| Solothurn to Kidricevo | 394.63 mi (635.10 km) |
| Solothurn to Kobarid | 293.93 mi (473.03 km) |
| Solothurn to Kobilje | 419.37 mi (674.91 km) |
| Solothurn to Kocevje | 365.27 mi (587.85 km) |
| Solothurn to Komen | 310.95 mi (500.43 km) |
| Solothurn to Komenda | 339.02 mi (545.60 km) |
| Solothurn to Koper | 317.04 mi (510.23 km) |
| Solothurn to Kostanjevica na Krki | 386.69 mi (622.32 km) |
| Solothurn to Kostel | 370.82 mi (596.78 km) |
| Solothurn to Kozje | 388.60 mi (625.39 km) |
| Solothurn to Kranj | 330.59 mi (532.04 km) |
| Solothurn to Kranjska Gora | 299.71 mi (482.34 km) |
| Solothurn to Krizevci | 408.68 mi (657.71 km) |
| Solothurn to Krsko | 387.35 mi (623.38 km) |
| Solothurn to Kuzma | 403.37 mi (649.16 km) |
