| Sidmouth to Sinop | 1,901.42 mi (3,060.04 km) |
| Sidmouth to Siran | 2,144.12 mi (3,450.62 km) |
| Sidmouth to Sirnak | 2,397.27 mi (3,858.04 km) |
| Sidmouth to Sirvan | 2,355.90 mi (3,791.45 km) |
| Sidmouth to Sivas | 2,069.19 mi (3,330.04 km) |
| Sidmouth to Sivasli | 1,805.63 mi (2,905.88 km) |
| Sidmouth to Siverek | 2,250.73 mi (3,622.20 km) |
| Sidmouth to Sivrice | 2,221.67 mi (3,575.42 km) |
| Sidmouth to Sivrihisar | 1,844.05 mi (2,967.70 km) |
| Sidmouth to Sogut | 1,762.68 mi (2,836.75 km) |
| Sidmouth to Sogutlu | 1,740.67 mi (2,801.34 km) |
| Sidmouth to Soke | 1,742.73 mi (2,804.65 km) |
| Sidmouth to Solhan | 2,276.53 mi (3,663.73 km) |
| Sidmouth to Soma | 1,687.88 mi (2,716.38 km) |
| Sidmouth to Sorgun | 1,987.18 mi (3,198.05 km) |
