| San Pancrazio Salentino to Olympia Heights (Florida) | 5,486.19 mi (8,829.17 km) |
| San Pancrazio Salentino to Omaha (Nebraska) | 5,438.02 mi (8,751.65 km) |
| San Pancrazio Salentino to On Top of the World Designated Place (Florida) | 5,427.39 mi (8,734.53 km) |
| San Pancrazio Salentino to Onalaska (Wisconsin) | 5,134.22 mi (8,262.73 km) |
| San Pancrazio Salentino to Oneida (New York) | 4,550.79 mi (7,323.79 km) |
| San Pancrazio Salentino to Oneonta (New York) | 4,549.39 mi (7,321.53 km) |
| San Pancrazio Salentino to Ontario (California) | 6,561.67 mi (10,559.99 km) |
| San Pancrazio Salentino to Ontario (Oregon) | 5,961.75 mi (9,594.50 km) |
| San Pancrazio Salentino to Opa-locka (Florida) | 5,474.41 mi (8,810.21 km) |
| San Pancrazio Salentino to Opelika (Alabama) | 5,407.47 mi (8,702.48 km) |
| San Pancrazio Salentino to Opelousas (Louisiana) | 5,798.33 mi (9,331.51 km) |
| San Pancrazio Salentino to Orange (California) | 6,582.03 mi (10,592.75 km) |
| San Pancrazio Salentino to Orange (Texas) | 5,889.39 mi (9,478.05 km) |
| San Pancrazio Salentino to Orange City (Florida) | 5,388.72 mi (8,672.31 km) |
| San Pancrazio Salentino to Orangeburg (South Carolina) | 5,170.06 mi (8,320.40 km) |
