| Concord to Karlovo | 6,489.58 mi (10,443.97 km) |
| Concord to Karnobat | 6,536.69 mi (10,519.78 km) |
| Concord to Kavarna | 6,513.25 mi (10,482.06 km) |
| Concord to Kazanlak | 6,504.19 mi (10,467.48 km) |
| Concord to Knezha | 6,420.39 mi (10,332.62 km) |
| Concord to Kostinbrod | 6,443.21 mi (10,369.34 km) |
| Concord to Kozloduy | 6,395.10 mi (10,291.91 km) |
| Concord to Kyustendil | 6,463.74 mi (10,402.39 km) |
| Concord to Levski | 6,451.58 mi (10,382.81 km) |
| Concord to Lom | 6,381.43 mi (10,269.92 km) |
| Concord to Lovech | 6,457.02 mi (10,391.57 km) |
| Concord to Lukovit | 6,440.85 mi (10,365.55 km) |
| Concord to Lyaskovets | 6,480.74 mi (10,429.75 km) |
| Concord to Mezdra | 6,433.55 mi (10,353.80 km) |
| Concord to Momchilgrad | 6,572.28 mi (10,577.06 km) |
