| Friedrichshafen to Karlovo | 821.09 mi (1,321.41 km) |
| Friedrichshafen to Karnobat | 918.05 mi (1,477.45 km) |
| Friedrichshafen to Kavarna | 954.78 mi (1,536.57 km) |
| Friedrichshafen to Kazanlak | 848.13 mi (1,364.94 km) |
| Friedrichshafen to Knezha | 760.61 mi (1,224.09 km) |
| Friedrichshafen to Kostinbrod | 745.58 mi (1,199.90 km) |
| Friedrichshafen to Kozloduy | 736.18 mi (1,184.76 km) |
| Friedrichshafen to Kyustendil | 742.79 mi (1,195.41 km) |
| Friedrichshafen to Levski | 811.73 mi (1,306.36 km) |
| Friedrichshafen to Lom | 712.73 mi (1,147.03 km) |
| Friedrichshafen to Lovech | 800.56 mi (1,288.38 km) |
| Friedrichshafen to Lukovit | 774.00 mi (1,245.63 km) |
| Friedrichshafen to Lyaskovets | 846.27 mi (1,361.94 km) |
| Friedrichshafen to Mezdra | 755.07 mi (1,215.17 km) |
| Friedrichshafen to Momchilgrad | 888.25 mi (1,429.50 km) |
