| Barbastro to Karlovo | 1,256.70 mi (2,022.46 km) |
| Barbastro to Karnobat | 1,366.57 mi (2,199.28 km) |
| Barbastro to Kavarna | 1,427.89 mi (2,297.96 km) |
| Barbastro to Kazanlak | 1,286.84 mi (2,070.98 km) |
| Barbastro to Knezha | 1,215.12 mi (1,955.55 km) |
| Barbastro to Kostinbrod | 1,175.18 mi (1,891.26 km) |
| Barbastro to Kozloduy | 1,196.64 mi (1,925.80 km) |
| Barbastro to Kyustendil | 1,152.04 mi (1,854.03 km) |
| Barbastro to Levski | 1,268.32 mi (2,041.16 km) |
| Barbastro to Lom | 1,171.82 mi (1,885.86 km) |
| Barbastro to Lovech | 1,248.77 mi (2,009.70 km) |
| Barbastro to Lukovit | 1,220.75 mi (1,964.61 km) |
| Barbastro to Lyaskovets | 1,299.19 mi (2,090.84 km) |
| Barbastro to Mezdra | 1,197.58 mi (1,927.31 km) |
| Barbastro to Momchilgrad | 1,298.66 mi (2,089.99 km) |
