| Bilbao to Sentrupert | 903.55 mi (1,454.13 km) |
| Bilbao to Sevnica | 914.01 mi (1,470.96 km) |
| Bilbao to Sezana | 843.32 mi (1,357.20 km) |
| Bilbao to Skocjan | 912.76 mi (1,468.95 km) |
| Bilbao to Skofja Loka | 867.53 mi (1,396.16 km) |
| Bilbao to Skofljica | 879.07 mi (1,414.72 km) |
| Bilbao to Slovenj Gradec | 907.33 mi (1,460.20 km) |
| Bilbao to Slovenska Bistrica | 929.70 mi (1,496.20 km) |
| Bilbao to Slovenske Konjice | 922.09 mi (1,483.96 km) |
| Bilbao to Smarje | 925.74 mi (1,489.84 km) |
| Bilbao to Smarjeske Toplice | 909.14 mi (1,463.12 km) |
| Bilbao to Smartno | 892.42 mi (1,436.21 km) |
| Bilbao to Smartno | 903.51 mi (1,454.06 km) |
| Bilbao to Sodrazica | 880.46 mi (1,416.97 km) |
| Bilbao to Solcava | 888.22 mi (1,429.46 km) |
