| Willow Grove to Montana | 4,749.81 mi (7,644.08 km) |
| Willow Grove to Nova Zagora | 4,900.92 mi (7,887.28 km) |
| Willow Grove to Novi Iskar | 4,779.66 mi (7,692.11 km) |
| Willow Grove to Novi Pazar | 4,912.13 mi (7,905.32 km) |
| Willow Grove to Omurtag | 4,891.50 mi (7,872.12 km) |
| Willow Grove to Panagyurishte | 4,826.06 mi (7,766.79 km) |
| Willow Grove to Parvomay | 4,884.89 mi (7,861.47 km) |
| Willow Grove to Pavlikeni | 4,841.58 mi (7,791.78 km) |
| Willow Grove to Pazardzhik | 4,844.57 mi (7,796.58 km) |
| Willow Grove to Pernik | 4,774.75 mi (7,684.22 km) |
| Willow Grove to Peshtera | 4,850.09 mi (7,805.46 km) |
| Willow Grove to Petrich | 4,831.04 mi (7,774.81 km) |
| Willow Grove to Pleven | 4,806.50 mi (7,735.32 km) |
| Willow Grove to Plovdiv | 4,863.72 mi (7,827.41 km) |
| Willow Grove to Pomorie | 4,962.03 mi (7,985.62 km) |
