| Monthey to Solofra | 544.12 mi (875.68 km) |
| Monthey to Somma Lombardo | 92.71 mi (149.21 km) |
| Monthey to Somma Vesuviana | 527.34 mi (848.67 km) |
| Monthey to Sommacampagna | 196.72 mi (316.59 km) |
| Monthey to Sona | 195.22 mi (314.18 km) |
| Monthey to Sondrio | 139.72 mi (224.86 km) |
| Monthey to Sora | 455.72 mi (733.41 km) |
| Monthey to Sorbolo | 195.07 mi (313.94 km) |
| Monthey to Soresina | 155.11 mi (249.62 km) |
| Monthey to Sorisole | 134.64 mi (216.69 km) |
| Monthey to Sorrento | 537.68 mi (865.32 km) |
| Monthey to Sorso | 385.37 mi (620.20 km) |
| Monthey to Sortino | 752.57 mi (1,211.14 km) |
| Monthey to Soverato Marina | 715.02 mi (1,150.72 km) |
| Monthey to Sovicille | 293.46 mi (472.27 km) |
