Heliport | ||
| EGTH | Old Warden Biggleswade | Old Warden | United Kingdom | Airport | |||
| EDWH | Oldenburg Hatten | Oldenburg Hatten | Germany | Airport | |||
| 27IA | Oldfield Aero | Keosauqua | Iowa | United States | Airport | ||
| E52 | Oldham County | Vega | Texas | United States | Airport | ||
| CFK6 | FK6 | Olds (Netook) | Olds | Alberta | Canada | Airport | |
| CEA3 | EA3 | Olds Didsbury | Olds, Didsbury | Alberta | Canada | Airport | |
| 5NK4 | Olean General | Olean | New York | United States | Heliport | ||
| UEMO | Olekminsk | Olekminsk | Russia | Airport | |||
| UERO | Olenek | Olenek | Russia | Airport | |||
| 4II3 | Oleo | Fillmore | Indiana | United States | Airport | ||
| MT04 | Olfert | Lustre | Montana | United States | Airport | ||
| KOY | KOY | Olga Bay | Olga Bay | Alaska | United States | Seaplane Base | |
| YOGD | Olga Downs | Olga Downs | Queensland | Australia | Airport | ||
| FY2Z | Olifantwater | Namibia | Airport | ||||
| LG56 | Olimboi | Olimboi | North Aegean | Greece | Airport | ||
| SDOL | Olimpia | Olimpia | Brazil | Airport | |||
| OR81 | Olinger Airpark | Hillsboro | Oregon | United States | Airport | ||
| SAA5 | Oliva | Argentina | Airport | ||||
| KOLV | OLV | OLV | Olive Branch | Olive Branch | Mississippi | United States | Airport |
| 2I2 | Olive Hill-Sellers' Field | Olive Hill | Kentucky | United States | Airport | ||
| CA64 | Olive View Medical Center | Sylmar | California | United States | Heliport | ||
| SNRZ | Oliveira | Brazil | Airport | ||||
| 4TX7 | Oliver | Knox City | Texas | United States | Airport | ||
| 4IN2 | Oliver Lake | La Grange | Indiana | United States | Seaplane Base | ||
| 42TN | Oliver Landing | Paris | Tennessee | United States | Airport | ||
| TN08 | Oliver Springs Inc | Oliver Springs | Tennessee | United States | Airport | ||
| IS92 | Olivers | Gilberts | Illinois | United States | Heliport | ||
| KOVL | OVL | Olivia Regional | Olivia | Minnesota | United States | Airport | |
| 05UT | Oljato | Oljato | Utah | United States | Airport | ||
| L47 | Olla | Olla | Louisiana | United States | Airport | ||
| SD97 | Oller | Vivian | South Dakota | United States | Airport | ||
| 73NY | Olmstead Landing Strip | Masonville | New York | United States | Airport | ||
| ID25 | Olmstead Sky Ranch | Sandpoint | Idaho | United States | Airport | ||
| KONY | ONY | ONY | Olney Municipal | Olney | Texas | United States | Airport |
| KOLY | OLY | OLY | Olney-Noble | Olney-Noble | Illinois | United States | Airport |
| SDRM | Olomai | Brazil | Airport | ||||
| LKOL | OLO | Olomouc | Olomouc | Czech Republic | Airport | ||
| LFCO | Oloron_Herrere | Oloron | France | Airport | |||
| NVSZ | Olpoi | Vanuatu | Airport | ||||
| 5IL1 | Olson | Pecatonica | Illinois | United States | Heliport | ||
| LL53 | Olson | Plato Center | Illinois | United States | Airport | ||
| MT19 | Olson | Ronan | Montana | United States | Airport | ||
| SN40 | Olson Aerodrome | Derby | Kansas | United States | Airport | ||
| NE30 | Olson Field | Holdrege | Nebraska | United States | Airport | ||
| 3WI1 | Olson's | Union Grove | Wisconsin | United States | Airport | ||
| LSPO | Olten | Olten | Switzerland | Airport | |||
| 83IL | Oltman-Shuck | Minonk | Illinois | United States | Airport | ||
| F09 | Olustee Municipal | Olustee | Oklahoma | United States | Airport | ||
| 0WN4 | Olympia | Olympia | Washington | United States | Heliport | ||
| KOLM | OLM | OLM | Olympia Regional | Olympia | Washington | United States | Airport |
| YOLD | OLP | Olympic Dam | Olympic Dam | South Australia | Australia | Airport | |
| WA45 | Olympic Field | Discovery Bay/Maynard | Washington | United States | Airport | ||
| 26WA | Olympic Memorial Hospital | Port Angeles | Washington | United States | Heliport | ||
