| Langley Park to Montana | 4,877.22 mi (7,849.13 km) |
| Langley Park to Nova Zagora | 5,028.30 mi (8,092.27 km) |
| Langley Park to Novi Iskar | 4,907.09 mi (7,897.19 km) |
| Langley Park to Novi Pazar | 5,039.39 mi (8,110.12 km) |
| Langley Park to Omurtag | 5,018.83 mi (8,077.02 km) |
| Langley Park to Panagyurishte | 4,953.49 mi (7,971.86 km) |
| Langley Park to Parvomay | 5,012.31 mi (8,066.54 km) |
| Langley Park to Pavlikeni | 4,968.94 mi (7,996.74 km) |
| Langley Park to Pazardzhik | 4,972.00 mi (8,001.66 km) |
| Langley Park to Pernik | 4,902.19 mi (7,889.32 km) |
| Langley Park to Peshtera | 4,977.52 mi (8,010.55 km) |
| Langley Park to Petrich | 4,958.48 mi (7,979.90 km) |
| Langley Park to Pleven | 4,933.88 mi (7,940.31 km) |
| Langley Park to Plovdiv | 4,991.15 mi (8,032.48 km) |
| Langley Park to Pomorie | 5,089.34 mi (8,190.51 km) |
