| Boortmeerbeek to Sestao | 637.73 mi (1,026.32 km) |
| Boortmeerbeek to Sevilla | 1,081.91 mi (1,741.16 km) |
| Boortmeerbeek to Sevilla La Nueva | 842.65 mi (1,356.11 km) |
| Boortmeerbeek to Silla | 838.27 mi (1,349.06 km) |
| Boortmeerbeek to Silleda | 830.59 mi (1,336.70 km) |
| Boortmeerbeek to Sitges | 686.36 mi (1,104.59 km) |
| Boortmeerbeek to Socuellamos | 882.72 mi (1,420.60 km) |
| Boortmeerbeek to Soller | 780.20 mi (1,255.61 km) |
| Boortmeerbeek to Solsona | 637.63 mi (1,026.17 km) |
| Boortmeerbeek to Son Servera | 787.23 mi (1,266.93 km) |
| Boortmeerbeek to Sonseca | 881.15 mi (1,418.08 km) |
| Boortmeerbeek to Sopelana | 632.87 mi (1,018.50 km) |
| Boortmeerbeek to Soria | 718.90 mi (1,156.96 km) |
| Boortmeerbeek to Suances | 659.14 mi (1,060.79 km) |
| Boortmeerbeek to Sueca | 847.54 mi (1,363.99 km) |