| KOMK | OMK | OMK | Omak | Omak | Washington | United States | Airport |
| NZOM | Omaka | Omaka | New Zealand | Airport | |||
| 6MI8 | Omans | Almont | Michigan | United States | Heliport | ||
| KMBY | MBY | MBY | Omar N Bradley | Moberly | Missouri | United States | Airport |
| NZOA | Omarama | Omarama | New Zealand | Airport | |||
| FYOM | Omaruru | Omaruru | Namibia | Airport | |||
| FYGL | Omaruru Game Lodge | Omaruru Game Lodge | Namibia | Airport | |||
| FY30 | Omatako Ranch | Namibia | Airport | ||||
| FYMR | Omatarassu | Omatarassu | Namibia | Airport | |||
| FY31 | Omatjete | Namibia | Airport | ||||
| FY32 | Ombalantu | Namibia | Airport | ||||
| FY33 | Ombombo | Namibia | Airport | ||||
| FOOH | OMB | Omboue Hopital | Omboue | Gabon | Airport | ||
| FY34 | Ombu | Namibia | Airport | ||||
| FB60 | Omdop | Botswana | Airport | ||||
| FYOE | Omega | Omega | Namibia | Airport | |||
| 12CO | Omega 1 | Hotchkiss | Colorado | United States | Airport | ||
| YOMO | Omeo | Omeo | Victoria | Australia | Heliport | ||
| 9OK1 | Omh | Oklahoma City | Oklahoma | United States | Heliport | ||
| OIAJ | OMI | Omidiyeh | Omidiyeh | Iran | Airport | ||
| RJSO | Ominato Nas | Ominato | Japan | Airport | |||
| LS13 | Omni | Carencro | Louisiana | United States | Heliport | ||
| LA46 | Omni | Port Allen | Louisiana | United States | Airport | ||
| 6NY2 | Omni Airpark | Horseheads | New York | United States | Airport | ||
| 18LS | Omni Mouton Cove | Abbeville | Louisiana | United States | Heliport | ||
| WI85 | Omniflight Helicopters | Janesville | Wisconsin | United States | Heliport | ||
| EK68 | Omoe | Denmark | Airport | ||||
| UNOS | Omsk Severny | Omsk Severny | Russia | Airport | |||
| UNOO | OMS | Omsk_Tsentralnyi | Omsk | Omsk | Russia | Airport | |
| 1CA6 | On The Rocks | Alpine | California | United States | Airport | ||
| 12V | Ona Airpark | Milton | West Virginia | United States | Airport | ||
| FY35 | Onaiso (Etosha West) | Namibia | Airport | ||||
| K36 | Onawa Municipal | Onawa | Iowa | United States | Airport | ||
| FYOA | OND | Ondangwa | Ondangwa | Namibia | Airport | ||
| FY36 | Onderompapa | Namibia | Airport | ||||
| SIND | Ondina | Ondina | Brazil | Heliport | |||
| FY37 | Ondundu Lodge | Namibia | Airport | ||||
| VA1H | Ondwa | Ondwa | India | Airport | |||
| YOAP | One Arm Pt | One Arm Pt | Western Australia | Australia | Airport | ||
| 5TN9 | One Grand Field | Cookeville | Tennessee | United States | Airport | ||
| SILR | One Hundred | One Hundred | Brazil | Heliport | |||
| CAV3 | AV3 | One Hundred Mile House | 100 Mile House | British Columbia | Canada | Airport | |
| 10PN | One Meridian Plaza | Philadelphia | Pennsylvania | United States | Heliport | ||
| 9TS1 | One O'connor Plaza-Tower | Victoria | Texas | United States | Heliport | ||
| 77KY | One Oak | Mount Sterling/Owingsville | Kentucky | United States | Airport | ||
| NK39 | One Police Plaza | New York | New York | United States | Heliport | ||
| TS02 | One Sixty Four Place | Jacksboro | Texas | United States | Airport | ||
| NK22 | One Ten | Farmingdale | New York | United States | Heliport | ||
| CZML | ZML | One Zero Eight Mile Airport | 108 Mile | British Columbia | Canada | Airport | |
| N66 | ONH | Oneonta Municipal | Oneonta | New York | United States | Airport | |
| FYNG | Ongava Lodge | Ongava Lodge | Namibia | Airport | |||
| WRLO | Ongko Asa (ADVENT) | Ongko Asa | Indonesia | Airport | |||
| FY38 | Ongongoro | Namibia | Airport | ||||
| FYUE | Ongwediva | Ongwediva | Namibia | Airport | |||
| 98D | Onida Municipal | Onida | South Dakota | United States | Airport | ||
| 43NE | Onion Crest Airpark | Riverdale | Nebraska | United States | Airport | ||
| RJT3 | Onishi | Onishi | Japan | Airport | |||
