| Opovo to Sestao | 1,163.34 mi (1,872.21 km) |
| Opovo to Sevilla | 1,468.57 mi (2,363.44 km) |
| Opovo to Sevilla La Nueva | 1,278.37 mi (2,057.33 km) |
| Opovo to Silla | 1,132.82 mi (1,823.09 km) |
| Opovo to Silleda | 1,429.25 mi (2,300.16 km) |
| Opovo to Sitges | 972.89 mi (1,565.71 km) |
| Opovo to Socuellamos | 1,248.89 mi (2,009.89 km) |
| Opovo to Soller | 972.87 mi (1,565.68 km) |
| Opovo to Solsona | 968.36 mi (1,558.42 km) |
| Opovo to Son Servera | 946.78 mi (1,523.69 km) |
| Opovo to Sonseca | 1,292.55 mi (2,080.16 km) |
| Opovo to Sopelana | 1,160.87 mi (1,868.25 km) |
| Opovo to Soria | 1,167.35 mi (1,878.66 km) |
| Opovo to Suances | 1,212.21 mi (1,950.87 km) |
| Opovo to Sueca | 1,133.16 mi (1,823.65 km) |
