| Sligo to Karlovo | 1,701.96 mi (2,739.04 km) |
| Sligo to Karnobat | 1,787.90 mi (2,877.35 km) |
| Sligo to Kavarna | 1,807.22 mi (2,908.44 km) |
| Sligo to Kazanlak | 1,726.35 mi (2,778.29 km) |
| Sligo to Knezha | 1,636.28 mi (2,633.34 km) |
| Sligo to Kostinbrod | 1,632.34 mi (2,627.00 km) |
| Sligo to Kozloduy | 1,610.42 mi (2,591.71 km) |
| Sligo to Kyustendil | 1,635.71 mi (2,632.42 km) |
| Sligo to Levski | 1,683.27 mi (2,708.96 km) |
| Sligo to Lom | 1,589.17 mi (2,557.52 km) |
| Sligo to Lovech | 1,676.93 mi (2,698.76 km) |
| Sligo to Lukovit | 1,652.52 mi (2,659.48 km) |
| Sligo to Lyaskovets | 1,717.72 mi (2,764.41 km) |
| Sligo to Mezdra | 1,636.46 mi (2,633.63 km) |
| Sligo to Momchilgrad | 1,775.56 mi (2,857.49 km) |
