| Prineville to Olympia (Washington) | 213.48 mi (343.55 km) |
| Prineville to Olympia Heights (Florida) | 2,591.58 mi (4,170.74 km) |
| Prineville to Omaha (Nebraska) | 1,270.38 mi (2,044.48 km) |
| Prineville to On Top of the World Designated Place (Florida) | 2,352.24 mi (3,785.57 km) |
| Prineville to Onalaska (Wisconsin) | 1,463.70 mi (2,355.60 km) |
| Prineville to Oneida (New York) | 2,230.91 mi (3,590.30 km) |
| Prineville to Oneonta (New York) | 2,273.26 mi (3,658.46 km) |
| Prineville to Ontario (California) | 729.79 mi (1,174.49 km) |
| Prineville to Ontario (Oregon) | 193.45 mi (311.32 km) |
| Prineville to Opa-locka (Florida) | 2,587.74 mi (4,164.56 km) |
| Prineville to Opelika (Alabama) | 2,060.77 mi (3,316.50 km) |
| Prineville to Opelousas (Louisiana) | 1,829.55 mi (2,944.38 km) |
| Prineville to Orange (California) | 743.07 mi (1,195.86 km) |
| Prineville to Orange (Texas) | 1,771.06 mi (2,850.25 km) |
| Prineville to Orange City (Florida) | 2,407.49 mi (3,874.47 km) |
