| Issum to Karlovo | 1,056.13 mi (1,699.68 km) |
| Issum to Karnobat | 1,140.33 mi (1,835.18 km) |
| Issum to Kavarna | 1,159.84 mi (1,866.58 km) |
| Issum to Kazanlak | 1,079.89 mi (1,737.92 km) |
| Issum to Knezha | 989.70 mi (1,592.76 km) |
| Issum to Kostinbrod | 988.63 mi (1,591.05 km) |
| Issum to Kozloduy | 963.70 mi (1,550.93 km) |
| Issum to Kyustendil | 995.07 mi (1,601.41 km) |
| Issum to Levski | 1,036.01 mi (1,667.30 km) |
| Issum to Lom | 942.90 mi (1,517.46 km) |
| Issum to Lovech | 1,030.32 mi (1,658.14 km) |
| Issum to Lukovit | 1,006.39 mi (1,619.63 km) |
| Issum to Lyaskovets | 1,070.39 mi (1,722.62 km) |
| Issum to Mezdra | 991.04 mi (1,594.93 km) |
| Issum to Momchilgrad | 1,131.33 mi (1,820.69 km) |
