| Knottingley to Karlovo | 1,410.80 mi (2,270.47 km) |
| Knottingley to Karnobat | 1,494.53 mi (2,405.21 km) |
| Knottingley to Kavarna | 1,512.03 mi (2,433.39 km) |
| Knottingley to Kazanlak | 1,434.55 mi (2,308.69 km) |
| Knottingley to Knezha | 1,344.35 mi (2,163.52 km) |
| Knottingley to Kostinbrod | 1,342.95 mi (2,161.27 km) |
| Knottingley to Kozloduy | 1,318.34 mi (2,121.67 km) |
| Knottingley to Kyustendil | 1,348.46 mi (2,170.14 km) |
| Knottingley to Levski | 1,390.48 mi (2,237.76 km) |
| Knottingley to Lom | 1,297.58 mi (2,088.25 km) |
| Knottingley to Lovech | 1,384.97 mi (2,228.89 km) |
| Knottingley to Lukovit | 1,361.07 mi (2,190.42 km) |
| Knottingley to Lyaskovets | 1,424.80 mi (2,292.99 km) |
| Knottingley to Mezdra | 1,345.68 mi (2,165.66 km) |
| Knottingley to Momchilgrad | 1,485.79 mi (2,391.15 km) |
