| Sankt Gallen to Karlovo | 821.07 mi (1,321.38 km) |
| Sankt Gallen to Karnobat | 919.03 mi (1,479.03 km) |
| Sankt Gallen to Kavarna | 957.16 mi (1,540.40 km) |
| Sankt Gallen to Kazanlak | 848.38 mi (1,365.33 km) |
| Sankt Gallen to Knezha | 761.33 mi (1,225.24 km) |
| Sankt Gallen to Kostinbrod | 744.93 mi (1,198.84 km) |
| Sankt Gallen to Kozloduy | 737.11 mi (1,186.26 km) |
| Sankt Gallen to Kyustendil | 741.12 mi (1,192.72 km) |
| Sankt Gallen to Levski | 812.76 mi (1,308.02 km) |
| Sankt Gallen to Lom | 713.48 mi (1,148.23 km) |
| Sankt Gallen to Lovech | 801.11 mi (1,289.25 km) |
| Sankt Gallen to Lukovit | 774.36 mi (1,246.21 km) |
| Sankt Gallen to Lyaskovets | 847.24 mi (1,363.50 km) |
| Sankt Gallen to Mezdra | 755.12 mi (1,215.25 km) |
| Sankt Gallen to Momchilgrad | 887.28 mi (1,427.93 km) |
