| Kastamonu to Sesena | 1,948.43 mi (3,135.70 km) |
| Kastamonu to Sestao | 1,867.93 mi (3,006.14 km) |
| Kastamonu to Sevilla | 2,126.25 mi (3,421.88 km) |
| Kastamonu to Sevilla La Nueva | 1,960.99 mi (3,155.91 km) |
| Kastamonu to Silla | 1,793.34 mi (2,886.09 km) |
| Kastamonu to Silleda | 2,135.30 mi (3,436.44 km) |
| Kastamonu to Sitges | 1,649.96 mi (2,655.35 km) |
| Kastamonu to Socuellamos | 1,917.18 mi (3,085.40 km) |
| Kastamonu to Soller | 1,626.03 mi (2,616.84 km) |
| Kastamonu to Solsona | 1,655.17 mi (2,663.74 km) |
| Kastamonu to Son Servera | 1,594.47 mi (2,566.05 km) |
| Kastamonu to Sonseca | 1,968.69 mi (3,168.31 km) |
| Kastamonu to Sopelana | 1,865.89 mi (3,002.86 km) |
| Kastamonu to Soria | 1,859.58 mi (2,992.70 km) |
| Kastamonu to Suances | 1,918.47 mi (3,087.47 km) |
