Codes
+ Airline codes IATA ICAO Airline Call sign Country Comments
|ORN |Orange Air |ORANGE JET |United States |Allocated in 2014FAA Notice 7340.343 |- |IP |ONS |One Airlines |AIR DREAMS |Chile
|FET |Old Dominion Freight Lines |FREIGHT LINE |United States
|OCN |O Air |O-BIRD |France |defunct |- |UQ |OCM |O'Connor Airlines |OCONNOR |Australia |Defunct - Bankrupt
|DRL |Omni Air Transport |DRILLER |United States
|OWE |Owenair |OWENAIR |South Africa
|OB |AAN |Oasis Airlines |Oasis |Spain |defunct |- |O8 |OHK |Oasis Hong Kong Airlines |OASIS |Hong Kong |Defunct
|BCN |Ocean Air |BLUE OCEAN |Mauritania
|VC |VCX |Ocean Airlines |OCEANCARGO |Italy
|OCS |Ocean Sky UK |OCEANSKY |United Kingdom
|TUK |Ocean Wings Commuter Service |TUCKERNUCK |United States |New Island Connections |- |O2 || |Linear Air |HARPOON |United States |Allocated in 2017
|ODS |Odessa Airlines |ODESSA AIR |Ukraine
|FOC |Office Federal De'Aviation Civile |FOCA |Switzerland
|GBO |Ogooue Air Cargo | |Gabon
|OKJ |Okada Airlines |OKADA AIR |Nigeria
|OKP |Okapi Airways |OKAPI |Democratic Republic of Congo
|OKA |Okay Airways |OKAYJET |China
|OKL |Oklahoma Department of Public Safety |OKLAHOMA |United States |Troop O
|OLX |Olimex Aerotaxi |OLIMEX |Czech Republic
|KVK |Olimp Air |PONTA |Kazakhstan
|OL |OLT |OLT Express Germany |OLTRA |Germany
|OA |OAL |Olympic Air |OLYMPIC |Greece
|OLY |Olympic Aviation |OLAVIA |Greece
|WY |OMA |Oman Air |OMAN AIR |Oman
|ORF |Oman Royal Flight |OMAN |Oman
|OV |OMS |SalamAir |MAZOON |Oman | Oman’s first Low Cost Carrier
|OAV |Omni - Aviacao e Tecnologia |OMNI |Portugal
|OY |OAE |Omni Air International |OMNI-EXPRESS |United States
|ONI |OMNI AVIATION TRAINING CENTER |OMNI TRAINING |Portugal |Part of the same group as Omni - Aviacao e Tecnologia
|OMF |Omniflys |OMNIFLYS |Mexico
|ORL |On Air Limited |ON AIR |Canada
|OST |Oklahoma State University |OSTATE |United States
|OTG |One Two Go Airlines |THAI EXPRESS |Thailand
|OTM |Onetime Airlines Zambia |ZEDTIME |Zambia
|MED |Ontario Ministry of Health |MEDICAL |Canada
|8Q |OHY |Onur Air |ONUR AIR |Turkey
|OPA |Opal Air | |Australia
|OSA |Open Sky Aviation | |Lebanon
|BOS |OpenSkies |MISTRAL |United Kingdom
|ORR |Operadora Turistica Aurora |TURISTICA AURORA |Mexico
|OLE |Operadora de Lineas Ejecutivas |OPERADORA |Mexico
|OTP |Operadora de Transportes Aéreos |OPERADORA AEREO |Mexico
|OPV |Operadora de Veulos Ejectutivos |OPERADORA DE VUELOS |Mexico
|LLO |Operation Enduring Freedom |APOLLO |Canada
|OAX |Operational Aviation Services | |Australia
|ORD |Orange Air Services |ORANGE SERVICES |Sierra Leone
|ORJ |Orange Air Sierra Leone |ORANGE SIERRA |Sierra Leone
|ORE |Orange Aviation |ORANGE AVIATION |Israel
|ORX |Orbit Express Airlines |OREX |Turkey
|ORK |Orca Air |ORCA TAXI |Egypt
|BUE |Orebro Aviation |BLUELIGHT |Sweden
|ORM |Orel State Air Enterprise |ORPRISE |Russia
|R2 |ORB |Orenburg Airlines |ORENBURG |Russia
|OTA |Organizacion De Transportes Aéreos |ORGANIZACION |Mexico
|OML |Organizacoes Mambra |MAMBRA |Angola
|OVV |Orient Air |ORIENTSYR |Syrian Arab Republic
|OTR |Orient Airlines |ORIENTROC |Sudan
|ORN |Orient Airways |ORIENT LINER |Pakistan
|OX |OEA |Orient Thai Airlines |ORIENT THAI |Thailand
|NGK |Oriental Air Bridge |ORIENTAL BRIDGE |Japan
|OAC |Oriental Airlines |ORIENTAL AIR |Nigeria
|QO |OGN |Origin Pacific Airways |ORIGIN |New Zealand
|OED |Orion Air Charter |ORION CHARTER |South Africa
|OIX |Orion-x |ORIONIX |Russia
|KOV |Orlan-2000 |ORLAN |Kazakhstan
|RNG |Orange Aircraft Leasing |ORANGE |Netherlands
|OAD |Orscom Tourist Installations Company |ORSCOM |Egypt
|JPA |OSACOM |J-PAT |United States |United States Army
|OSH |Osh Avia |OSH AVIA |Kyrgyzstan
|OCO |Ostend Air College |AIR COLLEGE |Belgium
|ODY |Odyssey International |ODYSSEY |Canada
|FNL |Oulun Tilauslento |FINN FLIGHT |Finland
|ON |RON |Our Airline |OUR AIRLINE |Nauru |formerly Air Nauru
|OOT |Out Of The Blue Air Safaris |OOTBAS |South Africa
|OJ |OLA |Overland Airways |OVERLAND |Nigeria
|OAR |ONE AIR |BOSS AIR |Spain
|OXE |Oxaero |OXOE |United Kingdom
|WDK |Oxford Air Services |WOODSTOCK |United Kingdom
|OAA |Oxley Aviation | |Australia
|OZ |OZR |Ozark Air Lines |OZARK |United States |Defunct |- |O7 |OZJ |OzJet |AUSJET |Australia
|OSU |Ohio State University |SCARLET |United States
|OA |OAL |Olympic Airlines |OLYMPIC |Greece |Defunct |- |OB |AAN |Oasis International Airlines Now assigned to Boliviana de Aviacion (BoA) |OASIS |Spain |Ceased operations
|ORT |Ortac |SKYWALKER |Jersey |
References