| Muskegon to Karlovo | 5,130.54 mi (8,256.81 km) |
| Muskegon to Karnobat | 5,208.39 mi (8,382.10 km) |
| Muskegon to Kavarna | 5,215.21 mi (8,393.07 km) |
| Muskegon to Kazanlak | 5,153.09 mi (8,293.10 km) |
| Muskegon to Knezha | 5,062.93 mi (8,148.00 km) |
| Muskegon to Kostinbrod | 5,064.68 mi (8,150.82 km) |
| Muskegon to Kozloduy | 5,036.74 mi (8,105.84 km) |
| Muskegon to Kyustendil | 5,070.83 mi (8,160.71 km) |
| Muskegon to Levski | 5,106.81 mi (8,218.62 km) |
| Muskegon to Lom | 5,016.95 mi (8,074.00 km) |
| Muskegon to Lovech | 5,103.34 mi (8,213.03 km) |
| Muskegon to Lukovit | 5,080.46 mi (8,176.21 km) |
| Muskegon to Lyaskovets | 5,140.57 mi (8,272.95 km) |
| Muskegon to Mezdra | 5,066.10 mi (8,153.10 km) |
| Muskegon to Momchilgrad | 5,207.07 mi (8,379.96 km) |
