| Bois-Guillaume to Somma Lombardo | 439.31 mi (707.00 km) |
| Bois-Guillaume to Somma Vesuviana | 877.23 mi (1,411.77 km) |
| Bois-Guillaume to Sommacampagna | 534.07 mi (859.51 km) |
| Bois-Guillaume to Sona | 532.08 mi (856.31 km) |
| Bois-Guillaume to Sondrio | 465.21 mi (748.69 km) |
| Bois-Guillaume to Sora | 805.61 mi (1,296.51 km) |
| Bois-Guillaume to Sorbolo | 541.73 mi (871.83 km) |
| Bois-Guillaume to Soresina | 500.16 mi (804.93 km) |
| Bois-Guillaume to Sorisole | 473.56 mi (762.13 km) |
| Bois-Guillaume to Sorrento | 887.46 mi (1,428.22 km) |
| Bois-Guillaume to Sorso | 700.01 mi (1,126.56 km) |
| Bois-Guillaume to Sortino | 1,097.18 mi (1,765.73 km) |
| Bois-Guillaume to Soverato Marina | 1,064.79 mi (1,713.61 km) |
| Bois-Guillaume to Sovicille | 643.33 mi (1,035.33 km) |
| Bois-Guillaume to Spello | 709.58 mi (1,141.96 km) |
