| Llantrisant to Selargius | 1,041.24 mi (1,675.72 km) |
| Llantrisant to Selvazzano Dentro | 812.15 mi (1,307.02 km) |
| Llantrisant to Senago | 703.19 mi (1,131.67 km) |
| Llantrisant to Senigallia | 939.71 mi (1,512.32 km) |
| Llantrisant to Seravezza | 816.81 mi (1,314.53 km) |
| Llantrisant to Seregno | 702.68 mi (1,130.86 km) |
| Llantrisant to Seriate | 720.48 mi (1,159.50 km) |
| Llantrisant to Sermoneta | 1,035.41 mi (1,666.33 km) |
| Llantrisant to Serramanna | 1,024.64 mi (1,648.99 km) |
| Llantrisant to Serravalle Pistoiese | 843.06 mi (1,356.77 km) |
| Llantrisant to Sessa Aurunca | 1,084.96 mi (1,746.07 km) |
| Llantrisant to Sesto Calende | 678.09 mi (1,091.28 km) |
| Llantrisant to Sesto Fiorentino | 859.47 mi (1,383.18 km) |
| Llantrisant to Sesto San Giovanni | 709.11 mi (1,141.20 km) |
| Llantrisant to Sestri Levante | 773.91 mi (1,245.49 km) |
