| Thornbury to Karlovo | 1,415.16 mi (2,277.47 km) |
| Thornbury to Karnobat | 1,506.20 mi (2,424.00 km) |
| Thornbury to Kavarna | 1,532.55 mi (2,466.41 km) |
| Thornbury to Kazanlak | 1,440.82 mi (2,318.78 km) |
| Thornbury to Knezha | 1,351.47 mi (2,174.98 km) |
| Thornbury to Kostinbrod | 1,342.57 mi (2,160.66 km) |
| Thornbury to Kozloduy | 1,326.06 mi (2,134.09 km) |
| Thornbury to Kyustendil | 1,342.74 mi (2,160.93 km) |
| Thornbury to Levski | 1,400.39 mi (2,253.71 km) |
| Thornbury to Lom | 1,303.81 mi (2,098.28 km) |
| Thornbury to Lovech | 1,392.01 mi (2,240.22 km) |
| Thornbury to Lukovit | 1,366.57 mi (2,199.28 km) |
| Thornbury to Lyaskovets | 1,435.04 mi (2,309.48 km) |
| Thornbury to Mezdra | 1,349.19 mi (2,171.31 km) |
| Thornbury to Momchilgrad | 1,485.87 mi (2,391.28 km) |
