Airlines

• Ohio State University Flight Education Division OSU · United States
• Ohl Air Charterflug ECA · Germany
• Ok Aviation Wings NTF · Czech Republic
• Okada Airlines Limited OKJ · Nigeria
• Okay Airways Company Limited OKA · China
• Oklahoma Aviation Dba Soulbird OUL · United States
• Oklahoma Department Of Public Safety OKL · United States
• Oklahoma State University OST · United States
• Old Dominion Freight Lines FET · United States
• Olt Express Poland YAP · Poland
• Olympic Air OAL · Greece
• Olympic Broadcasting Services OBC · United Kingdom
• Olympus Airways OLY · Greece
• Oman Air OMA · Oman
• Oman Royal Flight ORF · Oman
• Omega Aerial Refueling Services OME · United States
• Omega Air Holdings FKS · United States
• Omni Air International OAE · United States
• Omni Air Transport DRL · United States
• Omni Aviacao E Tecnologia OAV · Portugal
• Omni Aviation Training Center ONI · Portugal
• Omni Blu Aviation OMB · Nigeria
• Omni Taxi Aereo OMI · Brazil
• Omnisky OMF · Mexico
• On Track Aviation OTK · United Kingdom
• One Air Limited HGO · United Kingdom
• One Airlines ONS · Chile
• One Airways OEW · Spain
• One Caribbean VCY · Saint Vincent and the Grenadines
• Onejetone Airways OJO · Kenya
• Onesky Aviation Services Spa OSC · Chile
• Onur Hava Tasimacilik Awms OHY · Turkey
• Open Flight OFL · France
• Open Skies Consultative Commission OSY · United States
• Open Sky Aviation OSA · Lebanon
• Openskies BOS · France
• Operaciones Aviacore Sa De Cv OPR · Mexico
• Operadora De Lineas Ejecutivas OLE · Mexico
• Operadora De Vuelos Ejecutivos OPV · Mexico
• Operadora Llaminmex OLL · Mexico
• Operational Support Airlift Command JPA · United States
• Orange Air ORN · United States
• Orange Aviation ORE · Israel
• Orange2fly Airlines OTF · Greece
• Orbest OBS · Portugal
• Orca Airways ORK · Canada
• Ordos General Aviation CYE · China
• Orenair ORB · Russia
• Organizacoes Mambra OML · Angola
• Organization Not Allocated A Designator On An Exclusive Basis YYY · Unknown or unassigned country
• Orient Airlines OTR · Sudan
• Orient Thai Airlines OEA · Thailand
• Oriental Air Bridge ORC · Japan
• Oriental Airlines Limited OAC · Nigeria
• Orion Air Charter OED · South Africa
• Orion Malta OXM · Malta
• Orion X OIX · Russia
• Orionair ORI · Spain
• Ornge Air PUL · Canada
• Orscom Tourist Installations Company OAD · Egypt
• Orsha Air ORH · Belarus
• Ortac Aoc ORT · Jersey
• Oryxjet OJT · United Kingdom
• Oscar Jet OSJ · Moldova
• Osh Air OAB · Kyrgyzstan
• Oslo Politidistrikt Helikoptertjenesten HEP · Norway
• Osm Aviation Academy SCQ · Sweden
• Ostend Air College OCO · Belgium
• Ott Airlines OTT · China
• Out Of The Blue Air Safaris OOT · South Africa
• Overland Airways Limited OLA · Nigeria
• Overstar OCJ · San Marino
• Owenair OWE · South Africa
• Owyhee Air Research WWF · United States
• Oxford Aviation Academy OXF · United Kingdom
• Oxus Airways OXS · Afghanistan
• Oyonnair OYO · France
• P & P Floss Pick Manufacturers KTL · South Africa
• P D Q Air Charter PDQ · United States
• P80 Air PMG · Thailand
• PTL Luftfahrtunternehmen GmbH Landshut KST · Germany
• Pacific Air Express Limited PAQ · Solomon Islands
• Pacific Air Express Australia PCF · Australia
• Pacific Airlines PIC · Viet Nam
• Pacific Alaska Airlines PAK · United States
• Pacific Aviation Corporation PCX · United States
• Pacific Coast Airlines PQA · United States
• Pacific Coast Jet PXT · United States
• Pacific Coastal Airline PCO · Canada
• Pacific International Airlines PIN · United States
• Pacific Island Aviation PSA · United States
• Pacific Jet PCJ · United States
• Pacific Northwest PNJ · United States
• Pacific Sky Aviation Inc LVW · Canada
• Pacific Southwest Airlines PSX · United States
• Pacific Wings NMI · United States
• Pacificair Airlines PFR · United States
• Package Delivery Xpress PDX · Bahamas
• Pad Aviation Service GmbH PVD · Germany
• Paisajes Espanoles PAE · Spain

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