| Bois-Guillaume to Settimo Torinese | 431.88 mi (695.04 km) |
| Bois-Guillaume to Seveso | 457.51 mi (736.29 km) |
| Bois-Guillaume to Sezze | 797.09 mi (1,282.78 km) |
| Bois-Guillaume to Siano | 889.95 mi (1,432.24 km) |
| Bois-Guillaume to Siena | 645.11 mi (1,038.20 km) |
| Bois-Guillaume to Signa | 614.45 mi (988.87 km) |
| Bois-Guillaume to Silea | 583.21 mi (938.58 km) |
| Bois-Guillaume to Silvi Paese | 784.06 mi (1,261.83 km) |
| Bois-Guillaume to Sinalunga | 664.45 mi (1,069.33 km) |
| Bois-Guillaume to Siniscola | 742.73 mi (1,195.31 km) |
| Bois-Guillaume to Sinnai | 806.89 mi (1,298.56 km) |
| Bois-Guillaume to Siracusa | 1,110.72 mi (1,787.53 km) |
| Bois-Guillaume to Solaro | 456.70 mi (734.99 km) |
| Bois-Guillaume to Soliera | 564.55 mi (908.55 km) |
| Bois-Guillaume to Solofra | 893.99 mi (1,438.74 km) |
