| Luxembourg to Karlovo | 1,011.75 mi (1,628.26 km) |
| Luxembourg to Karnobat | 1,103.93 mi (1,776.60 km) |
| Luxembourg to Kavarna | 1,133.23 mi (1,823.76 km) |
| Luxembourg to Kazanlak | 1,037.61 mi (1,669.87 km) |
| Luxembourg to Knezha | 948.48 mi (1,526.44 km) |
| Luxembourg to Kostinbrod | 938.99 mi (1,511.16 km) |
| Luxembourg to Kozloduy | 923.22 mi (1,485.79 km) |
| Luxembourg to Kyustendil | 939.55 mi (1,512.06 km) |
| Luxembourg to Levski | 997.88 mi (1,605.93 km) |
| Luxembourg to Lom | 900.74 mi (1,449.61 km) |
| Luxembourg to Lovech | 988.96 mi (1,591.57 km) |
| Luxembourg to Lukovit | 963.33 mi (1,550.33 km) |
| Luxembourg to Lyaskovets | 1,032.55 mi (1,661.73 km) |
| Luxembourg to Mezdra | 945.75 mi (1,522.04 km) |
| Luxembourg to Momchilgrad | 1,082.30 mi (1,741.79 km) |
