| Middelkerke to Sestao | 608.31 mi (978.99 km) |
| Middelkerke to Sevilla | 1,055.85 mi (1,699.23 km) |
| Middelkerke to Sevilla La Nueva | 817.42 mi (1,315.52 km) |
| Middelkerke to Silla | 831.62 mi (1,338.37 km) |
| Middelkerke to Silleda | 782.84 mi (1,259.87 km) |
| Middelkerke to Sitges | 689.23 mi (1,109.20 km) |
| Middelkerke to Socuellamos | 865.17 mi (1,392.36 km) |
| Middelkerke to Soller | 788.93 mi (1,269.66 km) |
| Middelkerke to Solsona | 637.96 mi (1,026.70 km) |
| Middelkerke to Son Servera | 799.41 mi (1,286.53 km) |
| Middelkerke to Sonseca | 857.79 mi (1,380.49 km) |
| Middelkerke to Sopelana | 603.33 mi (970.96 km) |
| Middelkerke to Soria | 697.18 mi (1,122.00 km) |
| Middelkerke to Suances | 624.19 mi (1,004.54 km) |
| Middelkerke to Sueca | 841.59 mi (1,354.41 km) |
