| Northallerton to Karlovo | 1,434.47 mi (2,308.56 km) |
| Northallerton to Karnobat | 1,516.24 mi (2,440.16 km) |
| Northallerton to Kavarna | 1,531.46 mi (2,464.64 km) |
| Northallerton to Kazanlak | 1,457.71 mi (2,345.97 km) |
| Northallerton to Knezha | 1,367.48 mi (2,200.74 km) |
| Northallerton to Kostinbrod | 1,367.88 mi (2,201.39 km) |
| Northallerton to Kozloduy | 1,341.38 mi (2,158.74 km) |
| Northallerton to Kyustendil | 1,374.63 mi (2,212.25 km) |
| Northallerton to Levski | 1,412.83 mi (2,273.72 km) |
| Northallerton to Lom | 1,321.02 mi (2,125.98 km) |
| Northallerton to Lovech | 1,408.03 mi (2,266.01 km) |
| Northallerton to Lukovit | 1,384.55 mi (2,228.22 km) |
| Northallerton to Lyaskovets | 1,447.00 mi (2,328.72 km) |
| Northallerton to Mezdra | 1,369.68 mi (2,204.28 km) |
| Northallerton to Momchilgrad | 1,510.35 mi (2,430.68 km) |
