| Johnston to Karlovo | 5,468.83 mi (8,801.23 km) |
| Johnston to Karnobat | 5,542.34 mi (8,919.54 km) |
| Johnston to Kavarna | 5,544.30 mi (8,922.68 km) |
| Johnston to Kazanlak | 5,490.28 mi (8,835.75 km) |
| Johnston to Knezha | 5,400.45 mi (8,691.18 km) |
| Johnston to Kostinbrod | 5,405.59 mi (8,699.45 km) |
| Johnston to Kozloduy | 5,374.19 mi (8,648.93 km) |
| Johnston to Kyustendil | 5,414.06 mi (8,713.08 km) |
| Johnston to Levski | 5,442.62 mi (8,759.05 km) |
| Johnston to Lom | 5,355.24 mi (8,618.43 km) |
| Johnston to Lovech | 5,440.55 mi (8,755.73 km) |
| Johnston to Lukovit | 5,418.58 mi (8,720.36 km) |
| Johnston to Lyaskovets | 5,475.90 mi (8,812.61 km) |
| Johnston to Mezdra | 5,405.25 mi (8,698.90 km) |
| Johnston to Momchilgrad | 5,546.91 mi (8,926.89 km) |
