| Washington to Karlovo | 1,453.66 mi (2,339.44 km) |
| Washington to Karnobat | 1,533.63 mi (2,468.15 km) |
| Washington to Kavarna | 1,546.80 mi (2,489.33 km) |
| Washington to Kazanlak | 1,476.43 mi (2,376.09 km) |
| Washington to Knezha | 1,386.22 mi (2,230.91 km) |
| Washington to Kostinbrod | 1,388.23 mi (2,234.14 km) |
| Washington to Kozloduy | 1,360.06 mi (2,188.80 km) |
| Washington to Kyustendil | 1,396.08 mi (2,246.77 km) |
| Washington to Levski | 1,430.84 mi (2,302.72 km) |
| Washington to Lom | 1,340.08 mi (2,156.65 km) |
| Washington to Lovech | 1,426.70 mi (2,296.04 km) |
| Washington to Lukovit | 1,403.60 mi (2,258.88 km) |
| Washington to Lyaskovets | 1,464.86 mi (2,357.47 km) |
| Washington to Mezdra | 1,389.20 mi (2,235.70 km) |
| Washington to Momchilgrad | 1,530.29 mi (2,462.77 km) |
