| Siano to Sestao | 922.57 mi (1,484.73 km) |
| Siano to Sevilla | 1,134.41 mi (1,825.66 km) |
| Siano to Sevilla La Nueva | 981.22 mi (1,579.12 km) |
| Siano to Silla | 803.67 mi (1,293.38 km) |
| Siano to Silleda | 1,185.41 mi (1,907.73 km) |
| Siano to Sitges | 672.02 mi (1,081.52 km) |
| Siano to Socuellamos | 929.29 mi (1,495.54 km) |
| Siano to Soller | 635.72 mi (1,023.10 km) |
| Siano to Solsona | 687.18 mi (1,105.91 km) |
| Siano to Son Servera | 603.16 mi (970.69 km) |
| Siano to Sonseca | 984.26 mi (1,584.02 km) |
| Siano to Sopelana | 921.66 mi (1,483.28 km) |
| Siano to Soria | 892.00 mi (1,435.53 km) |
| Siano to Suances | 975.53 mi (1,569.96 km) |
| Siano to Sueca | 800.84 mi (1,288.83 km) |
