| Southport to Karlovo | 1,476.54 mi (2,376.26 km) |
| Southport to Karnobat | 1,561.63 mi (2,513.20 km) |
| Southport to Kavarna | 1,580.52 mi (2,543.60 km) |
| Southport to Kazanlak | 1,500.67 mi (2,415.09 km) |
| Southport to Knezha | 1,410.53 mi (2,270.03 km) |
| Southport to Kostinbrod | 1,407.70 mi (2,265.48 km) |
| Southport to Kozloduy | 1,384.60 mi (2,228.30 km) |
| Southport to Kyustendil | 1,412.12 mi (2,272.59 km) |
| Southport to Levski | 1,457.19 mi (2,345.13 km) |
| Southport to Lom | 1,363.55 mi (2,194.42 km) |
| Southport to Lovech | 1,451.17 mi (2,335.44 km) |
| Southport to Lukovit | 1,426.97 mi (2,296.48 km) |
| Southport to Lyaskovets | 1,491.60 mi (2,400.50 km) |
| Southport to Mezdra | 1,411.19 mi (2,271.09 km) |
| Southport to Momchilgrad | 1,550.78 mi (2,495.74 km) |
