| Frauenfeld to Siran | 1,577.42 mi (2,538.61 km) |
| Frauenfeld to Sirnak | 1,826.07 mi (2,938.77 km) |
| Frauenfeld to Sirvan | 1,785.98 mi (2,874.26 km) |
| Frauenfeld to Sivas | 1,495.29 mi (2,406.44 km) |
| Frauenfeld to Sivasli | 1,216.89 mi (1,958.39 km) |
| Frauenfeld to Siverek | 1,673.64 mi (2,693.46 km) |
| Frauenfeld to Sivrice | 1,647.23 mi (2,650.95 km) |
| Frauenfeld to Sivrihisar | 1,258.79 mi (2,025.83 km) |
| Frauenfeld to Sogut | 1,177.01 mi (1,894.22 km) |
| Frauenfeld to Sogutlu | 1,158.27 mi (1,864.06 km) |
| Frauenfeld to Soke | 1,154.14 mi (1,857.41 km) |
| Frauenfeld to Solhan | 1,708.42 mi (2,749.43 km) |
| Frauenfeld to Soma | 1,098.78 mi (1,768.32 km) |
| Frauenfeld to Sorgun | 1,409.61 mi (2,268.54 km) |
| Frauenfeld to Suhut | 1,252.01 mi (2,014.92 km) |
