| Rethymno to Olympia Heights (Florida) | 5,967.16 mi (9,603.21 km) |
| Rethymno to Omaha (Nebraska) | 5,939.46 mi (9,558.64 km) |
| Rethymno to On Top of the World Designated Place (Florida) | 5,916.83 mi (9,522.21 km) |
| Rethymno to Onalaska (Wisconsin) | 5,635.94 mi (9,070.17 km) |
| Rethymno to Oneida (New York) | 5,051.51 mi (8,129.62 km) |
| Rethymno to Oneonta (New York) | 5,049.47 mi (8,126.33 km) |
| Rethymno to Ontario (California) | 7,052.10 mi (11,349.26 km) |
| Rethymno to Ontario (Oregon) | 6,441.23 mi (10,366.16 km) |
| Rethymno to Opa-locka (Florida) | 5,955.60 mi (9,584.62 km) |
| Rethymno to Opelika (Alabama) | 5,904.28 mi (9,502.01 km) |
| Rethymno to Opelousas (Louisiana) | 6,297.69 mi (10,135.15 km) |
| Rethymno to Orange (California) | 7,072.40 mi (11,381.93 km) |
| Rethymno to Orange (Texas) | 6,389.40 mi (10,282.75 km) |
| Rethymno to Orange City (Florida) | 5,876.76 mi (9,457.73 km) |
| Rethymno to Orangeburg (South Carolina) | 5,664.31 mi (9,115.83 km) |
