| Knokke-Heist to Sestao | 627.71 mi (1,010.21 km) |
| Knokke-Heist to Sevilla | 1,074.92 mi (1,729.92 km) |
| Knokke-Heist to Sevilla La Nueva | 836.24 mi (1,345.80 km) |
| Knokke-Heist to Silla | 846.67 mi (1,362.58 km) |
| Knokke-Heist to Silleda | 804.94 mi (1,295.42 km) |
| Knokke-Heist to Sitges | 701.90 mi (1,129.60 km) |
| Knokke-Heist to Socuellamos | 882.55 mi (1,420.33 km) |
| Knokke-Heist to Soller | 800.23 mi (1,287.85 km) |
| Knokke-Heist to Solsona | 651.19 mi (1,047.98 km) |
| Knokke-Heist to Son Servera | 809.82 mi (1,303.28 km) |
| Knokke-Heist to Sonseca | 876.29 mi (1,410.25 km) |
| Knokke-Heist to Sopelana | 622.74 mi (1,002.21 km) |
| Knokke-Heist to Soria | 715.25 mi (1,151.09 km) |
| Knokke-Heist to Suances | 644.52 mi (1,037.25 km) |
| Knokke-Heist to Sueca | 856.49 mi (1,378.38 km) |
