| Orestiada to Olympia Heights (Florida) | 5,854.59 mi (9,422.05 km) |
| Orestiada to Omaha (Nebraska) | 5,687.12 mi (9,152.54 km) |
| Orestiada to On Top of the World Designated Place (Florida) | 5,777.21 mi (9,297.52 km) |
| Orestiada to Onalaska (Wisconsin) | 5,388.44 mi (8,671.86 km) |
| Orestiada to Oneida (New York) | 4,857.70 mi (7,817.72 km) |
| Orestiada to Oneonta (New York) | 4,861.17 mi (7,823.30 km) |
| Orestiada to Ontario (California) | 6,742.78 mi (10,851.46 km) |
| Orestiada to Ontario (Oregon) | 6,109.26 mi (9,831.90 km) |
| Orestiada to Opa-locka (Florida) | 5,842.42 mi (9,402.46 km) |
| Orestiada to Opelika (Alabama) | 5,732.97 mi (9,226.33 km) |
| Orestiada to Opelousas (Louisiana) | 6,109.21 mi (9,831.82 km) |
| Orestiada to Orange (California) | 6,762.83 mi (10,883.73 km) |
| Orestiada to Orange (Texas) | 6,195.61 mi (9,970.87 km) |
| Orestiada to Orange City (Florida) | 5,742.28 mi (9,241.31 km) |
| Orestiada to Orangeburg (South Carolina) | 5,506.46 mi (8,861.79 km) |
