| Castanet-Tolosan to Somma Lombardo | 384.48 mi (618.77 km) |
| Castanet-Tolosan to Somma Vesuviana | 686.24 mi (1,104.39 km) |
| Castanet-Tolosan to Sommacampagna | 478.91 mi (770.73 km) |
| Castanet-Tolosan to Sona | 478.62 mi (770.26 km) |
| Castanet-Tolosan to Sondrio | 448.97 mi (722.55 km) |
| Castanet-Tolosan to Sora | 627.99 mi (1,010.65 km) |
| Castanet-Tolosan to Sorbolo | 452.67 mi (728.51 km) |
| Castanet-Tolosan to Soresina | 430.16 mi (692.27 km) |
| Castanet-Tolosan to Sorisole | 429.30 mi (690.89 km) |
| Castanet-Tolosan to Sorrento | 689.02 mi (1,108.87 km) |
| Castanet-Tolosan to Sorso | 408.12 mi (656.80 km) |
| Castanet-Tolosan to Sortino | 835.39 mi (1,344.44 km) |
| Castanet-Tolosan to Soverato Marina | 850.26 mi (1,368.36 km) |
| Castanet-Tolosan to Sovicille | 488.71 mi (786.50 km) |
| Castanet-Tolosan to Spello | 563.07 mi (906.18 km) |
