| Perama to Olympia Heights (Florida) | 5,836.44 mi (9,392.84 km) |
| Perama to Omaha (Nebraska) | 5,770.73 mi (9,287.09 km) |
| Perama to On Top of the World Designated Place (Florida) | 5,777.74 mi (9,298.38 km) |
| Perama to Onalaska (Wisconsin) | 5,468.07 mi (8,800.00 km) |
| Perama to Oneida (New York) | 4,896.21 mi (7,879.69 km) |
| Perama to Oneonta (New York) | 4,895.62 mi (7,878.74 km) |
| Perama to Ontario (California) | 6,872.87 mi (11,060.81 km) |
| Perama to Ontario (Oregon) | 6,258.43 mi (10,071.98 km) |
| Perama to Opa-locka (Florida) | 5,824.67 mi (9,373.91 km) |
| Perama to Opelika (Alabama) | 5,755.98 mi (9,263.36 km) |
| Perama to Opelousas (Louisiana) | 6,145.06 mi (9,889.52 km) |
| Perama to Orange (California) | 6,893.13 mi (11,093.43 km) |
| Perama to Orange (Texas) | 6,235.43 mi (10,034.96 km) |
| Perama to Orange City (Florida) | 5,739.17 mi (9,236.30 km) |
| Perama to Orangeburg (South Carolina) | 5,519.58 mi (8,882.91 km) |
