| Port-de-Bouc to Sestao | 401.50 mi (646.15 km) |
| Port-de-Bouc to Sevilla | 717.26 mi (1,154.31 km) |
| Port-de-Bouc to Sevilla La Nueva | 509.37 mi (819.75 km) |
| Port-de-Bouc to Silla | 395.27 mi (636.13 km) |
| Port-de-Bouc to Silleda | 668.62 mi (1,076.04 km) |
| Port-de-Bouc to Sitges | 221.26 mi (356.08 km) |
| Port-de-Bouc to Socuellamos | 493.28 mi (793.85 km) |
| Port-de-Bouc to Soller | 277.79 mi (447.05 km) |
| Port-de-Bouc to Solsona | 201.37 mi (324.07 km) |
| Port-de-Bouc to Son Servera | 274.69 mi (442.07 km) |
| Port-de-Bouc to Sonseca | 527.92 mi (849.60 km) |
| Port-de-Bouc to Sopelana | 399.89 mi (643.56 km) |
| Port-de-Bouc to Soria | 395.63 mi (636.70 km) |
| Port-de-Bouc to Suances | 453.39 mi (729.66 km) |
| Port-de-Bouc to Sueca | 399.80 mi (643.42 km) |
