| Hertford to Selargius | 973.40 mi (1,566.53 km) |
| Hertford to Selvazzano Dentro | 698.63 mi (1,124.34 km) |
| Hertford to Senago | 599.77 mi (965.24 km) |
| Hertford to Senigallia | 830.36 mi (1,336.34 km) |
| Hertford to Seravezza | 718.56 mi (1,156.42 km) |
| Hertford to Seregno | 598.43 mi (963.08 km) |
| Hertford to Seriate | 613.46 mi (987.26 km) |
| Hertford to Sermoneta | 937.69 mi (1,509.07 km) |
| Hertford to Serramanna | 957.54 mi (1,541.01 km) |
| Hertford to Serravalle Pistoiese | 742.50 mi (1,194.94 km) |
| Hertford to Sessa Aurunca | 984.81 mi (1,584.90 km) |
| Hertford to Sesto Calende | 576.19 mi (927.28 km) |
| Hertford to Sesto Fiorentino | 757.62 mi (1,219.27 km) |
| Hertford to Sesto San Giovanni | 605.55 mi (974.54 km) |
| Hertford to Sestri Levante | 678.32 mi (1,091.65 km) |
