| Hemel Hempstead to Sesena | 819.48 mi (1,318.82 km) |
| Hemel Hempstead to Sestao | 595.05 mi (957.65 km) |
| Hemel Hempstead to Sevilla | 1,038.22 mi (1,670.86 km) |
| Hemel Hempstead to Sevilla La Nueva | 806.03 mi (1,297.18 km) |
| Hemel Hempstead to Silla | 856.13 mi (1,377.80 km) |
| Hemel Hempstead to Silleda | 722.90 mi (1,163.39 km) |
| Hemel Hempstead to Sitges | 734.68 mi (1,182.35 km) |
| Hemel Hempstead to Socuellamos | 868.06 mi (1,397.01 km) |
| Hemel Hempstead to Soller | 841.91 mi (1,354.92 km) |
| Hemel Hempstead to Solsona | 680.66 mi (1,095.41 km) |
| Hemel Hempstead to Son Servera | 858.05 mi (1,380.89 km) |
| Hemel Hempstead to Sonseca | 849.25 mi (1,366.74 km) |
| Hemel Hempstead to Sopelana | 590.02 mi (949.54 km) |
| Hemel Hempstead to Soria | 696.33 mi (1,120.64 km) |
| Hemel Hempstead to Suances | 598.34 mi (962.94 km) |
