| Hillegom to Karlovo | 1,149.51 mi (1,849.96 km) |
| Hillegom to Karnobat | 1,232.95 mi (1,984.24 km) |
| Hillegom to Kavarna | 1,251.14 mi (2,013.52 km) |
| Hillegom to Kazanlak | 1,173.11 mi (1,887.93 km) |
| Hillegom to Knezha | 1,082.89 mi (1,742.74 km) |
| Hillegom to Kostinbrod | 1,082.31 mi (1,741.81 km) |
| Hillegom to Kozloduy | 1,056.86 mi (1,700.85 km) |
| Hillegom to Kyustendil | 1,088.86 mi (1,752.35 km) |
| Hillegom to Levski | 1,128.90 mi (1,816.79 km) |
| Hillegom to Lom | 1,036.20 mi (1,667.60 km) |
| Hillegom to Lovech | 1,123.49 mi (1,808.09 km) |
| Hillegom to Lukovit | 1,099.71 mi (1,769.81 km) |
| Hillegom to Lyaskovets | 1,163.22 mi (1,872.02 km) |
| Hillegom to Mezdra | 1,084.51 mi (1,745.36 km) |
| Hillegom to Momchilgrad | 1,224.93 mi (1,971.34 km) |
