| Nea Alikarnassos to Olympia Heights (Florida) | 6,003.75 mi (9,662.11 km) |
| Nea Alikarnassos to Omaha (Nebraska) | 5,968.06 mi (9,604.67 km) |
| Nea Alikarnassos to On Top of the World Designated Place (Florida) | 5,952.27 mi (9,579.25 km) |
| Nea Alikarnassos to Onalaska (Wisconsin) | 5,664.83 mi (9,116.66 km) |
| Nea Alikarnassos to Oneida (New York) | 5,083.87 mi (8,181.70 km) |
| Nea Alikarnassos to Oneonta (New York) | 5,082.15 mi (8,178.94 km) |
| Nea Alikarnassos to Ontario (California) | 7,075.86 mi (11,387.50 km) |
| Nea Alikarnassos to Ontario (Oregon) | 6,462.27 mi (10,400.01 km) |
| Nea Alikarnassos to Opa-locka (Florida) | 5,992.17 mi (9,643.47 km) |
| Nea Alikarnassos to Opelika (Alabama) | 5,938.15 mi (9,556.53 km) |
| Nea Alikarnassos to Opelousas (Louisiana) | 6,330.72 mi (10,188.30 km) |
| Nea Alikarnassos to Orange (California) | 7,096.14 mi (11,420.13 km) |
| Nea Alikarnassos to Orange (Texas) | 6,422.14 mi (10,335.44 km) |
| Nea Alikarnassos to Orange City (Florida) | 5,912.42 mi (9,515.13 km) |
| Nea Alikarnassos to Orangeburg (South Carolina) | 5,698.82 mi (9,171.37 km) |
