| Wattrelos to Karlovo | 1,159.08 mi (1,865.36 km) |
| Wattrelos to Karnobat | 1,249.66 mi (2,011.13 km) |
| Wattrelos to Kavarna | 1,276.28 mi (2,053.98 km) |
| Wattrelos to Kazanlak | 1,184.56 mi (1,906.37 km) |
| Wattrelos to Knezha | 1,095.10 mi (1,762.39 km) |
| Wattrelos to Kostinbrod | 1,087.11 mi (1,749.54 km) |
| Wattrelos to Kozloduy | 1,069.64 mi (1,721.42 km) |
| Wattrelos to Kyustendil | 1,088.39 mi (1,751.59 km) |
| Wattrelos to Levski | 1,143.88 mi (1,840.90 km) |
| Wattrelos to Lom | 1,047.48 mi (1,685.76 km) |
| Wattrelos to Lovech | 1,135.66 mi (1,827.67 km) |
| Wattrelos to Lukovit | 1,110.35 mi (1,786.93 km) |
| Wattrelos to Lyaskovets | 1,178.53 mi (1,896.66 km) |
| Wattrelos to Mezdra | 1,093.17 mi (1,759.28 km) |
| Wattrelos to Momchilgrad | 1,230.46 mi (1,980.24 km) |
