| Kastamonu to Solofra | 984.11 mi (1,583.77 km) |
| Kastamonu to Somma Lombardo | 1,285.20 mi (2,068.32 km) |
| Kastamonu to Somma Vesuviana | 1,005.07 mi (1,617.51 km) |
| Kastamonu to Sommacampagna | 1,179.86 mi (1,898.80 km) |
| Kastamonu to Sona | 1,180.89 mi (1,900.45 km) |
| Kastamonu to Sondrio | 1,232.56 mi (1,983.62 km) |
| Kastamonu to Sora | 1,040.35 mi (1,674.28 km) |
| Kastamonu to Sorbolo | 1,196.44 mi (1,925.48 km) |
| Kastamonu to Soresina | 1,227.25 mi (1,975.06 km) |
| Kastamonu to Sorisole | 1,239.54 mi (1,994.85 km) |
| Kastamonu to Sorrento | 1,010.94 mi (1,626.95 km) |
| Kastamonu to Sorso | 1,308.26 mi (2,105.44 km) |
| Kastamonu to Sortino | 1,041.51 mi (1,676.14 km) |
| Kastamonu to Soverato Marina | 928.52 mi (1,494.30 km) |
| Kastamonu to Sovicille | 1,155.44 mi (1,859.51 km) |
