| Leon Valley to Karlovo | 6,294.04 mi (10,129.28 km) |
| Leon Valley to Karnobat | 6,373.89 mi (10,257.79 km) |
| Leon Valley to Kavarna | 6,382.43 mi (10,271.53 km) |
| Leon Valley to Kazanlak | 6,317.14 mi (10,166.46 km) |
| Leon Valley to Knezha | 6,226.91 mi (10,021.25 km) |
| Leon Valley to Kostinbrod | 6,226.73 mi (10,020.95 km) |
| Leon Valley to Kozloduy | 6,200.77 mi (9,979.18 km) |
| Leon Valley to Kyustendil | 6,231.32 mi (10,028.33 km) |
| Leon Valley to Levski | 6,271.59 mi (10,093.14 km) |
| Leon Valley to Lom | 6,180.57 mi (9,946.67 km) |
| Leon Valley to Lovech | 6,267.43 mi (10,086.45 km) |
| Leon Valley to Lukovit | 6,244.10 mi (10,048.91 km) |
| Leon Valley to Lyaskovets | 6,305.53 mi (10,147.78 km) |
| Leon Valley to Mezdra | 6,229.19 mi (10,024.92 km) |
| Leon Valley to Momchilgrad | 6,369.57 mi (10,250.83 km) |
