| Ardahan to Karlovo | 924.92 mi (1,488.52 km) |
| Ardahan to Karnobat | 814.33 mi (1,310.54 km) |
| Ardahan to Kavarna | 750.92 mi (1,208.49 km) |
| Ardahan to Kazanlak | 894.77 mi (1,439.99 km) |
| Ardahan to Knezha | 963.50 mi (1,550.61 km) |
| Ardahan to Kostinbrod | 1,005.71 mi (1,618.53 km) |
| Ardahan to Kozloduy | 982.29 mi (1,580.84 km) |
| Ardahan to Kyustendil | 1,033.55 mi (1,663.34 km) |
| Ardahan to Levski | 910.34 mi (1,465.06 km) |
| Ardahan to Lom | 1,007.16 mi (1,620.86 km) |
| Ardahan to Lovech | 930.37 mi (1,497.28 km) |
| Ardahan to Lukovit | 958.27 mi (1,542.19 km) |
| Ardahan to Lyaskovets | 879.90 mi (1,416.06 km) |
| Ardahan to Mezdra | 981.65 mi (1,579.82 km) |
| Ardahan to Momchilgrad | 895.92 mi (1,441.84 km) |
