| Trowbridge to Sestu | 993.12 mi (1,598.27 km) |
| Trowbridge to Settimo Torinese | 626.30 mi (1,007.93 km) |
| Trowbridge to Seveso | 649.82 mi (1,045.78 km) |
| Trowbridge to Sezze | 991.28 mi (1,595.30 km) |
| Trowbridge to Siano | 1,083.73 mi (1,744.09 km) |
| Trowbridge to Siena | 838.97 mi (1,350.18 km) |
| Trowbridge to Signa | 807.96 mi (1,300.29 km) |
| Trowbridge to Silea | 769.00 mi (1,237.59 km) |
| Trowbridge to Silvi Paese | 976.25 mi (1,571.12 km) |
| Trowbridge to Sinalunga | 858.10 mi (1,380.99 km) |
| Trowbridge to Siniscola | 934.70 mi (1,504.26 km) |
| Trowbridge to Sinnai | 995.87 mi (1,602.70 km) |
| Trowbridge to Siracusa | 1,304.96 mi (2,100.13 km) |
| Trowbridge to Solaro | 649.17 mi (1,044.74 km) |
| Trowbridge to Soliera | 756.46 mi (1,217.40 km) |
