| Castanet-Tolosan to Settimo Torinese | 329.29 mi (529.93 km) |
| Castanet-Tolosan to Seveso | 403.47 mi (649.33 km) |
| Castanet-Tolosan to Sezze | 604.93 mi (973.53 km) |
| Castanet-Tolosan to Siano | 700.54 mi (1,127.41 km) |
| Castanet-Tolosan to Siena | 493.41 mi (794.06 km) |
| Castanet-Tolosan to Signa | 480.13 mi (772.69 km) |
| Castanet-Tolosan to Silea | 551.07 mi (886.86 km) |
| Castanet-Tolosan to Silvi Paese | 640.16 mi (1,030.23 km) |
| Castanet-Tolosan to Sinalunga | 514.20 mi (827.52 km) |
| Castanet-Tolosan to Siniscola | 466.88 mi (751.37 km) |
| Castanet-Tolosan to Sinnai | 493.77 mi (794.65 km) |
| Castanet-Tolosan to Siracusa | 850.69 mi (1,369.05 km) |
| Castanet-Tolosan to Solaro | 400.40 mi (644.38 km) |
| Castanet-Tolosan to Soliera | 474.79 mi (764.10 km) |
| Castanet-Tolosan to Solofra | 707.48 mi (1,138.58 km) |
