| Welkenraedt to Karnobat | 1,134.86 mi (1,826.38 km) |
| Welkenraedt to Kavarna | 1,159.15 mi (1,865.47 km) |
| Welkenraedt to Kazanlak | 1,071.44 mi (1,724.31 km) |
| Welkenraedt to Knezha | 981.58 mi (1,579.71 km) |
| Welkenraedt to Kostinbrod | 976.37 mi (1,571.31 km) |
| Welkenraedt to Kozloduy | 955.89 mi (1,538.36 km) |
| Welkenraedt to Kyustendil | 979.90 mi (1,576.99 km) |
| Welkenraedt to Levski | 1,029.50 mi (1,656.83 km) |
| Welkenraedt to Lom | 934.22 mi (1,503.48 km) |
| Welkenraedt to Lovech | 1,022.22 mi (1,645.10 km) |
| Welkenraedt to Lukovit | 997.41 mi (1,605.17 km) |
| Welkenraedt to Lyaskovets | 1,064.09 mi (1,712.49 km) |
| Welkenraedt to Mezdra | 980.93 mi (1,578.66 km) |
| Welkenraedt to Momchilgrad | 1,119.63 mi (1,801.87 km) |
| Welkenraedt to Montana | 951.02 mi (1,530.52 km) |
