| Balaguer to Karlovo | 1,225.47 mi (1,972.21 km) |
| Balaguer to Karnobat | 1,335.56 mi (2,149.37 km) |
| Balaguer to Kavarna | 1,397.98 mi (2,249.83 km) |
| Balaguer to Kazanlak | 1,255.64 mi (2,020.76 km) |
| Balaguer to Knezha | 1,185.01 mi (1,907.09 km) |
| Balaguer to Kostinbrod | 1,144.04 mi (1,841.15 km) |
| Balaguer to Kozloduy | 1,166.92 mi (1,877.98 km) |
| Balaguer to Kyustendil | 1,120.11 mi (1,802.65 km) |
| Balaguer to Levski | 1,238.09 mi (1,992.51 km) |
| Balaguer to Lom | 1,142.15 mi (1,838.12 km) |
| Balaguer to Lovech | 1,218.19 mi (1,960.49 km) |
| Balaguer to Lukovit | 1,190.22 mi (1,915.47 km) |
| Balaguer to Lyaskovets | 1,268.64 mi (2,041.68 km) |
| Balaguer to Mezdra | 1,166.94 mi (1,878.01 km) |
| Balaguer to Momchilgrad | 1,266.15 mi (2,037.67 km) |
