| Clayton to Karlovo | 1,434.19 mi (2,308.11 km) |
| Clayton to Karnobat | 1,518.07 mi (2,443.10 km) |
| Clayton to Kavarna | 1,535.68 mi (2,471.44 km) |
| Clayton to Kazanlak | 1,457.99 mi (2,346.41 km) |
| Clayton to Knezha | 1,367.79 mi (2,201.25 km) |
| Clayton to Kostinbrod | 1,366.20 mi (2,198.69 km) |
| Clayton to Kozloduy | 1,341.79 mi (2,159.41 km) |
| Clayton to Kyustendil | 1,371.55 mi (2,207.30 km) |
| Clayton to Levski | 1,413.98 mi (2,275.58 km) |
| Clayton to Lom | 1,320.99 mi (2,125.94 km) |
| Clayton to Lovech | 1,408.41 mi (2,266.62 km) |
| Clayton to Lukovit | 1,384.47 mi (2,228.10 km) |
| Clayton to Lyaskovets | 1,448.31 mi (2,330.83 km) |
| Clayton to Mezdra | 1,369.04 mi (2,203.25 km) |
| Clayton to Momchilgrad | 1,509.08 mi (2,428.64 km) |
