| Heiloo to Karlovo | 1,154.80 mi (1,858.48 km) |
| Heiloo to Karnobat | 1,236.86 mi (1,990.54 km) |
| Heiloo to Kavarna | 1,253.48 mi (2,017.28 km) |
| Heiloo to Kazanlak | 1,178.03 mi (1,895.86 km) |
| Heiloo to Knezha | 1,087.79 mi (1,750.64 km) |
| Heiloo to Kostinbrod | 1,088.53 mi (1,751.82 km) |
| Heiloo to Kozloduy | 1,061.70 mi (1,708.64 km) |
| Heiloo to Kyustendil | 1,095.99 mi (1,763.82 km) |
| Heiloo to Levski | 1,133.25 mi (1,823.78 km) |
| Heiloo to Lom | 1,041.34 mi (1,675.88 km) |
| Heiloo to Lovech | 1,128.35 mi (1,815.91 km) |
| Heiloo to Lukovit | 1,104.87 mi (1,778.12 km) |
| Heiloo to Lyaskovets | 1,167.46 mi (1,878.84 km) |
| Heiloo to Mezdra | 1,090.05 mi (1,754.27 km) |
| Heiloo to Momchilgrad | 1,230.85 mi (1,980.86 km) |
