| Mont-de-Marsan to Karlovo | 1,271.17 mi (2,045.75 km) |
| Mont-de-Marsan to Karnobat | 1,379.19 mi (2,219.59 km) |
| Mont-de-Marsan to Kavarna | 1,434.21 mi (2,308.13 km) |
| Mont-de-Marsan to Kazanlak | 1,300.98 mi (2,093.72 km) |
| Mont-de-Marsan to Knezha | 1,223.85 mi (1,969.59 km) |
| Mont-de-Marsan to Kostinbrod | 1,189.74 mi (1,914.70 km) |
| Mont-de-Marsan to Kozloduy | 1,203.41 mi (1,936.70 km) |
| Mont-de-Marsan to Kyustendil | 1,171.22 mi (1,884.89 km) |
| Mont-de-Marsan to Levski | 1,277.33 mi (2,055.66 km) |
| Mont-de-Marsan to Lom | 1,178.53 mi (1,896.66 km) |
| Mont-de-Marsan to Lovech | 1,259.76 mi (2,027.39 km) |
| Mont-de-Marsan to Lukovit | 1,231.66 mi (1,982.17 km) |
| Mont-de-Marsan to Lyaskovets | 1,309.67 mi (2,107.70 km) |
| Mont-de-Marsan to Mezdra | 1,209.21 mi (1,946.03 km) |
| Mont-de-Marsan to Momchilgrad | 1,320.28 mi (2,124.78 km) |