| SDON | Onix | Brazil | Heliport | ||||
| FY39 | Onjoka | Namibia | Airport | ||||
| SDRP | Onkiola | Brazil | Airport | ||||
| VG20 | Onley | Onley | Virginia | United States | Airport | ||
| NK55 | Onondaga County Sheriff's Department | Camillus | New York | United States | Heliport | ||
| YOLW | ONS | Onslow | Onslow | Western Australia | Australia | Airport | |
| KONT | ONT | ONT | Ontario International | Ontario | California | United States | Airport |
| KONO | ONO | ONO | Ontario Municipal | Ontario | Oregon | United States | Airport |
| KOGM | OGM | Ontonagon County - Schuster Field | Ontonagon | Michigan | United States | Airport | |
| VT43 | Onyon | Townshend | Vermont | United States | Airport | ||
| YOOB | Oobagooma | Oobagooma | Western Australia | Australia | Airport | ||
| YOOD | ODD | Oodnadatta | Oodnadatta | South Australia | Australia | Airport | |
| YODA | Ooldea | Ooldea | South Australia | Australia | Airport | ||
| SC75 | Oolenoy Valley | Pickens | South Carolina | United States | Airport | ||
| YOBM | Oombabeer | Oombabeer | Queensland | Australia | Airport | ||
| AK32 | Oooguruk Island | Nuiqsut | Alaska | United States | Heliport | ||
| YORT | Ooratippra | Ooratippra | Northern Territory | Australia | Airport | ||
| EBOS | OST | Oostende | Ostend (Oostende) | Belgium | Airport | ||
| EHOW | Oostwold | Oostwold | Netherlands | Airport | |||
| YOTN | Ootann | Ootann | Queensland | Australia | Airport | ||
| FYOT | Ootmoed | Ootmoed | Namibia | Airport | |||
| KOPF | OPF | OPF | Opa- Locka Executive | Miami | Florida | United States | Airport |
| OPCH | CJL | Opch Chitral | Chitral | Pakistan | Airport | ||
| 80TE | Opela | Carrollton | Texas | United States | Heliport | ||
| 3LA8 | Open A-1 Ranch | Lake Charles | Louisiana | United States | Airport | ||
| CN39 | Operating Engineers Pension Trust Bldg | Los Angeles | California | United States | Heliport | ||
| PS44 | Operations Center | Bellwood | Pennsylvania | United States | Heliport | ||
| S00 | Opheim | Opheim | Montana | United States | Airport | ||
| Z17 | Ophir | Ophir | Alaska | United States | Airport | ||
| YOPC | Opium | Opium | Northern Territory | Australia | Airport | ||
| NZOP | Opotiki | Opotiki | New Zealand | Airport | |||
| EDGP | Oppenheim | Oppenheim | Germany | Airport | |||
| OPPS | PEW | Opps Peshawar | Peshawar | Pakistan | Airport | ||
| ESNM | Optand | Optand | Sweden | Airport | |||
| SWZX | Opto | Opto | Brazil | Heliport | |||
| CA85 | Opus Center Irvine | Irvine | California | United States | Heliport | ||
| LROD | OMR | Oradea | Oradea | Romania | Airport | ||
| PR14 | Orama-Iayuya | Jayuya | Puerto Rico | United States | Heliport | ||
| SASO | ORA | Oran | Oran (San Ramon De La Nueva Oran) | Argentina | Airport | ||
| YORG | OAG | Orange | Orange | New South Wales | Australia | Airport | |
| KORC | ORC | Orange City Municipal | Orange City | Iowa | United States | Airport | |
| 6CL7 | Orange Co Sheriffs Forensics Lab Helistop | Santa Ana | California | United States | Heliport | ||
| KMGJ | MGJ | MGJ | Orange County | Montgomery | New York | United States | Airport |
| KORG | ORG | Orange County | Orange | Texas | United States | Airport | |
| KOMH | OMH | Orange County | Orange | Virginia | United States | Airport | |
| 27FA | Orange County Sheriff's Office | Orlando | Florida | United States | Heliport | ||
| CL44 | Orange County Steel Salvage | Anaheim | California | United States | Heliport | ||
| KNOG | NOG | Orange Grove NALF | Orange Grove | Texas | United States | Airport | |
| 15FD | Orange Hill | Wausau | Florida | United States | Airport | ||
| KORE | ORE | Orange Municipal | Orange | Massachusetts | United States | Airport | |
| 4NY1 | Orange Poultry Farm | Chester | New York | United States | Airport | ||
