| Bilbao to Sierpc | 1,228.94 mi (1,977.79 km) |
| Bilbao to Skarzysko-Kamienna | 1,236.73 mi (1,990.32 km) |
| Bilbao to Skawina | 1,169.74 mi (1,882.52 km) |
| Bilbao to Skierniewice | 1,224.12 mi (1,970.03 km) |
| Bilbao to Skoczow | 1,121.54 mi (1,804.95 km) |
| Bilbao to Skwierzyna | 1,064.54 mi (1,713.21 km) |
| Bilbao to Slawno | 1,169.20 mi (1,881.65 km) |
| Bilbao to Slubice | 1,021.92 mi (1,644.63 km) |
| Bilbao to Slupca | 1,143.51 mi (1,840.30 km) |
| Bilbao to Slupsk | 1,185.20 mi (1,907.39 km) |
| Bilbao to Sochaczew | 1,233.91 mi (1,985.79 km) |
| Bilbao to Sokolka | 1,389.78 mi (2,236.63 km) |
| Bilbao to Sokolow Podlaski | 1,317.97 mi (2,121.07 km) |
| Bilbao to Solec Kujawski | 1,180.82 mi (1,900.34 km) |
| Bilbao to Sopot | 1,237.46 mi (1,991.49 km) |
