| Castle Rock to Solofra | 5,722.21 mi (9,209.01 km) |
| Castle Rock to Somma Lombardo | 5,266.62 mi (8,475.81 km) |
| Castle Rock to Somma Vesuviana | 5,705.58 mi (9,182.24 km) |
| Castle Rock to Sommacampagna | 5,355.24 mi (8,618.43 km) |
| Castle Rock to Sona | 5,353.05 mi (8,614.90 km) |
| Castle Rock to Sondrio | 5,284.32 mi (8,504.29 km) |
| Castle Rock to Sora | 5,633.90 mi (9,066.88 km) |
| Castle Rock to Sorbolo | 5,368.04 mi (8,639.02 km) |
| Castle Rock to Soresina | 5,326.14 mi (8,571.59 km) |
| Castle Rock to Sorisole | 5,297.55 mi (8,525.59 km) |
| Castle Rock to Sorrento | 5,715.72 mi (9,198.57 km) |
| Castle Rock to Sorso | 5,494.52 mi (8,842.58 km) |
| Castle Rock to Sortino | 5,915.92 mi (9,520.76 km) |
| Castle Rock to Soverato Marina | 5,893.01 mi (9,483.88 km) |
| Castle Rock to Sovicille | 5,471.67 mi (8,805.80 km) |
