| Saint-Sebastien-sur-Loire to Olympia Heights (Florida) | 4,428.06 mi (7,126.27 km) |
| Saint-Sebastien-sur-Loire to Omaha (Nebraska) | 4,399.60 mi (7,080.46 km) |
| Saint-Sebastien-sur-Loire to On Top of the World Designated Place (Florida) | 4,361.72 mi (7,019.51 km) |
| Saint-Sebastien-sur-Loire to Onalaska (Wisconsin) | 4,094.02 mi (6,588.70 km) |
| Saint-Sebastien-sur-Loire to Oneida (New York) | 3,486.41 mi (5,610.84 km) |
| Saint-Sebastien-sur-Loire to Oneonta (New York) | 3,483.72 mi (5,606.50 km) |
| Saint-Sebastien-sur-Loire to Ontario (California) | 5,569.96 mi (8,963.99 km) |
| Saint-Sebastien-sur-Loire to Ontario (Oregon) | 5,012.59 mi (8,066.99 km) |
| Saint-Sebastien-sur-Loire to Opa-locka (Florida) | 4,416.05 mi (7,106.95 km) |
| Saint-Sebastien-sur-Loire to Opelika (Alabama) | 4,339.31 mi (6,983.44 km) |
| Saint-Sebastien-sur-Loire to Opelousas (Louisiana) | 4,731.63 mi (7,614.83 km) |
| Saint-Sebastien-sur-Loire to Orange (California) | 5,590.39 mi (8,996.86 km) |
| Saint-Sebastien-sur-Loire to Orange (Texas) | 4,823.52 mi (7,762.70 km) |
| Saint-Sebastien-sur-Loire to Orange City (Florida) | 4,324.11 mi (6,958.97 km) |
| Saint-Sebastien-sur-Loire to Orangeburg (South Carolina) | 4,102.04 mi (6,601.60 km) |
