| Saint-Sebastien-sur-Loire to Somma Lombardo | 496.58 mi (799.16 km) |
| Saint-Sebastien-sur-Loire to Somma Vesuviana | 902.16 mi (1,451.89 km) |
| Saint-Sebastien-sur-Loire to Sommacampagna | 601.96 mi (968.76 km) |
| Saint-Sebastien-sur-Loire to Sona | 600.54 mi (966.47 km) |
| Saint-Sebastien-sur-Loire to Sondrio | 543.21 mi (874.21 km) |
| Saint-Sebastien-sur-Loire to Sora | 834.57 mi (1,343.11 km) |
| Saint-Sebastien-sur-Loire to Sorbolo | 595.36 mi (958.14 km) |
| Saint-Sebastien-sur-Loire to Soresina | 558.17 mi (898.28 km) |
| Saint-Sebastien-sur-Loire to Sorisole | 540.08 mi (869.17 km) |
| Saint-Sebastien-sur-Loire to Sorrento | 909.09 mi (1,463.04 km) |
| Saint-Sebastien-sur-Loire to Sorso | 667.63 mi (1,074.44 km) |
| Saint-Sebastien-sur-Loire to Sortino | 1,090.54 mi (1,755.06 km) |
| Saint-Sebastien-sur-Loire to Soverato Marina | 1,082.45 mi (1,742.03 km) |
| Saint-Sebastien-sur-Loire to Sovicille | 675.21 mi (1,086.64 km) |
| Saint-Sebastien-sur-Loire to Spello | 748.84 mi (1,205.14 km) |
