| Somma Lombardo to Solofra | 455.86 mi (733.63 km) |
| Somma Lombardo to Somma Vesuviana | 439.95 mi (708.02 km) |
| Somma Lombardo to Sommacampagna | 105.87 mi (170.37 km) |
| Somma Lombardo to Sona | 104.64 mi (168.40 km) |
| Somma Lombardo to Sondrio | 65.51 mi (105.42 km) |
| Somma Lombardo to Sora | 367.86 mi (592.02 km) |
| Somma Lombardo to Sorbolo | 102.83 mi (165.49 km) |
| Somma Lombardo to Soresina | 62.39 mi (100.41 km) |
| Somma Lombardo to Sorisole | 46.29 mi (74.50 km) |
| Somma Lombardo to Sorrento | 451.18 mi (726.11 km) |
| Somma Lombardo to Sorso | 337.58 mi (543.28 km) |
| Somma Lombardo to Sortino | 673.21 mi (1,083.42 km) |
| Somma Lombardo to Soverato Marina | 628.20 mi (1,010.99 km) |
| Somma Lombardo to Sovicille | 207.56 mi (334.04 km) |
| Somma Lombardo to Spello | 270.48 mi (435.29 km) |
