| Herndon to Montana | 4,894.62 mi (7,877.13 km) |
| Herndon to Nova Zagora | 5,045.58 mi (8,120.08 km) |
| Herndon to Novi Iskar | 4,924.59 mi (7,925.36 km) |
| Herndon to Novi Pazar | 5,056.37 mi (8,137.45 km) |
| Herndon to Omurtag | 5,035.94 mi (8,104.57 km) |
| Herndon to Panagyurishte | 4,970.96 mi (7,999.99 km) |
| Herndon to Parvomay | 5,029.75 mi (8,094.60 km) |
| Herndon to Pavlikeni | 4,986.15 mi (8,024.43 km) |
| Herndon to Pazardzhik | 4,989.52 mi (8,029.85 km) |
| Herndon to Pernik | 4,919.77 mi (7,917.60 km) |
| Herndon to Peshtera | 4,995.07 mi (8,038.80 km) |
| Herndon to Petrich | 4,976.26 mi (8,008.52 km) |
| Herndon to Pleven | 4,951.13 mi (7,968.07 km) |
| Herndon to Plovdiv | 5,008.63 mi (8,060.61 km) |
| Herndon to Pomorie | 5,106.43 mi (8,218.00 km) |
