| Guadarrama to Sestao | 190.56 mi (306.68 km) |
| Guadarrama to Sevilla | 258.22 mi (415.57 km) |
| Guadarrama to Sevilla La Nueva | 22.70 mi (36.53 km) |
| Guadarrama to Silla | 214.67 mi (345.48 km) |
| Guadarrama to Silleda | 255.58 mi (411.32 km) |
| Guadarrama to Sitges | 309.89 mi (498.72 km) |
| Guadarrama to Socuellamos | 117.40 mi (188.93 km) |
| Guadarrama to Soller | 363.50 mi (585.00 km) |
| Guadarrama to Solsona | 304.81 mi (490.54 km) |
| Guadarrama to Son Servera | 399.94 mi (643.64 km) |
| Guadarrama to Sonseca | 67.61 mi (108.81 km) |
| Guadarrama to Sopelana | 195.62 mi (314.81 km) |
| Guadarrama to Soria | 113.22 mi (182.21 km) |
| Guadarrama to Suances | 190.74 mi (306.97 km) |
| Guadarrama to Sueca | 224.41 mi (361.15 km) |
