| Kastamonu to Saarijarvi | 1,514.44 mi (2,437.26 km) |
| Kastamonu to Salo | 1,389.00 mi (2,235.38 km) |
| Kastamonu to Sastamala | 1,452.46 mi (2,337.50 km) |
| Kastamonu to Savonlinna | 1,430.33 mi (2,301.90 km) |
| Kastamonu to Seinajoki | 1,545.79 mi (2,487.70 km) |
| Kastamonu to Siilinjarvi | 1,519.80 mi (2,445.89 km) |
| Kastamonu to Sipoo | 1,361.49 mi (2,191.11 km) |
| Kastamonu to Sippola | 1,368.10 mi (2,201.75 km) |
| Kastamonu to Sodankyla | 1,819.55 mi (2,928.29 km) |
| Kastamonu to Somero | 1,399.44 mi (2,252.17 km) |
| Kastamonu to Sotkamo | 1,587.11 mi (2,554.21 km) |
| Kastamonu to Tampere | 1,451.78 mi (2,336.41 km) |
| Kastamonu to Tornio | 1,731.81 mi (2,787.08 km) |
| Kastamonu to Turku | 1,405.23 mi (2,261.50 km) |
| Kastamonu to Tuusula | 1,367.72 mi (2,201.14 km) |
