| Pontypridd to Sestu | 1,038.90 mi (1,671.94 km) |
| Pontypridd to Settimo Torinese | 676.75 mi (1,089.12 km) |
| Pontypridd to Seveso | 701.57 mi (1,129.06 km) |
| Pontypridd to Sezze | 1,042.13 mi (1,677.14 km) |
| Pontypridd to Siano | 1,134.94 mi (1,826.51 km) |
| Pontypridd to Siena | 890.11 mi (1,432.50 km) |
| Pontypridd to Signa | 859.31 mi (1,382.93 km) |
| Pontypridd to Silea | 821.51 mi (1,322.09 km) |
| Pontypridd to Silvi Paese | 1,028.09 mi (1,654.54 km) |
| Pontypridd to Sinalunga | 909.38 mi (1,463.51 km) |
| Pontypridd to Siniscola | 982.31 mi (1,580.87 km) |
| Pontypridd to Sinnai | 1,041.78 mi (1,676.59 km) |
| Pontypridd to Siracusa | 1,354.47 mi (2,179.81 km) |
| Pontypridd to Solaro | 700.88 mi (1,127.95 km) |
| Pontypridd to Soliera | 808.33 mi (1,300.87 km) |
