| Aspen Hill to Karlovo | 4,972.49 mi (8,002.45 km) |
| Aspen Hill to Karnobat | 5,060.58 mi (8,144.22 km) |
| Aspen Hill to Kavarna | 5,079.62 mi (8,174.87 km) |
| Aspen Hill to Kazanlak | 4,997.63 mi (8,042.91 km) |
| Aspen Hill to Knezha | 4,907.84 mi (7,898.41 km) |
| Aspen Hill to Kostinbrod | 4,900.52 mi (7,886.62 km) |
| Aspen Hill to Kozloduy | 4,882.15 mi (7,857.07 km) |
| Aspen Hill to Kyustendil | 4,900.24 mi (7,886.18 km) |
| Aspen Hill to Levski | 4,955.59 mi (7,975.26 km) |
| Aspen Hill to Lom | 4,860.43 mi (7,822.10 km) |
| Aspen Hill to Lovech | 4,948.47 mi (7,963.80 km) |
| Aspen Hill to Lukovit | 4,923.52 mi (7,923.65 km) |
| Aspen Hill to Lyaskovets | 4,990.13 mi (8,030.84 km) |
| Aspen Hill to Mezdra | 4,906.64 mi (7,896.48 km) |
| Aspen Hill to Momchilgrad | 5,043.83 mi (8,117.27 km) |
