| Mountain Ash to Selargius | 1,048.73 mi (1,687.76 km) |
| Mountain Ash to Selvazzano Dentro | 816.52 mi (1,314.06 km) |
| Mountain Ash to Senago | 708.34 mi (1,139.96 km) |
| Mountain Ash to Senigallia | 944.52 mi (1,520.06 km) |
| Mountain Ash to Seravezza | 822.42 mi (1,323.56 km) |
| Mountain Ash to Seregno | 707.77 mi (1,139.04 km) |
| Mountain Ash to Seriate | 725.36 mi (1,167.35 km) |
| Mountain Ash to Sermoneta | 1,041.17 mi (1,675.60 km) |
| Mountain Ash to Serramanna | 1,032.15 mi (1,661.08 km) |
| Mountain Ash to Serravalle Pistoiese | 848.52 mi (1,365.56 km) |
| Mountain Ash to Sessa Aurunca | 1,090.55 mi (1,755.08 km) |
| Mountain Ash to Sesto Calende | 683.34 mi (1,099.72 km) |
| Mountain Ash to Sesto Fiorentino | 864.84 mi (1,391.82 km) |
| Mountain Ash to Sesto San Giovanni | 714.26 mi (1,149.48 km) |
| Mountain Ash to Sestri Levante | 779.68 mi (1,254.78 km) |
