| Horndean to Karlovo | 1,338.78 mi (2,154.55 km) |
| Horndean to Karnobat | 1,431.19 mi (2,303.28 km) |
| Horndean to Kavarna | 1,459.54 mi (2,348.89 km) |
| Horndean to Kazanlak | 1,364.78 mi (2,196.40 km) |
| Horndean to Knezha | 1,275.74 mi (2,053.10 km) |
| Horndean to Kostinbrod | 1,265.41 mi (2,036.48 km) |
| Horndean to Kozloduy | 1,250.50 mi (2,012.49 km) |
| Horndean to Kyustendil | 1,264.67 mi (2,035.28 km) |
| Horndean to Levski | 1,325.16 mi (2,132.64 km) |
| Horndean to Lom | 1,227.98 mi (1,976.24 km) |
| Horndean to Lovech | 1,316.19 mi (2,118.21 km) |
| Horndean to Lukovit | 1,290.49 mi (2,076.84 km) |
| Horndean to Lyaskovets | 1,359.83 mi (2,188.44 km) |
| Horndean to Mezdra | 1,272.74 mi (2,048.29 km) |
| Horndean to Momchilgrad | 1,408.61 mi (2,266.94 km) |
