| Kingsport to Karlovo | 5,312.42 mi (8,549.51 km) |
| Kingsport to Karnobat | 5,399.23 mi (8,689.21 km) |
| Kingsport to Kavarna | 5,416.49 mi (8,717.00 km) |
| Kingsport to Kazanlak | 5,337.25 mi (8,589.47 km) |
| Kingsport to Knezha | 5,247.31 mi (8,444.72 km) |
| Kingsport to Kostinbrod | 5,241.15 mi (8,434.81 km) |
| Kingsport to Kozloduy | 5,221.52 mi (8,403.22 km) |
| Kingsport to Kyustendil | 5,241.65 mi (8,435.61 km) |
| Kingsport to Levski | 5,294.59 mi (8,520.82 km) |
| Kingsport to Lom | 5,200.03 mi (8,368.64 km) |
| Kingsport to Lovech | 5,287.95 mi (8,510.14 km) |
| Kingsport to Lukovit | 5,263.25 mi (8,470.38 km) |
| Kingsport to Lyaskovets | 5,329.06 mi (8,576.29 km) |
| Kingsport to Mezdra | 5,246.68 mi (8,443.72 km) |
| Kingsport to Momchilgrad | 5,384.50 mi (8,665.52 km) |
