| Sondrio to Solofra | 445.03 mi (716.21 km) |
| Sondrio to Somma Lombardo | 65.51 mi (105.42 km) |
| Sondrio to Somma Vesuviana | 431.46 mi (694.37 km) |
| Sondrio to Sommacampagna | 71.12 mi (114.45 km) |
| Sondrio to Sona | 68.86 mi (110.82 km) |
| Sondrio to Sora | 359.63 mi (578.77 km) |
| Sondrio to Sorbolo | 95.63 mi (153.91 km) |
| Sondrio to Soresina | 61.03 mi (98.21 km) |
| Sondrio to Sorisole | 31.58 mi (50.82 km) |
| Sondrio to Sorrento | 444.50 mi (715.35 km) |
| Sondrio to Sorso | 376.73 mi (606.29 km) |
| Sondrio to Sortino | 676.35 mi (1,088.48 km) |
| Sondrio to Soverato Marina | 618.86 mi (995.96 km) |
| Sondrio to Sovicille | 210.35 mi (338.53 km) |
| Sondrio to Spello | 259.42 mi (417.49 km) |
