| San Giovanni in Persiceto to Olympia Heights (Florida) | 5,062.17 mi (8,146.77 km) |
| San Giovanni in Persiceto to Omaha (Nebraska) | 4,991.78 mi (8,033.49 km) |
| San Giovanni in Persiceto to On Top of the World Designated Place (Florida) | 4,994.98 mi (8,038.64 km) |
| San Giovanni in Persiceto to Onalaska (Wisconsin) | 4,687.81 mi (7,544.30 km) |
| San Giovanni in Persiceto to Oneida (New York) | 4,106.69 mi (6,609.08 km) |
| San Giovanni in Persiceto to Oneonta (New York) | 4,106.06 mi (6,608.07 km) |
| San Giovanni in Persiceto to Ontario (California) | 6,123.62 mi (9,855.01 km) |
| San Giovanni in Persiceto to Ontario (Oregon) | 5,533.17 mi (8,904.77 km) |
| San Giovanni in Persiceto to Opa-locka (Florida) | 5,050.18 mi (8,127.47 km) |
| San Giovanni in Persiceto to Opelika (Alabama) | 4,967.50 mi (7,994.41 km) |
| San Giovanni in Persiceto to Opelousas (Louisiana) | 5,355.54 mi (8,618.91 km) |
| San Giovanni in Persiceto to Orange (California) | 6,144.00 mi (9,887.82 km) |
| San Giovanni in Persiceto to Orange (Texas) | 5,445.87 mi (8,764.28 km) |
| San Giovanni in Persiceto to Orange City (Florida) | 4,957.77 mi (7,978.75 km) |
| San Giovanni in Persiceto to Orangeburg (South Carolina) | 4,732.89 mi (7,616.84 km) |
