| Dusseldorf to Karlovo | 1,032.49 mi (1,661.63 km) |
| Dusseldorf to Karnobat | 1,117.48 mi (1,798.41 km) |
| Dusseldorf to Kavarna | 1,138.03 mi (1,831.49 km) |
| Dusseldorf to Kazanlak | 1,056.45 mi (1,700.19 km) |
| Dusseldorf to Knezha | 966.29 mi (1,555.09 km) |
| Dusseldorf to Kostinbrod | 964.50 mi (1,552.21 km) |
| Dusseldorf to Kozloduy | 940.35 mi (1,513.34 km) |
| Dusseldorf to Kyustendil | 970.48 mi (1,561.84 km) |
| Dusseldorf to Levski | 1,012.93 mi (1,630.15 km) |
| Dusseldorf to Lom | 919.38 mi (1,479.59 km) |
| Dusseldorf to Lovech | 1,006.93 mi (1,620.49 km) |
| Dusseldorf to Lukovit | 982.83 mi (1,581.71 km) |
| Dusseldorf to Lyaskovets | 1,047.35 mi (1,685.56 km) |
| Dusseldorf to Mezdra | 967.28 mi (1,556.68 km) |
| Dusseldorf to Momchilgrad | 1,107.32 mi (1,782.06 km) |
