| Lisburn to Karlovo | 1,612.04 mi (2,594.33 km) |
| Lisburn to Karnobat | 1,696.18 mi (2,729.74 km) |
| Lisburn to Kavarna | 1,713.59 mi (2,757.76 km) |
| Lisburn to Kazanlak | 1,635.94 mi (2,632.80 km) |
| Lisburn to Knezha | 1,545.76 mi (2,487.66 km) |
| Lisburn to Kostinbrod | 1,543.67 mi (2,484.29 km) |
| Lisburn to Kozloduy | 1,519.78 mi (2,445.85 km) |
| Lisburn to Kyustendil | 1,548.44 mi (2,491.97 km) |
| Lisburn to Levski | 1,592.05 mi (2,562.16 km) |
| Lisburn to Lom | 1,498.91 mi (2,412.26 km) |
| Lisburn to Lovech | 1,586.39 mi (2,553.05 km) |
| Lisburn to Lukovit | 1,562.37 mi (2,514.39 km) |
| Lisburn to Lyaskovets | 1,626.39 mi (2,617.43 km) |
| Lisburn to Mezdra | 1,546.81 mi (2,489.35 km) |
| Lisburn to Momchilgrad | 1,686.65 mi (2,714.41 km) |
