| Penarth to Sinop | 1,902.05 mi (3,061.05 km) |
| Penarth to Siran | 2,144.50 mi (3,451.24 km) |
| Penarth to Sirnak | 2,398.68 mi (3,860.31 km) |
| Penarth to Sirvan | 2,356.95 mi (3,793.14 km) |
| Penarth to Sivas | 2,071.88 mi (3,334.38 km) |
| Penarth to Sivasli | 1,816.84 mi (2,923.92 km) |
| Penarth to Siverek | 2,254.34 mi (3,628.01 km) |
| Penarth to Sivrice | 2,224.34 mi (3,579.74 km) |
| Penarth to Sivrihisar | 1,851.95 mi (2,980.42 km) |
| Penarth to Sogut | 1,770.93 mi (2,850.04 km) |
| Penarth to Sogutlu | 1,747.15 mi (2,811.77 km) |
| Penarth to Soke | 1,757.40 mi (2,828.26 km) |
| Penarth to Solhan | 2,277.14 mi (3,664.71 km) |
| Penarth to Soma | 1,700.06 mi (2,735.99 km) |
| Penarth to Sorgun | 1,991.28 mi (3,204.66 km) |
