| Prior Lake to Karlovo | 5,302.31 mi (8,533.24 km) |
| Prior Lake to Karnobat | 5,373.09 mi (8,647.16 km) |
| Prior Lake to Kavarna | 5,372.28 mi (8,645.85 km) |
| Prior Lake to Kazanlak | 5,323.05 mi (8,566.62 km) |
| Prior Lake to Knezha | 5,233.55 mi (8,422.58 km) |
| Prior Lake to Kostinbrod | 5,240.83 mi (8,434.29 km) |
| Prior Lake to Kozloduy | 5,207.30 mi (8,380.33 km) |
| Prior Lake to Kyustendil | 5,250.82 mi (8,450.38 km) |
| Prior Lake to Levski | 5,274.62 mi (8,488.67 km) |
| Prior Lake to Lom | 5,188.89 mi (8,350.71 km) |
| Prior Lake to Lovech | 5,273.41 mi (8,486.74 km) |
| Prior Lake to Lukovit | 5,252.03 mi (8,452.33 km) |
| Prior Lake to Lyaskovets | 5,307.57 mi (8,541.70 km) |
| Prior Lake to Mezdra | 5,239.36 mi (8,431.93 km) |
| Prior Lake to Momchilgrad | 5,381.27 mi (8,660.31 km) |
