| Dortmund to Karlovo | 1,016.29 mi (1,635.56 km) |
| Dortmund to Karnobat | 1,099.17 mi (1,768.95 km) |
| Dortmund to Kavarna | 1,117.43 mi (1,798.33 km) |
| Dortmund to Kazanlak | 1,039.68 mi (1,673.20 km) |
| Dortmund to Knezha | 949.45 mi (1,527.99 km) |
| Dortmund to Kostinbrod | 949.80 mi (1,528.56 km) |
| Dortmund to Kozloduy | 923.38 mi (1,486.04 km) |
| Dortmund to Kyustendil | 957.33 mi (1,540.68 km) |
| Dortmund to Levski | 995.23 mi (1,601.67 km) |
| Dortmund to Lom | 902.88 mi (1,453.05 km) |
| Dortmund to Lovech | 990.03 mi (1,593.30 km) |
| Dortmund to Lukovit | 966.40 mi (1,555.28 km) |
| Dortmund to Lyaskovets | 1,029.51 mi (1,656.84 km) |
| Dortmund to Mezdra | 951.45 mi (1,531.22 km) |
| Dortmund to Momchilgrad | 1,092.16 mi (1,757.67 km) |
