| San Felice sul Panaro to Olympia Heights (Florida) | 5,055.50 mi (8,136.03 km) |
| San Felice sul Panaro to Omaha (Nebraska) | 4,981.15 mi (8,016.39 km) |
| San Felice sul Panaro to On Top of the World Designated Place (Florida) | 4,987.51 mi (8,026.61 km) |
| San Felice sul Panaro to Onalaska (Wisconsin) | 4,677.27 mi (7,527.34 km) |
| San Felice sul Panaro to Oneida (New York) | 4,097.60 mi (6,594.45 km) |
| San Felice sul Panaro to Oneonta (New York) | 4,097.13 mi (6,593.69 km) |
| San Felice sul Panaro to Ontario (California) | 6,111.76 mi (9,835.93 km) |
| San Felice sul Panaro to Ontario (Oregon) | 5,520.71 mi (8,884.72 km) |
| San Felice sul Panaro to Opa-locka (Florida) | 5,043.49 mi (8,116.71 km) |
| San Felice sul Panaro to Opelika (Alabama) | 4,959.10 mi (7,980.90 km) |
| San Felice sul Panaro to Opelousas (Louisiana) | 5,346.67 mi (8,604.64 km) |
| San Felice sul Panaro to Orange (California) | 6,132.15 mi (9,868.74 km) |
| San Felice sul Panaro to Orange (Texas) | 5,436.86 mi (8,749.79 km) |
| San Felice sul Panaro to Orange City (Florida) | 4,950.45 mi (7,966.97 km) |
| San Felice sul Panaro to Orangeburg (South Carolina) | 4,724.88 mi (7,603.96 km) |