| 6NY0 | Orange Regional Medical Center | Middletown | New York | United States | Heliport | ||
| KOGB | OGB | OGB | Orangeburg Municipal | Orangeburg | South Carolina | United States | Airport |
| FYOG | OMD | Oranjemund | Oranjemund | Namibia | Airport | ||
| YORP | Oraparinna | Oraparinna | South Australia | Australia | Airport | ||
| 34WA | Orbit | Washougal | Washington | United States | Heliport | ||
| YORB | RBS | Orbost | Orbost | Victoria | Australia | Airport | |
| YORS | Orbost | Orbost | Victoria | Australia | Heliport | ||
| KORS | ORS | ESD | Orcas Island | Eastsound | Washington | United States | Airport |
| WY38 | Orchard Ranch | Ten Sleep | Wyoming | United States | Airport | ||
| YORC | Orchid Beach | Orchid Beach | Queensland | Australia | Airport | ||
| YOCR | Orchid Creek | Orchid Creek | Queensland | Australia | Airport | ||
| 5CA2 | Ord Mountain | Barstow | California | United States | Heliport | ||
| YORV | Ord River | Ord River | Western Australia | Australia | Airport | ||
| ESOE | ORB | Orebro | Orebro | Sweden | Airport | ||
| MS88 | Oreck | Poplarville | Mississippi | United States | Airport | ||
| 9OR6 | Oregon Health Sciences University Emerg | Portland | Oregon | United States | Heliport | ||
| OG33 | Oregon Sky Ranch | Milton/Freewater | Oregon | United States | Airport | ||
| YXOR | Oreillys | Oreillys | Queensland | Australia | Heliport | ||
| SPON | Orellana | Orellana | Peru | Airport | |||
| UWOO | REN | Orenburg | Orenburg (Form. Chkalov) | Orenburg | Russia | Airport | |
| ESGM | Oresten | Oresten | Sweden | Airport | |||
| MUMO | MOA | Orestes Acosta | Moa | Cuba | Airport | ||
| SWPZ | Oricanga De Abreu | Oricanga De Abreu | Brazil | Airport | |||
| YOIT | Orielton | Orielton | Queensland | Australia | Airport | ||
| YORW | Orient Well | Orient Well | Western Australia | Australia | Airport | ||
| SYOR | ORJ | Orinduik | Orinduik | Guyana | Airport | ||
| SJLZ | Orinduque | Brazil | Airport | ||||
| EFOP | Oripaa | Oripaa | Finland | Airport | |||
| LIER | QOS | Oristano Fenosu | Oristano | Italy | Airport | ||
| SVOK | Oritupano | Oritupano | Venezuela | Airport | |||
| SNOX | Oriximina | Oriximina | Brazil | Airport | |||
| FA08 | Orlampa Inc | Polk City | Florida | United States | Airport | ||
| ENOL | OLA | Orland | Orland | Norway | Airport | ||
| X04 | Orlando Apopka | Apopka | Florida | United States | Airport | ||
| SBJU | Orlando Bezerra De Menezes | Brazil | Airport | ||||
| SSBY | Orlando Chesini Ometto | Orlando Chesini Ometto | Brazil | Airport | |||
| 6FA8 | Orlando Hyatt House | Kissimmee | Florida | United States | Heliport | ||
| KMCO | MCO | MCO | Orlando International | Orlando | Florida | United States | Airport |
| FA83 | Orlando North Airpark | Zellwood | Florida | United States | Airport | ||
| FD28 | Orlando Regional Medical Center | Orlando | Florida | United States | Heliport | ||
| KSFB | SFB | SFB | Orlando Sanford International | Orlando | Florida | United States | Airport |
| 7I4 | Orleans | Orleans | Indiana | United States | Airport | ||
| YORL | Orleans Farm | Orleans Farm | Western Australia | Australia | Airport | ||
| LFOZ | Orleans Saint Denis | Orleans-St-Denis De L'hotel | France | Airport | |||
| OPOR | Ormara | Ormara | Pakistan | Airport | |||
| RPVO | OMC | Ormoc | Ormoc | Leyte | Philippines | Airport | |
| KOMN | OMN | Ormond Beach Municipal | Ormond Beach | Florida | United States | Airport | |
| ESNO | OER | Ornskoldsvik | Ornskoldsvik | Sweden | Airport | ||
| SVON | Oro Negro | Oro Negro | Venezuela | Airport | |||
| PR19 | Orocovis Health Center | Orocovis | Puerto Rico | United States | Heliport | ||
| SKOE | ORC | Orocue | Orocue | Colombia | Airport | ||
| EK69 | Oroe | Denmark | Airport | ||||
