| Mattoon to Karlovo | 5,391.74 mi (8,677.17 km) |
| Mattoon to Karnobat | 5,471.63 mi (8,805.74 km) |
| Mattoon to Kavarna | 5,480.62 mi (8,820.21 km) |
| Mattoon to Kazanlak | 5,414.82 mi (8,714.32 km) |
| Mattoon to Knezha | 5,324.60 mi (8,569.11 km) |
| Mattoon to Kostinbrod | 5,324.58 mi (8,569.08 km) |
| Mattoon to Kozloduy | 5,298.45 mi (8,527.04 km) |
| Mattoon to Kyustendil | 5,329.43 mi (8,576.89 km) |
| Mattoon to Levski | 5,369.27 mi (8,641.01 km) |
| Mattoon to Lom | 5,278.27 mi (8,494.55 km) |
| Mattoon to Lovech | 5,365.11 mi (8,634.30 km) |
| Mattoon to Lukovit | 5,341.80 mi (8,596.79 km) |
| Mattoon to Lyaskovets | 5,403.23 mi (8,695.66 km) |
| Mattoon to Mezdra | 5,326.93 mi (8,572.86 km) |
| Mattoon to Momchilgrad | 5,467.37 mi (8,798.88 km) |
