| Casier to Sestao | 770.36 mi (1,239.78 km) |
| Casier to Sevilla | 1,107.35 mi (1,782.11 km) |
| Casier to Sevilla La Nueva | 900.64 mi (1,449.44 km) |
| Casier to Silla | 778.23 mi (1,252.44 km) |
| Casier to Silleda | 1,034.71 mi (1,665.20 km) |
| Casier to Sitges | 607.84 mi (978.22 km) |
| Casier to Socuellamos | 883.72 mi (1,422.21 km) |
| Casier to Soller | 633.88 mi (1,020.13 km) |
| Casier to Solsona | 593.23 mi (954.71 km) |
| Casier to Son Servera | 615.77 mi (990.98 km) |
| Casier to Sonseca | 919.85 mi (1,480.36 km) |
| Casier to Sopelana | 767.65 mi (1,235.41 km) |
| Casier to Soria | 783.40 mi (1,260.76 km) |
| Casier to Suances | 818.09 mi (1,316.58 km) |
| Casier to Sueca | 780.92 mi (1,256.77 km) |
