| Somerset to Sinop | 5,238.84 mi (8,431.10 km) |
| Somerset to Siran | 5,476.20 mi (8,813.10 km) |
| Somerset to Sirnak | 5,733.39 mi (9,227.00 km) |
| Somerset to Sirvan | 5,689.90 mi (9,157.00 km) |
| Somerset to Sivas | 5,417.46 mi (8,718.56 km) |
| Somerset to Sivasli | 5,183.83 mi (8,342.57 km) |
| Somerset to Siverek | 5,602.70 mi (9,016.68 km) |
| Somerset to Sivrice | 5,568.35 mi (8,961.39 km) |
| Somerset to Sivrihisar | 5,215.95 mi (8,394.27 km) |
| Somerset to Sogut | 5,135.67 mi (8,265.06 km) |
| Somerset to Sogutlu | 5,108.51 mi (8,221.35 km) |
| Somerset to Soke | 5,121.29 mi (8,241.93 km) |
| Somerset to Solhan | 5,608.32 mi (9,025.72 km) |
| Somerset to Soma | 5,066.82 mi (8,154.25 km) |
| Somerset to Sorgun | 5,343.82 mi (8,600.05 km) |
