| West Boldon to Karlovo | 1,452.11 mi (2,336.95 km) |
| West Boldon to Karnobat | 1,531.87 mi (2,465.31 km) |
| West Boldon to Kavarna | 1,544.81 mi (2,486.12 km) |
| West Boldon to Kazanlak | 1,474.83 mi (2,373.51 km) |
| West Boldon to Knezha | 1,384.63 mi (2,228.34 km) |
| West Boldon to Kostinbrod | 1,386.83 mi (2,231.89 km) |
| West Boldon to Kozloduy | 1,358.46 mi (2,186.22 km) |
| West Boldon to Kyustendil | 1,394.82 mi (2,244.75 km) |
| West Boldon to Levski | 1,429.16 mi (2,300.01 km) |
| West Boldon to Lom | 1,338.53 mi (2,154.15 km) |
| West Boldon to Lovech | 1,425.09 mi (2,293.46 km) |
| West Boldon to Lukovit | 1,402.05 mi (2,256.37 km) |
| West Boldon to Lyaskovets | 1,463.16 mi (2,354.73 km) |
| West Boldon to Mezdra | 1,387.70 mi (2,233.28 km) |
| West Boldon to Momchilgrad | 1,528.84 mi (2,460.43 km) |
