| Rottofreno to Olympia Heights (Florida) | 4,977.01 mi (8,009.72 km) |
| Rottofreno to Omaha (Nebraska) | 4,912.16 mi (7,905.36 km) |
| Rottofreno to On Top of the World Designated Place (Florida) | 4,909.96 mi (7,901.82 km) |
| Rottofreno to Onalaska (Wisconsin) | 4,607.92 mi (7,415.72 km) |
| Rottofreno to Oneida (New York) | 4,023.34 mi (6,474.94 km) |
| Rottofreno to Oneonta (New York) | 4,022.45 mi (6,473.50 km) |
| Rottofreno to Ontario (California) | 6,049.43 mi (9,735.61 km) |
| Rottofreno to Ontario (Oregon) | 5,463.13 mi (8,792.07 km) |
| Rottofreno to Opa-locka (Florida) | 4,965.01 mi (7,990.41 km) |
| Rottofreno to Opelika (Alabama) | 4,883.17 mi (7,858.70 km) |
| Rottofreno to Opelousas (Louisiana) | 5,271.80 mi (8,484.14 km) |
| Rottofreno to Orange (California) | 6,069.83 mi (9,768.44 km) |
| Rottofreno to Orange (Texas) | 5,362.34 mi (8,629.86 km) |
| Rottofreno to Orange City (Florida) | 4,872.69 mi (7,841.84 km) |
| Rottofreno to Orangeburg (South Carolina) | 4,648.20 mi (7,480.55 km) |
