| Thetford to Sestu | 989.44 mi (1,592.35 km) |
| Thetford to Settimo Torinese | 595.33 mi (958.08 km) |
| Thetford to Seveso | 601.94 mi (968.73 km) |
| Thetford to Sezze | 949.18 mi (1,527.56 km) |
| Thetford to Siano | 1,036.46 mi (1,668.03 km) |
| Thetford to Siena | 795.55 mi (1,280.31 km) |
| Thetford to Signa | 762.52 mi (1,227.16 km) |
| Thetford to Silea | 699.86 mi (1,126.32 km) |
| Thetford to Silvi Paese | 921.37 mi (1,482.81 km) |
| Thetford to Sinalunga | 812.78 mi (1,308.05 km) |
| Thetford to Siniscola | 920.46 mi (1,481.34 km) |
| Thetford to Sinnai | 991.38 mi (1,595.47 km) |
| Thetford to Siracusa | 1,272.71 mi (2,048.23 km) |
| Thetford to Solaro | 602.02 mi (968.85 km) |
| Thetford to Soliera | 704.18 mi (1,133.26 km) |
