| Somma Vesuviana to Sestu | 302.67 mi (487.10 km) |
| Somma Vesuviana to Settimo Torinese | 447.23 mi (719.75 km) |
| Somma Vesuviana to Seveso | 423.79 mi (682.02 km) |
| Somma Vesuviana to Sezze | 83.40 mi (134.22 km) |
| Somma Vesuviana to Siano | 14.30 mi (23.02 km) |
| Somma Vesuviana to Siena | 232.14 mi (373.60 km) |
| Somma Vesuviana to Signa | 263.58 mi (424.20 km) |
| Somma Vesuviana to Silea | 347.49 mi (559.22 km) |
| Somma Vesuviana to Silvi Paese | 117.07 mi (188.41 km) |
| Somma Vesuviana to Sinalunga | 213.23 mi (343.16 km) |
| Somma Vesuviana to Siniscola | 249.06 mi (400.82 km) |
| Somma Vesuviana to Sinnai | 297.10 mi (478.14 km) |
| Somma Vesuviana to Siracusa | 266.72 mi (429.25 km) |
| Somma Vesuviana to Solaro | 424.01 mi (682.37 km) |
| Somma Vesuviana to Soliera | 320.92 mi (516.47 km) |
