| Houilles to Karlovo | 1,167.54 mi (1,878.98 km) |
| Houilles to Karnobat | 1,264.51 mi (2,035.04 km) |
| Houilles to Kavarna | 1,299.64 mi (2,091.57 km) |
| Houilles to Kazanlak | 1,194.68 mi (1,922.66 km) |
| Houilles to Knezha | 1,107.18 mi (1,781.83 km) |
| Houilles to Kostinbrod | 1,091.55 mi (1,756.68 km) |
| Houilles to Kozloduy | 1,082.68 mi (1,742.41 km) |
| Houilles to Kyustendil | 1,087.26 mi (1,749.77 km) |
| Houilles to Levski | 1,158.19 mi (1,863.92 km) |
| Houilles to Lom | 1,059.29 mi (1,704.77 km) |
| Houilles to Lovech | 1,147.14 mi (1,846.14 km) |
| Houilles to Lukovit | 1,120.57 mi (1,803.38 km) |
| Houilles to Lyaskovets | 1,192.75 mi (1,919.55 km) |
| Houilles to Mezdra | 1,101.55 mi (1,772.78 km) |
| Houilles to Momchilgrad | 1,233.83 mi (1,985.66 km) |
