| Castleton to Solofra | 1,183.60 mi (1,904.82 km) |
| Castleton to Somma Lombardo | 729.99 mi (1,174.81 km) |
| Castleton to Somma Vesuviana | 1,168.74 mi (1,880.91 km) |
| Castleton to Sommacampagna | 811.20 mi (1,305.49 km) |
| Castleton to Sona | 808.93 mi (1,301.85 km) |
| Castleton to Sondrio | 740.08 mi (1,191.04 km) |
| Castleton to Sora | 1,096.53 mi (1,764.69 km) |
| Castleton to Sorbolo | 828.01 mi (1,332.56 km) |
| Castleton to Soresina | 786.22 mi (1,265.30 km) |
| Castleton to Sorisole | 755.97 mi (1,216.61 km) |
| Castleton to Sorrento | 1,180.61 mi (1,900.00 km) |
| Castleton to Sorso | 1,015.29 mi (1,633.96 km) |
| Castleton to Sortino | 1,401.03 mi (2,254.74 km) |
| Castleton to Soverato Marina | 1,357.00 mi (2,183.88 km) |
| Castleton to Sovicille | 937.55 mi (1,508.85 km) |
