| Sierre to Solofra | 525.71 mi (846.05 km) |
| Sierre to Somma Lombardo | 70.37 mi (113.25 km) |
| Sierre to Somma Vesuviana | 509.51 mi (819.98 km) |
| Sierre to Sommacampagna | 171.29 mi (275.66 km) |
| Sierre to Sona | 169.67 mi (273.06 km) |
| Sierre to Sondrio | 112.03 mi (180.30 km) |
| Sierre to Sora | 437.55 mi (704.17 km) |
| Sierre to Sorbolo | 173.10 mi (278.57 km) |
| Sierre to Soresina | 132.03 mi (212.49 km) |
| Sierre to Sorisole | 109.02 mi (175.46 km) |
| Sierre to Sorrento | 520.43 mi (837.54 km) |
| Sierre to Sorso | 383.70 mi (617.50 km) |
| Sierre to Sortino | 739.32 mi (1,189.82 km) |
| Sierre to Soverato Marina | 697.63 mi (1,122.73 km) |
| Sierre to Sovicille | 276.27 mi (444.61 km) |
