| Illertissen to Karlovo | 809.26 mi (1,302.38 km) |
| Illertissen to Karnobat | 903.21 mi (1,453.58 km) |
| Illertissen to Kavarna | 936.00 mi (1,506.35 km) |
| Illertissen to Kazanlak | 835.51 mi (1,344.62 km) |
| Illertissen to Knezha | 746.86 mi (1,201.95 km) |
| Illertissen to Kostinbrod | 735.77 mi (1,184.11 km) |
| Illertissen to Kozloduy | 721.87 mi (1,161.74 km) |
| Illertissen to Kyustendil | 735.92 mi (1,184.36 km) |
| Illertissen to Levski | 796.96 mi (1,282.58 km) |
| Illertissen to Lom | 699.01 mi (1,124.95 km) |
| Illertissen to Lovech | 787.18 mi (1,266.85 km) |
| Illertissen to Lukovit | 761.22 mi (1,225.06 km) |
| Illertissen to Lyaskovets | 831.61 mi (1,338.34 km) |
| Illertissen to Mezdra | 743.21 mi (1,196.08 km) |
| Illertissen to Momchilgrad | 879.02 mi (1,414.64 km) |
