| Ruislip to Sestu | 963.92 mi (1,551.28 km) |
| Ruislip to Settimo Torinese | 582.27 mi (937.08 km) |
| Ruislip to Seveso | 598.41 mi (963.04 km) |
| Ruislip to Sezze | 943.78 mi (1,518.86 km) |
| Ruislip to Siano | 1,034.16 mi (1,664.32 km) |
| Ruislip to Siena | 790.40 mi (1,272.03 km) |
| Ruislip to Signa | 758.39 mi (1,220.51 km) |
| Ruislip to Silea | 709.40 mi (1,141.66 km) |
| Ruislip to Silvi Paese | 923.14 mi (1,485.64 km) |
| Ruislip to Sinalunga | 808.77 mi (1,301.59 km) |
| Ruislip to Siniscola | 900.08 mi (1,448.54 km) |
| Ruislip to Sinnai | 966.27 mi (1,555.06 km) |
| Ruislip to Siracusa | 1,262.59 mi (2,031.94 km) |
| Ruislip to Solaro | 598.07 mi (962.50 km) |
| Ruislip to Soliera | 703.71 mi (1,132.51 km) |
