| North Hykeham to Karlovo | 1,372.07 mi (2,208.14 km) |
| North Hykeham to Karnobat | 1,457.03 mi (2,344.87 km) |
| North Hykeham to Kavarna | 1,476.10 mi (2,375.55 km) |
| North Hykeham to Kazanlak | 1,396.14 mi (2,246.87 km) |
| North Hykeham to Knezha | 1,305.99 mi (2,101.79 km) |
| North Hykeham to Kostinbrod | 1,303.46 mi (2,097.71 km) |
| North Hykeham to Kozloduy | 1,280.06 mi (2,060.05 km) |
| North Hykeham to Kyustendil | 1,308.23 mi (2,105.39 km) |
| North Hykeham to Levski | 1,352.61 mi (2,176.81 km) |
| North Hykeham to Lom | 1,259.04 mi (2,026.23 km) |
| North Hykeham to Lovech | 1,346.63 mi (2,167.20 km) |
| North Hykeham to Lukovit | 1,322.47 mi (2,128.31 km) |
| North Hykeham to Lyaskovets | 1,387.01 mi (2,232.18 km) |
| North Hykeham to Mezdra | 1,306.76 mi (2,103.03 km) |
| North Hykeham to Momchilgrad | 1,446.48 mi (2,327.88 km) |
