| Bilbao to Jozefow | 1,271.33 mi (2,046.00 km) |
| Bilbao to Kalisz | 1,136.66 mi (1,829.28 km) |
| Bilbao to Kamien Pomorski | 1,090.48 mi (1,754.96 km) |
| Bilbao to Kamienna Gora | 1,028.96 mi (1,655.95 km) |
| Bilbao to Karczew | 1,270.86 mi (2,045.26 km) |
| Bilbao to Kartuzy | 1,220.65 mi (1,964.45 km) |
| Bilbao to Katowice | 1,140.20 mi (1,834.97 km) |
| Bilbao to Kedzierzyn-Kozle | 1,107.52 mi (1,782.39 km) |
| Bilbao to Kepno | 1,120.46 mi (1,803.20 km) |
| Bilbao to Ketrzyn | 1,327.16 mi (2,135.85 km) |
| Bilbao to Kety | 1,141.77 mi (1,837.49 km) |
| Bilbao to Kielce | 1,220.14 mi (1,963.63 km) |
| Bilbao to Kielczow | 1,084.45 mi (1,745.25 km) |
| Bilbao to Klobuck | 1,150.42 mi (1,851.42 km) |
| Bilbao to Klodzko | 1,045.05 mi (1,681.84 km) |