| S68 | Orofino Municipal | Orofino | Idaho | United States | Airport | ||
| 75C | Orogrande | Orogrande | Idaho | United States | Airport | ||
| FYOR | Oropoko | Oropoko | Namibia | Airport | |||
| KOVE | OVE | OVE | Oroville Municipal | Oroville | California | United States | Airport |
| YOPH | Orpheus Island | Orpheus Island | Queensland | Australia | Seaplane Base | ||
| 24NE | Orr | Lakeside | Nebraska | United States | Airport | ||
| NE25 | Orr Field | North Platte | Nebraska | United States | Airport | ||
| 33NE | Orr Ranch | Hay Springs | Nebraska | United States | Airport | ||
| KORB | ORB | Orr Regional | Orr | Minnesota | United States | Airport | |
| YORR | Orroroo | Orroroo | South Australia | Australia | Airport | ||
| ESNR | Orsa | Orsa | Sweden | Airport | |||
| UWOR | OSW | Orsk | Orsk | Orenburg | Russia | Airport | |
| 7PA4 | Orson Field | Orson | Pennsylvania | United States | Airport | ||
| ENOV | HOV | Orsta-Volda Hovden | Oersta/Volda | Norway | Airport | ||
| 5IN6 | Orthodontic Strip | Westville | Indiana | United States | Airport | ||
| 50MN | Ortonville Hospital | Ortonville | Minnesota | United States | Heliport | ||
| KVVV | VVV | Ortonville Municipal-Martinson Field | Ortonville | Minnesota | United States | Airport | |
| SJBE | Ortosintese | Brazil | Heliport | ||||
| 86NE | Orum Aerodrome | Blair | Nebraska | United States | Airport | ||
| YORU | Orungal | Orungal | Queensland | Australia | Airport | ||
| FY3A | Orupembe | Namibia | Airport | ||||
| SDBS | Os Bandeirantes | Brazil | Heliport | ||||
| 53K | Osage City Municipal | Osage City | Kansas | United States | Airport | ||
| D02 | Osage Municipal | Osage | Iowa | United States | Airport | ||
| RJOO | ITM | Osaka International | Osaka | Japan | Airport | ||
| RKSO | OSN | Osan Ab | Osan | South Korea | Airport | ||
| 02FA | Osborn Airfield | Groveland | Florida | United States | Airport | ||
| 8CA0 | Osborne | Victorville | California | United States | Airport | ||
| YOSI | Osborne Island | Osborne Island | Western Australia | Australia | Seaplane Base | ||
| YOSB | Osborne Mine | Osborne Mine | Queensland | Australia | Airport | ||
| K75 | Osborne Municipal | Osborne | Kansas | United States | Airport | ||
| SVCS | Oscar Machado Zuloaga | Charallave | Miranda | Venezuela | Airport | ||
| IA40 | Osceola Community Hospital | Sibley | Iowa | United States | Heliport | ||
| 7M4 | Osceola Municipal | Osceola | Arkansas | United States | Airport | ||
| I75 | Osceola Municipal | Osceola | Iowa | United States | Airport | ||
| 3MO | Osceola Municipal | Osceola | Missouri | United States | Airport | ||
| 12FD | Osceola Regional Hospital | Kissimmee | Florida | United States | Heliport | ||
| 19FD | Osceola Sheriff's Ofc - Bronson Hwy | Kissimmee | Florida | United States | Heliport | ||
| EDOQ | Oschatz | Germany | Airport | ||||
| EDOL | Oschersleben | Germany | Airport | ||||
| 51M | Oscoda County Dennis Kauffman Memorial | Mio | Michigan | United States | Airport | ||
| KOSC | OSC | OSC | Oscoda-Wurtsmith | Oscoda | Michigan | United States | Airport |
| K80E | 80E | Oscura AAF Aux | Oscura | New Mexico | United States | Airport | |
| LL01 | Osf Holy Family Medical Center | Monmouth | Illinois | United States | Heliport | ||
| LL37 | Osf Saint Francis Medical Center | Peoria | Illinois | United States | Heliport | ||
| IL40 | Osf St Joseph Medical Center | Bloomington | Illinois | United States | Heliport | ||
| UAFO | OSS | Osh | Osh | Osh | Kyrgyzstan | Airport | |
| FYOS | Oshakati | Oshakati | Namibia | Airport | |||
| CYOO | CYOO | YOO | Oshawa | Oshawa | Ontario | Canada | Airport |
| LDOS | Osijek | Osijek | Croatia | Airport | |||
| FYIR | Osire | Osire | Namibia | Airport | |||
