| Reda to Sestao | 1,235.86 mi (1,988.93 km) |
| Reda to Sevilla | 1,659.77 mi (2,671.14 km) |
| Reda to Sevilla La Nueva | 1,424.97 mi (2,293.27 km) |
| Reda to Silla | 1,366.89 mi (2,199.79 km) |
| Reda to Silleda | 1,452.27 mi (2,337.20 km) |
| Reda to Sitges | 1,194.60 mi (1,922.53 km) |
| Reda to Socuellamos | 1,443.22 mi (2,322.63 km) |
| Reda to Soller | 1,255.88 mi (2,021.14 km) |
| Reda to Solsona | 1,159.74 mi (1,866.43 km) |
| Reda to Son Servera | 1,247.39 mi (2,007.48 km) |
| Reda to Sonseca | 1,457.57 mi (2,345.73 km) |
| Reda to Sopelana | 1,231.41 mi (1,981.76 km) |
| Reda to Soria | 1,297.56 mi (2,088.22 km) |
| Reda to Suances | 1,266.19 mi (2,037.74 km) |
| Reda to Sueca | 1,373.19 mi (2,209.93 km) |
