| Preston to Karlovo | 1,467.40 mi (2,361.55 km) |
| Preston to Karnobat | 1,551.94 mi (2,497.61 km) |
| Preston to Kavarna | 1,570.23 mi (2,527.04 km) |
| Preston to Kazanlak | 1,491.38 mi (2,400.14 km) |
| Preston to Knezha | 1,401.21 mi (2,255.03 km) |
| Preston to Kostinbrod | 1,398.93 mi (2,251.35 km) |
| Preston to Kozloduy | 1,375.25 mi (2,213.25 km) |
| Preston to Kyustendil | 1,403.74 mi (2,259.10 km) |
| Preston to Levski | 1,447.66 mi (2,329.79 km) |
| Preston to Lom | 1,354.31 mi (2,179.55 km) |
| Preston to Lovech | 1,441.85 mi (2,320.43 km) |
| Preston to Lukovit | 1,417.76 mi (2,281.66 km) |
| Preston to Lyaskovets | 1,482.04 mi (2,385.11 km) |
| Preston to Mezdra | 1,402.13 mi (2,256.51 km) |
| Preston to Momchilgrad | 1,541.92 mi (2,481.49 km) |
