| Willow Grove to Karlovo | 4,845.60 mi (7,798.23 km) |
| Willow Grove to Karnobat | 4,933.92 mi (7,940.38 km) |
| Willow Grove to Kavarna | 4,953.32 mi (7,971.59 km) |
| Willow Grove to Kazanlak | 4,870.79 mi (7,838.78 km) |
| Willow Grove to Knezha | 4,781.03 mi (7,694.33 km) |
| Willow Grove to Kostinbrod | 4,773.51 mi (7,682.22 km) |
| Willow Grove to Kozloduy | 4,755.36 mi (7,653.02 km) |
| Willow Grove to Kyustendil | 4,773.11 mi (7,681.59 km) |
| Willow Grove to Levski | 4,828.87 mi (7,771.31 km) |
| Willow Grove to Lom | 4,733.60 mi (7,617.99 km) |
| Willow Grove to Lovech | 4,821.66 mi (7,759.71 km) |
| Willow Grove to Lukovit | 4,796.67 mi (7,719.49 km) |
| Willow Grove to Lyaskovets | 4,863.42 mi (7,826.91 km) |
| Willow Grove to Mezdra | 4,779.73 mi (7,692.23 km) |
| Willow Grove to Momchilgrad | 4,916.82 mi (7,912.85 km) |
