| Alloa to Sesena | 1,106.36 mi (1,780.51 km) |
| Alloa to Sestao | 885.44 mi (1,424.97 km) |
| Alloa to Sevilla | 1,308.19 mi (2,105.33 km) |
| Alloa to Sevilla La Nueva | 1,089.55 mi (1,753.46 km) |
| Alloa to Silla | 1,167.87 mi (1,879.51 km) |
| Alloa to Silleda | 947.71 mi (1,525.19 km) |
| Alloa to Sitges | 1,058.63 mi (1,703.70 km) |
| Alloa to Socuellamos | 1,163.23 mi (1,872.04 km) |
| Alloa to Soller | 1,167.66 mi (1,879.17 km) |
| Alloa to Solsona | 1,004.16 mi (1,616.04 km) |
| Alloa to Son Servera | 1,185.42 mi (1,907.74 km) |
| Alloa to Sonseca | 1,134.26 mi (1,825.41 km) |
| Alloa to Sopelana | 880.61 mi (1,417.20 km) |
| Alloa to Soria | 993.22 mi (1,598.43 km) |
| Alloa to Suances | 876.36 mi (1,410.37 km) |
