| Boadilla del Monte to Sestao | 205.56 mi (330.82 km) |
| Boadilla del Monte to Sevilla | 246.64 mi (396.92 km) |
| Boadilla del Monte to Sevilla La Nueva | 9.07 mi (14.59 km) |
| Boadilla del Monte to Silla | 197.36 mi (317.62 km) |
| Boadilla del Monte to Silleda | 275.41 mi (443.23 km) |
| Boadilla del Monte to Sitges | 302.34 mi (486.57 km) |
| Boadilla del Monte to Socuellamos | 95.95 mi (154.42 km) |
| Boadilla del Monte to Soller | 350.28 mi (563.72 km) |
| Boadilla del Monte to Solsona | 300.98 mi (484.37 km) |
| Boadilla del Monte to Son Servera | 386.58 mi (622.14 km) |
| Boadilla del Monte to Sonseca | 49.00 mi (78.86 km) |
| Boadilla del Monte to Sopelana | 210.62 mi (338.95 km) |
| Boadilla del Monte to Soria | 119.18 mi (191.81 km) |
| Boadilla del Monte to Suances | 209.30 mi (336.83 km) |
| Boadilla del Monte to Sueca | 206.64 mi (332.55 km) |