| KOOA | OOA | OOA | Oskaloosa Municipal | Oskaloosa | Iowa | United States | Airport |
| ESMO | OSK | Oskarshamn | Oskarshamn | Sweden | Airport | ||
| ENGM | OSL | Oslo Gardermoen | Oslo | Norway | Airport | ||
| VGSY | ZYL | Osmany International | Sylhet | Bangladesh | Airport | ||
| EDWO | Osnabrueck Atterheide | Osnabruck-Atterheide | Germany | Airport | |||
| UKHH | HRK | Osnova International | Kharkiv (Kharkov) | Kharkiv | Ukraine | Airport | |
| XA49 | Oso Canyon | Ozona | Texas | United States | Airport | ||
| FYSN | Osona | Osona | Namibia | Airport | |||
| SSOS | Osorio | Brazil | Airport | ||||
| YOPY | Osprey Reef | Osprey Reef | Queensland | Australia | Seaplane Base | ||
| 78WI | Osseo Medical Center | Osseo | Wisconsin | United States | Heliport | ||
| 4TS9 | Ossiport | Austin | Texas | United States | Heliport | ||
| UUMO | Ostafievo | Moscow (Moskva) | Moskva | Russia | Airport | ||
| 40NJ | Osterman | Neshanic | New Jersey | United States | Heliport | ||
| LKMT | OSR | Ostrava Mosnov | Ostrava | Czech Republic | Airport | ||
| SVAC | AGV | Oswaldo Guevara Mujica | Acarigua | Portuguesa | Venezuela | Airport | |
| KFZY | FZY | Oswego County | Fulton | New York | United States | Airport | |
| 05NY | Oswego County At Pulaski | Pulaski | New York | United States | Heliport | ||
| K67 | Oswego Municipal | Oswego | Kansas | United States | Airport | ||
| FYOV | Otavi | Otavi | Namibia | Airport | |||
| 72NM | Otero Mill | La Luz | New Mexico | United States | Airport | ||
| 24WA | Othello Community Hospital | Othello | Washington | United States | Heliport | ||
| S70 | Othello Municipal | Othello | Washington | United States | Airport | ||
| CT71 | Otis Helistop Division Of Utc | Farmington | Connecticut | United States | Heliport | ||
| FYRO | Otjikaru | Otjikaru | Namibia | Airport | |||
| FYGW | Otjimbingwe | Otjimbingwe | Namibia | Airport | |||
| FYTN | Otjinene | Otjinene | Namibia | Airport | |||
| FY3C | Otjiruze | Namibia | Airport | ||||
| FYTZ | Otjisazu | Otjisazu | Namibia | Airport | |||
| FY3D | Otjitambi | Namibia | Airport | ||||
| FY3E | Otjite | Namibia | Airport | ||||
| FYTW | Otjiwa Game Ranch | Otjiwa Game Ranch | Namibia | Airport | |||
| FYTJ | Otjohorongo | Otjohorongo | Namibia | Airport | |||
| FYOB | Otjonjise | Otjonjise | Namibia | Airport | |||
| FY3G | Otjosondu (Ebenezer) | Namibia | Airport | ||||
| FY3H | Otjosongombe | Namibia | Airport | ||||
| FY3I | Otjovasandu | Namibia | Airport | ||||
| LKOT | Otrokovice | Otrokovice | Czech Republic | Airport | |||
| 7TS8 | Ott Farms | Dimmitt | Texas | United States | Airport | ||
| Z98 | Ottawa Executive | Zeeland | Michigan | United States | Airport | ||
| KOWI | OWI | Ottawa Municipal | Ottawa | Kansas | United States | Airport | |
| LL25 | Ottawa Regional Hospital | Ottawa | Illinois | United States | Heliport | ||
| CYND | CYND | YND | Ottawa/Gatineau | Ottawa | Quebec | Canada | Airport |
| CYOW | CYOW | YOW | Ottawa/Macdonald-Cartier International | Ottawa | Ontario | Canada | Airport |
| LOAA | Ottenschlag | Ottenschlag | Austria | Airport | |||
| CJV4 | JV4 | Otter Lake | Otter Lake | Saskatchewan | Canada | Airport | |
| CKB4 | KB4 | Otter Lake Water Aerodrome | Otter Lake | Saskatchewan | Canada | Seaplane Base | |
| 81LL | Otterbach Farm | Mendota | Illinois | United States | Airport | ||
| 5WN9 | Ottman Landing | Maiden Rock | Wisconsin | United States | Airport | ||
| 62TE | Otto Kaiser Hospital | Kenedy | Texas | United States | Heliport | ||
| 3IA6 | Ottumwa Hospital | Ottumwa | Iowa | United States | Heliport | ||
| KOTM | OTM | OTM | Ottumwa Regional | Ottumwa | Iowa | United States | Airport |
| SKOT | OTU | Otu | Otu | Colombia | Airport | ||
| AR42 | Ouachita County Medical Center | Camden | Arkansas | United States | Heliport | ||
