| Naantali to Olympia Heights (Florida) | 5,084.64 mi (8,182.93 km) |
| Naantali to Omaha (Nebraska) | 4,592.00 mi (7,390.11 km) |
| Naantali to On Top of the World Designated Place (Florida) | 4,942.70 mi (7,954.51 km) |
| Naantali to Onalaska (Wisconsin) | 4,312.75 mi (6,940.70 km) |
| Naantali to Oneida (New York) | 3,931.77 mi (6,327.58 km) |
| Naantali to Oneonta (New York) | 3,949.09 mi (6,355.44 km) |
| Naantali to Ontario (California) | 5,518.88 mi (8,881.77 km) |
| Naantali to Ontario (Oregon) | 4,857.01 mi (7,816.60 km) |
| Naantali to Opa-locka (Florida) | 5,071.53 mi (8,161.83 km) |
| Naantali to Opelika (Alabama) | 4,822.36 mi (7,760.83 km) |
| Naantali to Opelousas (Louisiana) | 5,142.51 mi (8,276.07 km) |
| Naantali to Orange (California) | 5,538.27 mi (8,912.98 km) |
| Naantali to Orange (Texas) | 5,213.52 mi (8,390.34 km) |
| Naantali to Orange City (Florida) | 4,922.43 mi (7,921.88 km) |
| Naantali to Orangeburg (South Carolina) | 4,639.46 mi (7,466.49 km) |
