| Loviisa to Olympia Heights (Florida) | 5,214.35 mi (8,391.68 km) |
| Loviisa to Omaha (Nebraska) | 4,693.23 mi (7,553.03 km) |
| Loviisa to On Top of the World Designated Place (Florida) | 5,068.71 mi (8,157.29 km) |
| Loviisa to Onalaska (Wisconsin) | 4,417.54 mi (7,109.35 km) |
| Loviisa to Oneida (New York) | 4,053.76 mi (6,523.90 km) |
| Loviisa to Oneonta (New York) | 4,072.16 mi (6,553.51 km) |
| Loviisa to Ontario (California) | 5,593.81 mi (9,002.36 km) |
| Loviisa to Ontario (Oregon) | 4,925.89 mi (7,927.46 km) |
| Loviisa to Opa-locka (Florida) | 5,201.21 mi (8,370.54 km) |
| Loviisa to Opelika (Alabama) | 4,942.96 mi (7,954.92 km) |
| Loviisa to Opelousas (Louisiana) | 5,257.16 mi (8,460.58 km) |
| Loviisa to Orange (California) | 5,612.99 mi (9,033.23 km) |
| Loviisa to Orange (Texas) | 5,326.43 mi (8,572.07 km) |
| Loviisa to Orange City (Florida) | 5,049.46 mi (8,126.33 km) |
| Loviisa to Orangeburg (South Carolina) | 4,763.98 mi (7,666.88 km) |