| DFFD | OUA | Ouagadougou | Ouagadougou | Burkina Faso | Airport | ||
| DFCC | OUG | Ouahigouya | Ouahigouya | Burkina Faso | Airport | ||
| FMCV | AJN | Ouani | Anjouan | Comoros | Airport | ||
| DAUU | OGX | Ouargla | Ouargla | Algeria | Airport | ||
| GMMZ | OZZ | Ouarzazate | Ouarzazate | Morocco | Airport | ||
| EBOT | Oud Turnhout | Oud Turnhout | Belgium | Airport | |||
| FAOH | OUH | Oudtshoorn | Oudtshoorn | South Africa | Airport | ||
| DAUH | HME | Oued Irara | Hassi Messaoud | Algeria | Airport | ||
| LFEC | Ouessant | Ouessant | France | Airport | |||
| FCOU | OUE | Ouesso | Ouesso | Republic of the Congo | Airport | ||
| EFOU | OUL | Oulu | Oulu | Finland | Airport | ||
| 0NC6 | Our Community Hospital | Scotland Neck | North Carolina | United States | Heliport | ||
| 7MD0 | Our Domain | Marydel | Maryland | United States | Airport | ||
| 6KY9 | Our Lady Of Bellefonte Hospital | Russell | Kentucky | United States | Heliport | ||
| 48LS | Our Lady Of Lourdes Regional Medical Center | Lafayette | Louisiana | United States | Heliport | ||
| 29LA | Our Lady Of The Lake R.M.C. | Baton Rouge | Louisiana | United States | Heliport | ||
| 22NJ | Our Lady's | Mount Holly | New Jersey | United States | Heliport | ||
| YODL | Ourdell | Ourdell | Queensland | Australia | Airport | ||
| SNOY | Ouricuri | Ouricuri | Brazil | Airport | |||
| SDOW | Ourilandia Do Norte | Ourilandia Do Norte | Brazil | Airport | |||
| SDOU | Ourinhos | Ourinhos | Brazil | Airport | |||
| SNDO | Ouro Branco | Brazil | Airport | ||||
| SWOF | Ouro Fino | Brazil | Airport | ||||
| SNOF | Ouro Fino | Ouro Fino | Brazil | Airport | |||
| SNEQ | Ouro Negro | Ouro Negro | Brazil | Heliport | |||
| SNRC | Ouro Verde | Ouro Verde | Brazil | Heliport | |||
| SNII | Ouroland | Brazil | Airport | ||||
| MT94 | Ousel Falls | Big Sky | Montana | United States | Airport | ||
| EG78 | Out Skerries | Out Skerries | United Kingdom | Airport | |||
| KATW | ATW | ATW | Outagamie County Regional | Appleton | Wisconsin | United States | Airport |
| 5XS7 | Outback | Lockney | Texas | United States | Airport | ||
| AZ01 | Outback Ranch Airstrip | Wenden | Arizona | United States | Airport | ||
| SNEC | Outeiro Das Brisas | Brazil | Airport | ||||
| NC88 | Outer Banks | Nags Head | North Carolina | United States | Heliport | ||
| FYOJ | OJO | Outjo | Outjo | Namibia | Airport | ||
| KCKV | CKV | CKV | Outlaw Field | Clarksville | Tennessee | United States | Airport |
| 16XS | Outlaw Flyers | Conroe | Texas | United States | Airport | ||
| CKR9 | KR9 | Outlook | Outlook | Saskatchewan | Canada | Airport | |
| NWWV | UVE | Ouvea | Fayaoue (Ouvea Island), Loyalty Islands | New Caledonia | France | Airport | |
| 4K5 | KOZ | Ouzinkie | Ouzinkie | Alaska | United States | Airport | |
| LPOV | Ovar | Ovar | Portugal | Airport | |||
| LLOV | VDA | Ovda | Ovda | Israel | Airport | ||
| 12SC | Over The Hill | Elgin | South Carolina | United States | Airport | ||
| FAOB | Overberg | Overberg | South Africa | Airport | |||
| MI14 | Overflow Pad (Lower Pad) | Ann Arbor | Michigan | United States | Heliport | ||
| ESNE | Overkalix | Overkalix | Sweden | Airport | |||
| 1WT6 | Overlake Hospital Ems | Bellevue | Washington | United States | Heliport | ||
| SN54 | Overland Park Regional Medical Center | Overland Park | Kansas | United States | Heliport | ||
| 27ND | Overland-Lohse Field | Alamo | North Dakota | United States | Airport | ||
| CO75 | Overlook Athletic Club | Breckenridge | Colorado | United States | Heliport | ||
| 4LA8 | Overton Private | Clinton | Louisiana | United States | Airport | ||
| D82 | Ovid | Ovid | New York | United States | Airport | ||
| FCOO | FTX | Owando | Owando (Form. Fort-Rousset) | Republic of the Congo | Airport | ||
