| San Severino Marche to Settimo Torinese | 298.55 mi (480.47 km) |
| San Severino Marche to Seveso | 259.85 mi (418.18 km) |
| San Severino Marche to Sezze | 119.59 mi (192.46 km) |
| San Severino Marche to Siano | 184.85 mi (297.49 km) |
| San Severino Marche to Siena | 93.05 mi (149.75 km) |
| San Severino Marche to Signa | 110.91 mi (178.49 km) |
| San Severino Marche to Silea | 173.14 mi (278.64 km) |
| San Severino Marche to Silvi Paese | 66.80 mi (107.51 km) |
| San Severino Marche to Sinalunga | 72.70 mi (116.99 km) |
| San Severino Marche to Siniscola | 256.24 mi (412.38 km) |
| San Severino Marche to Sinnai | 340.77 mi (548.42 km) |
| San Severino Marche to Siracusa | 439.90 mi (707.96 km) |
| San Severino Marche to Solaro | 260.67 mi (419.50 km) |
| San Severino Marche to Soliera | 153.01 mi (246.24 km) |
| San Severino Marche to Solofra | 186.45 mi (300.06 km) |
