| Lowell to Karlovo | 4,584.53 mi (7,378.08 km) |
| Lowell to Karnobat | 4,672.66 mi (7,519.91 km) |
| Lowell to Kavarna | 4,691.93 mi (7,550.93 km) |
| Lowell to Kazanlak | 4,609.67 mi (7,418.54 km) |
| Lowell to Knezha | 4,519.88 mi (7,274.04 km) |
| Lowell to Kostinbrod | 4,512.59 mi (7,262.31 km) |
| Lowell to Kozloduy | 4,494.19 mi (7,232.71 km) |
| Lowell to Kyustendil | 4,512.42 mi (7,262.03 km) |
| Lowell to Levski | 4,567.65 mi (7,350.92 km) |
| Lowell to Lom | 4,472.46 mi (7,197.73 km) |
| Lowell to Lovech | 4,560.51 mi (7,339.43 km) |
| Lowell to Lukovit | 4,535.56 mi (7,299.27 km) |
| Lowell to Lyaskovets | 4,602.19 mi (7,406.50 km) |
| Lowell to Mezdra | 4,518.68 mi (7,272.11 km) |
| Lowell to Momchilgrad | 4,655.91 mi (7,492.97 km) |
