| Rapallo to Olympia Heights (Florida) | 4,978.04 mi (8,011.37 km) |
| Rapallo to Omaha (Nebraska) | 4,931.79 mi (7,936.95 km) |
| Rapallo to On Top of the World Designated Place (Florida) | 4,914.46 mi (7,909.06 km) |
| Rapallo to Onalaska (Wisconsin) | 4,627.15 mi (7,446.68 km) |
| Rapallo to Oneida (New York) | 4,035.44 mi (6,494.41 km) |
| Rapallo to Oneonta (New York) | 4,033.77 mi (6,491.72 km) |
| Rapallo to Ontario (California) | 6,075.81 mi (9,778.06 km) |
| Rapallo to Ontario (Oregon) | 5,493.52 mi (8,840.97 km) |
| Rapallo to Opa-locka (Florida) | 4,966.12 mi (7,992.20 km) |
| Rapallo to Opelika (Alabama) | 4,891.82 mi (7,872.62 km) |
| Rapallo to Opelousas (Louisiana) | 5,282.57 mi (8,501.47 km) |
| Rapallo to Orange (California) | 6,096.22 mi (9,810.91 km) |
| Rapallo to Orange (Texas) | 5,373.77 mi (8,648.24 km) |
| Rapallo to Orange City (Florida) | 4,876.52 mi (7,848.00 km) |
| Rapallo to Orangeburg (South Carolina) | 4,655.12 mi (7,491.69 km) |
