| Gyal to Sestao | 1,111.09 mi (1,788.13 km) |
| Gyal to Sevilla | 1,457.07 mi (2,344.93 km) |
| Gyal to Sevilla La Nueva | 1,249.93 mi (2,011.57 km) |
| Gyal to Silla | 1,126.47 mi (1,812.88 km) |
| Gyal to Silleda | 1,371.01 mi (2,206.43 km) |
| Gyal to Sitges | 957.34 mi (1,540.69 km) |
| Gyal to Socuellamos | 1,233.59 mi (1,985.27 km) |
| Gyal to Soller | 977.17 mi (1,572.60 km) |
| Gyal to Solsona | 943.19 mi (1,517.92 km) |
| Gyal to Son Servera | 956.07 mi (1,538.64 km) |
| Gyal to Sonseca | 1,269.74 mi (2,043.45 km) |
| Gyal to Sopelana | 1,108.02 mi (1,783.18 km) |
| Gyal to Soria | 1,131.18 mi (1,820.46 km) |
| Gyal to Suances | 1,156.52 mi (1,861.24 km) |
| Gyal to Sueca | 1,128.68 mi (1,816.44 km) |
