| Horten to Karlovo | 1,310.33 mi (2,108.77 km) |
| Horten to Karnobat | 1,356.37 mi (2,182.86 km) |
| Horten to Kavarna | 1,337.84 mi (2,153.04 km) |
| Horten to Kazanlak | 1,323.92 mi (2,130.65 km) |
| Horten to Knezha | 1,241.61 mi (1,998.17 km) |
| Horten to Kostinbrod | 1,269.11 mi (2,042.43 km) |
| Horten to Kozloduy | 1,216.78 mi (1,958.21 km) |
| Horten to Kyustendil | 1,294.27 mi (2,082.92 km) |
| Horten to Levski | 1,271.08 mi (2,045.61 km) |
| Horten to Lom | 1,204.64 mi (1,938.68 km) |
| Horten to Lovech | 1,277.33 mi (2,055.66 km) |
| Horten to Lukovit | 1,262.34 mi (2,031.54 km) |
| Horten to Lyaskovets | 1,299.98 mi (2,092.12 km) |
| Horten to Mezdra | 1,256.61 mi (2,022.31 km) |
| Horten to Momchilgrad | 1,393.16 mi (2,242.08 km) |
