| Monthey to Siran | 1,660.86 mi (2,672.90 km) |
| Monthey to Sirnak | 1,905.19 mi (3,066.10 km) |
| Monthey to Sirvan | 1,866.24 mi (3,003.42 km) |
| Monthey to Sivas | 1,573.60 mi (2,532.46 km) |
| Monthey to Sivasli | 1,272.59 mi (2,048.04 km) |
| Monthey to Siverek | 1,748.19 mi (2,813.44 km) |
| Monthey to Sivrice | 1,724.36 mi (2,775.10 km) |
| Monthey to Sivrihisar | 1,324.53 mi (2,131.63 km) |
| Monthey to Sogut | 1,242.45 mi (1,999.53 km) |
| Monthey to Sogutlu | 1,229.32 mi (1,978.40 km) |
| Monthey to Soke | 1,198.45 mi (1,928.72 km) |
| Monthey to Solhan | 1,790.29 mi (2,881.19 km) |
| Monthey to Soma | 1,152.10 mi (1,854.13 km) |
| Monthey to Sorgun | 1,484.89 mi (2,389.71 km) |
| Monthey to Suhut | 1,310.43 mi (2,108.93 km) |
