| Mont-Saint-Martin to Settimo Torinese | 318.38 mi (512.39 km) |
| Mont-Saint-Martin to Seveso | 311.36 mi (501.08 km) |
| Mont-Saint-Martin to Sezze | 657.39 mi (1,057.97 km) |
| Mont-Saint-Martin to Siano | 742.57 mi (1,195.05 km) |
| Mont-Saint-Martin to Siena | 504.39 mi (811.74 km) |
| Mont-Saint-Martin to Signa | 470.78 mi (757.65 km) |
| Mont-Saint-Martin to Silea | 405.06 mi (651.88 km) |
| Mont-Saint-Martin to Silvi Paese | 626.24 mi (1,007.83 km) |
| Mont-Saint-Martin to Sinalunga | 520.64 mi (837.90 km) |
| Mont-Saint-Martin to Siniscola | 648.10 mi (1,043.02 km) |
| Mont-Saint-Martin to Sinnai | 727.07 mi (1,170.10 km) |
| Mont-Saint-Martin to Siracusa | 983.61 mi (1,582.97 km) |
| Mont-Saint-Martin to Solaro | 311.84 mi (501.86 km) |
| Mont-Saint-Martin to Soliera | 410.37 mi (660.43 km) |
| Mont-Saint-Martin to Solofra | 745.20 mi (1,199.28 km) |
