| Azpeitia to Karlovo | 1,364.48 mi (2,195.91 km) |
| Azpeitia to Karnobat | 1,473.12 mi (2,370.77 km) |
| Azpeitia to Kavarna | 1,529.81 mi (2,461.99 km) |
| Azpeitia to Kazanlak | 1,394.41 mi (2,244.09 km) |
| Azpeitia to Knezha | 1,318.65 mi (2,122.17 km) |
| Azpeitia to Kostinbrod | 1,282.92 mi (2,064.66 km) |
| Azpeitia to Kozloduy | 1,298.68 mi (2,090.03 km) |
| Azpeitia to Kyustendil | 1,263.00 mi (2,032.60 km) |
| Azpeitia to Levski | 1,372.12 mi (2,208.21 km) |
| Azpeitia to Lom | 1,273.79 mi (2,049.96 km) |
| Azpeitia to Lovech | 1,354.01 mi (2,179.07 km) |
| Azpeitia to Lukovit | 1,325.91 mi (2,133.84 km) |
| Azpeitia to Lyaskovets | 1,404.11 mi (2,259.70 km) |
| Azpeitia to Mezdra | 1,303.23 mi (2,097.35 km) |
| Azpeitia to Momchilgrad | 1,411.47 mi (2,271.55 km) |
