| Bilbao to Krosno Odrzanskie | 1,030.58 mi (1,658.56 km) |
| Bilbao to Krotoszyn | 1,109.20 mi (1,785.08 km) |
| Bilbao to Kruszwica | 1,172.16 mi (1,886.42 km) |
| Bilbao to Krynica | 1,209.65 mi (1,946.74 km) |
| Bilbao to Krzeszowice | 1,163.86 mi (1,873.05 km) |
| Bilbao to Kudowa-Zdroj | 1,028.31 mi (1,654.91 km) |
| Bilbao to Kutno | 1,199.82 mi (1,930.92 km) |
| Bilbao to Kwidzyn | 1,226.84 mi (1,974.41 km) |
| Bilbao to Lancut | 1,274.74 mi (2,051.49 km) |
| Bilbao to Lapy | 1,356.13 mi (2,182.48 km) |
| Bilbao to Lask | 1,174.30 mi (1,889.86 km) |
| Bilbao to Laziska Gorne | 1,130.83 mi (1,819.89 km) |
| Bilbao to Lebork | 1,212.79 mi (1,951.80 km) |
| Bilbao to Leczna | 1,322.10 mi (2,127.72 km) |
| Bilbao to Leczyca | 1,188.50 mi (1,912.71 km) |
