| Halstead to Karlovo | 1,293.23 mi (2,081.25 km) |
| Halstead to Karnobat | 1,381.42 mi (2,223.18 km) |
| Halstead to Kavarna | 1,404.60 mi (2,260.49 km) |
| Halstead to Kazanlak | 1,318.12 mi (2,121.31 km) |
| Halstead to Knezha | 1,228.28 mi (1,976.72 km) |
| Halstead to Kostinbrod | 1,222.61 mi (1,967.60 km) |
| Halstead to Kozloduy | 1,202.58 mi (1,935.37 km) |
| Halstead to Kyustendil | 1,225.28 mi (1,971.90 km) |
| Halstead to Levski | 1,276.15 mi (2,053.76 km) |
| Halstead to Lom | 1,180.90 mi (1,900.48 km) |
| Halstead to Lovech | 1,268.91 mi (2,042.12 km) |
| Halstead to Lukovit | 1,244.08 mi (2,002.15 km) |
| Halstead to Lyaskovets | 1,310.72 mi (2,109.41 km) |
| Halstead to Mezdra | 1,227.52 mi (1,975.49 km) |
| Halstead to Momchilgrad | 1,365.92 mi (2,198.24 km) |
