| Kohtla-Jarve to Olympia Heights (Florida) | 5,279.54 mi (8,496.61 km) |
| Kohtla-Jarve to Omaha (Nebraska) | 4,771.09 mi (7,678.32 km) |
| Kohtla-Jarve to On Top of the World Designated Place (Florida) | 5,136.59 mi (8,266.54 km) |
| Kohtla-Jarve to Onalaska (Wisconsin) | 4,494.48 mi (7,233.17 km) |
| Kohtla-Jarve to Oneida (New York) | 4,124.00 mi (6,636.93 km) |
| Kohtla-Jarve to Oneonta (New York) | 4,141.79 mi (6,665.57 km) |
| Kohtla-Jarve to Ontario (California) | 5,675.06 mi (9,133.12 km) |
| Kohtla-Jarve to Ontario (Oregon) | 5,007.28 mi (8,058.44 km) |
| Kohtla-Jarve to Opa-locka (Florida) | 5,266.43 mi (8,475.50 km) |
| Kohtla-Jarve to Opelika (Alabama) | 5,013.98 mi (8,069.21 km) |
| Kohtla-Jarve to Opelousas (Louisiana) | 5,330.90 mi (8,579.25 km) |
| Kohtla-Jarve to Orange (California) | 5,694.25 mi (9,164.00 km) |
| Kohtla-Jarve to Orange (Texas) | 5,400.84 mi (8,691.82 km) |
| Kohtla-Jarve to Orange City (Florida) | 5,116.65 mi (8,234.45 km) |
| Kohtla-Jarve to Orangeburg (South Carolina) | 4,832.79 mi (7,777.63 km) |
