| Hemel Hempstead to Sinop | 1,789.27 mi (2,879.55 km) |
| Hemel Hempstead to Siran | 2,031.46 mi (3,269.32 km) |
| Hemel Hempstead to Sirnak | 2,286.26 mi (3,679.38 km) |
| Hemel Hempstead to Sirvan | 2,244.29 mi (3,611.83 km) |
| Hemel Hempstead to Sivas | 1,960.54 mi (3,155.18 km) |
| Hemel Hempstead to Sivasli | 1,713.94 mi (2,758.32 km) |
| Hemel Hempstead to Siverek | 2,143.63 mi (3,449.85 km) |
| Hemel Hempstead to Sivrice | 2,112.92 mi (3,400.42 km) |
| Hemel Hempstead to Sivrihisar | 1,745.41 mi (2,808.97 km) |
| Hemel Hempstead to Sogut | 1,664.83 mi (2,679.28 km) |
| Hemel Hempstead to Sogutlu | 1,639.30 mi (2,638.20 km) |
| Hemel Hempstead to Soke | 1,658.92 mi (2,669.77 km) |
| Hemel Hempstead to Solhan | 2,164.20 mi (3,482.95 km) |
| Hemel Hempstead to Soma | 1,598.48 mi (2,572.50 km) |
| Hemel Hempstead to Sorgun | 1,881.12 mi (3,027.37 km) |
