| Abbreviation | Definition |
|---|---|
| ORE | Orange Municipal Airport, Orange, Massachusetts USA |
| ORF | Norfolk International Airport, Norfolk/ Virginia Beach/ Williamsburg, Virginia USA |
| ORG | Z En Ho Airport, Paramaribo, Panama Republic |
| ORH | Worcester Regional Airport, Worcester, Massachusetts USA |
| ORI | Port Lions, Alaska USA |
| ORJ | Orinduik, Guyana |
| ORK | Cork International Airport, Cork, Republic of Ireland |
| ORL | Orlando, Florida USA |
| ORMM | Basrah International, Iraq |
| ORN | Oran, Algeria |
| ORO | Yoro, Honduras |
| ORQ | Norwalk, Connecticut USA |
| ORR | Yorketown, South Australia, Australia |
| ORS | Orpheus Island Resort, Queensland, Australia |
| ORT | Northway, Alaska USA |
| ORV | Noorvik, Alaska USA |
| ORW | Ormara, Pakistan |
| ORX | Oriximina, PA, Brazil |
| ORY | Orly Airport, Paris, France |
| ORZ | Orange Walk, Belize |