| Hilliard to Karlovo | 5,168.72 mi (8,318.25 km) |
| Hilliard to Karnobat | 5,251.90 mi (8,452.12 km) |
| Hilliard to Kavarna | 5,264.82 mi (8,472.91 km) |
| Hilliard to Kazanlak | 5,192.63 mi (8,356.73 km) |
| Hilliard to Knezha | 5,102.43 mi (8,211.57 km) |
| Hilliard to Kostinbrod | 5,099.61 mi (8,207.03 km) |
| Hilliard to Kozloduy | 5,076.43 mi (8,169.72 km) |
| Hilliard to Kyustendil | 5,102.51 mi (8,211.70 km) |
| Hilliard to Levski | 5,148.37 mi (8,285.49 km) |
| Hilliard to Lom | 5,055.61 mi (8,136.22 km) |
| Hilliard to Lovech | 5,143.05 mi (8,276.94 km) |
| Hilliard to Lukovit | 5,119.08 mi (8,238.36 km) |
| Hilliard to Lyaskovets | 5,182.60 mi (8,340.59 km) |
| Hilliard to Mezdra | 5,103.41 mi (8,213.14 km) |
| Hilliard to Momchilgrad | 5,242.82 mi (8,437.50 km) |
