| Thornaby on Tees to Sinop | 1,857.76 mi (2,989.77 km) |
| Thornaby on Tees to Siran | 2,097.11 mi (3,374.97 km) |
| Thornaby on Tees to Sirnak | 2,354.01 mi (3,788.41 km) |
| Thornaby on Tees to Sirvan | 2,310.98 mi (3,719.16 km) |
| Thornaby on Tees to Sivas | 2,035.16 mi (3,275.28 km) |
| Thornaby on Tees to Sivasli | 1,820.40 mi (2,929.65 km) |
| Thornaby on Tees to Siverek | 2,220.27 mi (3,573.18 km) |
| Thornaby on Tees to Sivrice | 2,186.40 mi (3,518.68 km) |
| Thornaby on Tees to Sivrihisar | 1,840.35 mi (2,961.76 km) |
| Thornaby on Tees to Sogut | 1,761.76 mi (2,835.29 km) |
| Thornaby on Tees to Sogutlu | 1,730.34 mi (2,784.72 km) |
| Thornaby on Tees to Soke | 1,777.28 mi (2,860.25 km) |
| Thornaby on Tees to Solhan | 2,229.77 mi (3,588.47 km) |
| Thornaby on Tees to Soma | 1,709.35 mi (2,750.93 km) |
| Thornaby on Tees to Sorgun | 1,961.48 mi (3,156.70 km) |
