| Humanes de Madrid to Karlovo | 1,484.97 mi (2,389.83 km) |
| Humanes de Madrid to Karnobat | 1,595.36 mi (2,567.48 km) |
| Humanes de Madrid to Kavarna | 1,659.46 mi (2,670.64 km) |
| Humanes de Madrid to Kazanlak | 1,515.16 mi (2,438.42 km) |
| Humanes de Madrid to Knezha | 1,446.34 mi (2,327.65 km) |
| Humanes de Madrid to Kostinbrod | 1,403.78 mi (2,259.16 km) |
| Humanes de Madrid to Kozloduy | 1,428.76 mi (2,299.36 km) |
| Humanes de Madrid to Kyustendil | 1,378.29 mi (2,218.15 km) |
| Humanes de Madrid to Levski | 1,499.20 mi (2,412.74 km) |
| Humanes de Madrid to Lom | 1,404.06 mi (2,259.62 km) |
| Humanes de Madrid to Lovech | 1,478.81 mi (2,379.91 km) |
| Humanes de Madrid to Lukovit | 1,450.94 mi (2,335.06 km) |
| Humanes de Madrid to Lyaskovets | 1,529.27 mi (2,461.13 km) |
| Humanes de Madrid to Mezdra | 1,427.52 mi (2,297.37 km) |
| Humanes de Madrid to Momchilgrad | 1,522.69 mi (2,450.53 km) |
