| Thornton Heath to Sestu | 946.24 mi (1,522.83 km) |
| Thornton Heath to Settimo Torinese | 563.87 mi (907.45 km) |
| Thornton Heath to Seveso | 579.91 mi (933.28 km) |
| Thornton Heath to Sezze | 925.28 mi (1,489.09 km) |
| Thornton Heath to Siano | 1,015.66 mi (1,634.54 km) |
| Thornton Heath to Siena | 771.90 mi (1,242.26 km) |
| Thornton Heath to Signa | 739.89 mi (1,190.73 km) |
| Thornton Heath to Silea | 691.22 mi (1,112.42 km) |
| Thornton Heath to Silvi Paese | 904.68 mi (1,455.95 km) |
| Thornton Heath to Sinalunga | 790.27 mi (1,271.81 km) |
| Thornton Heath to Siniscola | 882.04 mi (1,419.51 km) |
| Thornton Heath to Sinnai | 948.56 mi (1,526.56 km) |
| Thornton Heath to Siracusa | 1,244.18 mi (2,002.31 km) |
| Thornton Heath to Solaro | 579.57 mi (932.73 km) |
| Thornton Heath to Soliera | 685.24 mi (1,102.78 km) |
