| Bilbao to Solofra | 925.36 mi (1,489.22 km) |
| Bilbao to Somma Lombardo | 596.51 mi (959.99 km) |
| Bilbao to Somma Vesuviana | 903.87 mi (1,454.64 km) |
| Bilbao to Sommacampagna | 695.75 mi (1,119.70 km) |
| Bilbao to Sona | 695.25 mi (1,118.90 km) |
| Bilbao to Sondrio | 658.75 mi (1,060.16 km) |
| Bilbao to Sora | 848.03 mi (1,364.77 km) |
| Bilbao to Sorbolo | 672.26 mi (1,081.90 km) |
| Bilbao to Soresina | 646.91 mi (1,041.11 km) |
| Bilbao to Sorisole | 642.46 mi (1,033.95 km) |
| Bilbao to Sorrento | 905.58 mi (1,457.38 km) |
| Bilbao to Sorso | 613.65 mi (987.57 km) |
| Bilbao to Sortino | 1,033.95 mi (1,663.98 km) |
| Bilbao to Soverato Marina | 1,061.07 mi (1,707.63 km) |
| Bilbao to Sovicille | 711.37 mi (1,144.84 km) |