| Y92 | Owasco | Moravia | New York | United States | Airport | ||
| KOWA | OWA | OWA | Owatonna Degner Regional | Owatonna | Minnesota | United States | Airport |
| NK49 | Owego | Owego | New York | United States | Heliport | ||
| 0KY0 | Owen Air Park | Owenton | Kentucky | United States | Airport | ||
| MT01 | Owen Bros | Geraldine | Montana | United States | Airport | ||
| 20AK | Owen Field | Big Lake | Alaska | United States | Airport | ||
| H58 | Owen Field | Seymour | Missouri | United States | Airport | ||
| 4XA3 | Owen Field | Clyde | Texas | United States | Airport | ||
| ID39 | Owen Ranches Inc | Bruneau | Idaho | United States | Airport | ||
| MWCR | GCM | Owen Roberts International | Grand Cayman | Cayman Islands | United Kingdom | Airport | |
| CYOS | CYOS | YOS | Owen Sound Billy Bishop Regional | Owen Sound | Ontario | Canada | Airport |
| WS42 | Owen-Withee | Withee | Wisconsin | United States | Airport | ||
| 15TS | Owens Country Sausage | Richardson | Texas | United States | Heliport | ||
| II29 | Owens Field | Greencastle | Indiana | United States | Airport | ||
| KOWB | OWB | OWB | Owensboro-Daviess County | Owensboro | Kentucky | United States | Airport |
| 9MO8 | Owensville Ambulance District | Owensville | Missouri | United States | Heliport | ||
| 4CO2 | Owl Canyon | Wellington | Colorado | United States | Gliderport | ||
| CD81 | Owl Ridge | Walden | Colorado | United States | Heliport | ||
| KRNP | RNP | Owosso Community | Owosso | Michigan | United States | Airport | |
| 10U | Owyhee | Owyhee | Nevada | United States | Airport | ||
| 28U | Owyhee Reservoir State | Owyhee | Oregon | United States | Airport | ||
| 04WA | Ox Meadows | Spokane | Washington | United States | Airport | ||
| OR12 | Oxbow | Homestead | Oregon | United States | Airport | ||
| OR83 | Oxbow | Oxbow Village | Oregon | United States | Heliport | ||
| MA73 | Oxbow Corporation | Dover | Massachusetts | United States | Heliport | ||
| OR17 | Oxbow Ranch | Prairie City | Oregon | United States | Airport | ||
| FB61 | Oxford | Botswana | Airport | ||||
| 81B | Oxford County Regional | Oxford | Maine | United States | Airport | ||
| 55K | Oxford Municipal | Oxford | Kansas | United States | Airport | ||
| YOLY | Oxley | Oxley | New South Wales | Australia | Airport | ||
| YOXL | Oxley Police Academy | Oxley Police Academy | Queensland | Australia | Heliport | ||
| KOXR | OXR | OXR | Oxnard | Oxnard | California | United States | Airport |
| HL55 | Oxy A 103 | Oxy A 103 | Libya | Airport | |||
| FOGO | OYE | Oyem | Oyem | Gabon | Airport | ||
| CED3 | ED3 | Oyen Muni | Oyen | Alberta | Canada | Airport | |
| UEMJ | Oymyakon | Oymyakon | Russia | Airport | |||
| 5NJ8 | Oyster Creek Generating Station | Forked River | New Jersey | United States | Heliport | ||
| YOYS | Oyster Reef | Oyster Reef | Queensland | Australia | Seaplane Base | ||
| 2KY4 | Oz | Elizabethtown | Kentucky | United States | Airport | ||
| RPMO | OZC | Ozamis | Ozamis City | Misamis Occidental | Philippines | Airport | |
| AR11 | Ozark Aerodrome | Rogers | Arkansas | United States | Airport | ||
| 05AR | Ozark Skies Airpark | Kingston | Arkansas | United States | Airport | ||
| 7M5 | Ozark-Franklin County | Ozark | Arkansas | United States | Airport | ||
| 74MO | Ozarkcom Army | St Louis | Missouri | United States | Heliport | ||
| 0AR4 | Ozarks Community Hospital | Gravette | Arkansas | United States | Heliport | ||
| 50MO | Ozarks Medical Center | West Plains | Missouri | United States | Heliport | ||
| 9WN3 | Ozaukee | Port Washington | Wisconsin | United States | Airport | ||
| KOZA | OZA | OZA | Ozona Municipal | Ozona | Texas | United States | Airport |
| RJOZ | Ozuki | Ozuki | Japan | Airport |
The previous list may be incomplete at any given time.
