| Langley Park to Karlovo | 4,973.00 mi (8,003.28 km) |
| Langley Park to Karnobat | 5,061.25 mi (8,145.30 km) |
| Langley Park to Kavarna | 5,080.50 mi (8,176.27 km) |
| Langley Park to Kazanlak | 4,998.18 mi (8,043.80 km) |
| Langley Park to Knezha | 4,908.42 mi (7,899.33 km) |
| Langley Park to Kostinbrod | 4,900.94 mi (7,887.30 km) |
| Langley Park to Kozloduy | 4,882.74 mi (7,858.01 km) |
| Langley Park to Kyustendil | 4,900.56 mi (7,886.68 km) |
| Langley Park to Levski | 4,956.23 mi (7,976.27 km) |
| Langley Park to Lom | 4,860.99 mi (7,823.00 km) |
| Langley Park to Lovech | 4,949.04 mi (7,964.72 km) |
| Langley Park to Lukovit | 4,924.06 mi (7,924.52 km) |
| Langley Park to Lyaskovets | 4,990.77 mi (8,031.87 km) |
| Langley Park to Mezdra | 4,907.14 mi (7,897.28 km) |
| Langley Park to Momchilgrad | 5,044.25 mi (8,117.93 km) |
