| Langley Park to Devnya | 5,059.59 mi (8,142.63 km) |
| Langley Park to Dimitrovgrad | 5,030.04 mi (8,095.07 km) |
| Langley Park to Dobrich | 5,055.14 mi (8,135.46 km) |
| Langley Park to Dospat | 4,987.88 mi (8,027.21 km) |
| Langley Park to Dupnitsa | 4,919.31 mi (7,916.87 km) |
| Langley Park to Elhovo | 5,064.33 mi (8,150.26 km) |
| Langley Park to Etropole | 4,932.31 mi (7,937.78 km) |
| Langley Park to Gabrovo | 4,985.06 mi (8,022.68 km) |
| Langley Park to Gorna Oryahovitsa | 4,988.71 mi (8,028.55 km) |
| Langley Park to Gotse Delchev | 4,973.36 mi (8,003.84 km) |
| Langley Park to Harmanli | 5,047.17 mi (8,122.63 km) |
| Langley Park to Haskovo | 5,033.58 mi (8,100.77 km) |
| Langley Park to Ihtiman | 4,941.02 mi (7,951.80 km) |
| Langley Park to Isperih | 5,009.35 mi (8,061.77 km) |
| Langley Park to Kardzhali | 5,037.30 mi (8,106.74 km) |
