| Harpenden to Selargius | 980.70 mi (1,578.28 km) |
| Harpenden to Selvazzano Dentro | 709.15 mi (1,141.26 km) |
| Harpenden to Senago | 609.51 mi (980.91 km) |
| Harpenden to Senigallia | 840.64 mi (1,352.89 km) |
| Harpenden to Seravezza | 728.00 mi (1,171.61 km) |
| Harpenden to Seregno | 608.23 mi (978.85 km) |
| Harpenden to Seriate | 623.47 mi (1,003.38 km) |
| Harpenden to Sermoneta | 947.20 mi (1,524.37 km) |
| Harpenden to Serramanna | 964.77 mi (1,552.65 km) |
| Harpenden to Serravalle Pistoiese | 752.13 mi (1,210.43 km) |
| Harpenden to Sessa Aurunca | 994.51 mi (1,600.50 km) |
| Harpenden to Sesto Calende | 585.79 mi (942.74 km) |
| Harpenden to Sesto Fiorentino | 767.34 mi (1,234.92 km) |
| Harpenden to Sesto San Giovanni | 615.31 mi (990.24 km) |
| Harpenden to Sestri Levante | 687.53 mi (1,106.48 km) |
