| Pen-y-Bont ar Ogwr to Selargius | 1,045.11 mi (1,681.93 km) |
| Pen-y-Bont ar Ogwr to Selvazzano Dentro | 819.02 mi (1,318.08 km) |
| Pen-y-Bont ar Ogwr to Senago | 709.49 mi (1,141.82 km) |
| Pen-y-Bont ar Ogwr to Senigallia | 946.27 mi (1,522.87 km) |
| Pen-y-Bont ar Ogwr to Seravezza | 822.72 mi (1,324.03 km) |
| Pen-y-Bont ar Ogwr to Seregno | 709.04 mi (1,141.09 km) |
| Pen-y-Bont ar Ogwr to Seriate | 726.99 mi (1,169.98 km) |
| Pen-y-Bont ar Ogwr to Sermoneta | 1,041.18 mi (1,675.62 km) |
| Pen-y-Bont ar Ogwr to Serramanna | 1,028.46 mi (1,655.14 km) |
| Pen-y-Bont ar Ogwr to Serravalle Pistoiese | 849.09 mi (1,366.48 km) |
| Pen-y-Bont ar Ogwr to Sessa Aurunca | 1,090.87 mi (1,755.58 km) |
| Pen-y-Bont ar Ogwr to Sesto Calende | 684.32 mi (1,101.31 km) |
| Pen-y-Bont ar Ogwr to Sesto Fiorentino | 865.57 mi (1,393.01 km) |
| Pen-y-Bont ar Ogwr to Sesto San Giovanni | 715.42 mi (1,151.36 km) |
| Pen-y-Bont ar Ogwr to Sestri Levante | 779.68 mi (1,254.78 km) |
