| Billdal to Sesena | 1,393.79 mi (2,243.08 km) |
| Billdal to Sestao | 1,179.38 mi (1,898.02 km) |
| Billdal to Sevilla | 1,625.13 mi (2,615.40 km) |
| Billdal to Sevilla La Nueva | 1,385.93 mi (2,230.43 km) |
| Billdal to Silla | 1,375.13 mi (2,213.05 km) |
| Billdal to Silleda | 1,351.38 mi (2,174.84 km) |
| Billdal to Sitges | 1,214.88 mi (1,955.16 km) |
| Billdal to Socuellamos | 1,425.68 mi (2,294.41 km) |
| Billdal to Soller | 1,298.31 mi (2,089.42 km) |
| Billdal to Solsona | 1,169.91 mi (1,882.78 km) |
| Billdal to Son Servera | 1,299.01 mi (2,090.56 km) |
| Billdal to Sonseca | 1,424.70 mi (2,292.83 km) |
| Billdal to Sopelana | 1,174.45 mi (1,890.09 km) |
| Billdal to Soria | 1,262.49 mi (2,031.78 km) |
| Billdal to Suances | 1,197.32 mi (1,926.90 km) |
