| Flekkefjord to Olympia Heights (Florida) | 4,614.93 mi (7,427.01 km) |
| Flekkefjord to Omaha (Nebraska) | 4,262.69 mi (6,860.14 km) |
| Flekkefjord to On Top of the World Designated Place (Florida) | 4,492.53 mi (7,230.03 km) |
| Flekkefjord to Onalaska (Wisconsin) | 3,969.73 mi (6,388.67 km) |
| Flekkefjord to Oneida (New York) | 3,508.29 mi (5,646.05 km) |
| Flekkefjord to Oneonta (New York) | 3,519.88 mi (5,664.70 km) |
| Flekkefjord to Ontario (California) | 5,295.40 mi (8,522.13 km) |
| Flekkefjord to Ontario (Oregon) | 4,666.82 mi (7,510.53 km) |
| Flekkefjord to Opa-locka (Florida) | 4,601.99 mi (7,406.19 km) |
| Flekkefjord to Opelika (Alabama) | 4,399.72 mi (7,080.66 km) |
| Flekkefjord to Opelousas (Louisiana) | 4,746.38 mi (7,638.56 km) |
| Flekkefjord to Orange (California) | 5,315.47 mi (8,554.42 km) |
| Flekkefjord to Orange (Texas) | 4,825.02 mi (7,765.12 km) |
| Flekkefjord to Orange City (Florida) | 4,467.14 mi (7,189.17 km) |
| Flekkefjord to Orangeburg (South Carolina) | 4,198.43 mi (6,756.72 km) |
