| Hemel Hempstead to Sestu | 975.09 mi (1,569.26 km) |
| Hemel Hempstead to Settimo Torinese | 592.25 mi (953.14 km) |
| Hemel Hempstead to Seveso | 607.42 mi (977.54 km) |
| Hemel Hempstead to Sezze | 953.16 mi (1,533.96 km) |
| Hemel Hempstead to Siano | 1,043.24 mi (1,678.93 km) |
| Hemel Hempstead to Siena | 799.70 mi (1,286.99 km) |
| Hemel Hempstead to Signa | 767.56 mi (1,235.27 km) |
| Hemel Hempstead to Silea | 716.94 mi (1,153.80 km) |
| Hemel Hempstead to Silvi Paese | 931.72 mi (1,499.46 km) |
| Hemel Hempstead to Sinalunga | 817.96 mi (1,316.37 km) |
| Hemel Hempstead to Siniscola | 910.85 mi (1,465.86 km) |
| Hemel Hempstead to Sinnai | 977.41 mi (1,572.99 km) |
| Hemel Hempstead to Siracusa | 1,272.52 mi (2,047.92 km) |
| Hemel Hempstead to Solaro | 607.12 mi (977.07 km) |
| Hemel Hempstead to Soliera | 712.45 mi (1,146.58 km) |
