| Cities | Distance |
|---|---|
| Solothurn to Karlovo | 899.77 mi (1,448.05 km) |
| Solothurn to Karnobat | 999.68 mi (1,608.83 km) |
| Solothurn to Kavarna | 1,040.24 mi (1,674.11 km) |
| Solothurn to Kazanlak | 927.61 mi (1,492.84 km) |
| Solothurn to Knezha | 841.64 mi (1,354.49 km) |
| Solothurn to Kostinbrod | 822.32 mi (1,323.39 km) |
| Solothurn to Kozloduy | 817.88 mi (1,316.25 km) |
| Solothurn to Kyustendil | 816.01 mi (1,313.25 km) |
| Solothurn to Levski | 893.63 mi (1,438.16 km) |
| Solothurn to Lom | 793.93 mi (1,277.70 km) |
| Solothurn to Lovech | 881.03 mi (1,417.88 km) |
| Solothurn to Lukovit | 853.93 mi (1,374.27 km) |
| Solothurn to Lyaskovets | 927.94 mi (1,493.37 km) |
| Solothurn to Mezdra | 834.08 mi (1,342.32 km) |
| Solothurn to Momchilgrad | 963.67 mi (1,550.87 km) |