| Haverhill to Karlovo | 1,304.48 mi (2,099.35 km) |
| Haverhill to Karnobat | 1,392.36 mi (2,240.79 km) |
| Haverhill to Kavarna | 1,415.13 mi (2,277.43 km) |
| Haverhill to Kazanlak | 1,329.29 mi (2,139.29 km) |
| Haverhill to Knezha | 1,239.41 mi (1,994.64 km) |
| Haverhill to Kostinbrod | 1,234.04 mi (1,986.00 km) |
| Haverhill to Kozloduy | 1,213.69 mi (1,953.25 km) |
| Haverhill to Kyustendil | 1,236.91 mi (1,990.62 km) |
| Haverhill to Levski | 1,287.16 mi (2,071.49 km) |
| Haverhill to Lom | 1,192.07 mi (1,918.46 km) |
| Haverhill to Lovech | 1,280.05 mi (2,060.04 km) |
| Haverhill to Lukovit | 1,255.28 mi (2,020.17 km) |
| Haverhill to Lyaskovets | 1,321.73 mi (2,127.11 km) |
| Haverhill to Mezdra | 1,238.80 mi (1,993.65 km) |
| Haverhill to Momchilgrad | 1,377.34 mi (2,216.62 km) |
