| 50 Airlines Found | Try a new Airline Search. |
| Airline Name | IATA ID | ICAO ID | Alliance | Country | Country Code |
|---|---|---|---|---|---|
| OAG | CR | ABC | United Kingdom | GB | |
| Ocean Air | BCN | Mauritania | MR | ||
| Ocean Wings Commuter Service | TUK | United States | US | ||
| Oceanic Airlines | O2 | Guinea | GN | ||
| Odyssey International | ODY | Canada | CA | ||
| Office Federal De'Aviation Civile | FOC | Switzerland | CH | ||
| Ogooue Air Cargo | GBO | Gabon | GA | ||
| Okada Airlines | OKJ | Nigeria | NG | ||
| Okay Airways | BK* | OKA | China | CN | |
| Oklahoma Department of Public Safety | OKL | United States | US | ||
| Olimp Air | KVK | Kazakhstan | KZ | ||
| Olympic Air | OA | OAL | Greece | GR | |
| Oman Air | WY | OMA | Oman | OM | |
| Omni - Aviacao e Tecnologia | OC | OAV | Portugal | PT | |
| Omni Air International | OY | OAE | United States | US | |
| Omni Air Transport | DRL | United States | US | ||
| Omniflys | OMF | Mexico | MX | ||
| One Airlines | ONS | Chile | CL | ||
| Onetime Airlines Zambia | OTM | Zambia | ZM | ||
| Ontario Government | TRI | Canada | CA | ||
| Onur Air | 8Q | OHY | Turkey | TR | |
| Opal Air | OPA | Australia | AU | ||
| Open Skies Consultative Commission | OSY | United States | US | ||
| OpenSkies | EC | BOS | oneworld | United Kingdom | GB |
| Operadora de Lineas Ejecutivas | OLE | Mexico | MX | ||
| Operadora de Transportes Aéreos | OTP | Mexico | MX | ||
| Operadora Turistica Aurora | ORR | Mexico | MX | ||
| Operation Enduring Freedom | LLO | Canada | CA | ||
| Operational Aviation Services | OAX | Australia | AU | ||
| Orange Air | O3* | ORN | United States | US | |
| Orange Air Sierra Leone | O5* | ORJ | Sierra Leone | SL | |
| Orange Aviation | ORE | Israel | IL | ||
| Orebro Aviation | BUE | Sweden | SE | ||
| Orel State Air Enterprise | ORM | Russia | RU | ||
| Organizacoes Mambra | OML | Angola | AO | ||
| Orient Airlines | OTR | Sudan | SD | ||
| Orient Thai Airlines | OX | OEA | Thailand | TH | |
| Oriental Air Bridge | OC | NGK | Japan | JP | |
| Oriental Airlines | OAC | Nigeria | NG | ||
| Orion Air Charter | OED | South Africa | ZA | ||
| Orion-x | OIX | Russia | RU | ||
| Orlan-2000 | KOV | Kazakhstan | KZ | ||
| Orscom Tourist Installations Company | OAD | Egypt | EG | ||
| OSACOM | JPA | United States | US | ||
| Ostend Air College | OCO | Belgium | BE | ||
| Oulun Tilauslento | FNL | Finland | FI | ||
| Out Of The Blue Air Safaris | OOT | South Africa | ZA | ||
| Overland Airways | OJ | OLA | Nigeria | NG | |
| Owenair | OWE | South Africa | ZA | ||
| Oxley Aviation | OAA | Australia | AU |