| Naples to Somma Lombardo | 435.99 mi (701.66 km) |
| Naples to Somma Vesuviana | 10.14 mi (16.31 km) |
| Naples to Sommacampagna | 359.03 mi (577.80 km) |
| Naples to Sona | 361.43 mi (581.67 km) |
| Naples to Sondrio | 428.94 mi (690.32 km) |
| Naples to Sora | 69.33 mi (111.58 km) |
| Naples to Sorbolo | 337.51 mi (543.16 km) |
| Naples to Soresina | 379.15 mi (610.18 km) |
| Naples to Sorisole | 409.96 mi (659.76 km) |
| Naples to Sorrento | 15.60 mi (25.11 km) |
| Naples to Sorso | 296.59 mi (477.32 km) |
| Naples to Sortino | 256.80 mi (413.28 km) |
| Naples to Soverato Marina | 192.32 mi (309.50 km) |
| Naples to Sovicille | 229.32 mi (369.06 km) |
| Naples to Spello | 169.59 mi (272.93 km) |
