| Solothurn to Karditsa | 901.74 mi (1,451.20 km) |
| Solothurn to Kastoria | 824.14 mi (1,326.32 km) |
| Solothurn to Katerini | 885.81 mi (1,425.57 km) |
| Solothurn to Keratsini | 1,034.69 mi (1,665.18 km) |
| Solothurn to Kerkyra | 811.74 mi (1,306.37 km) |
| Solothurn to Kiato | 998.54 mi (1,606.99 km) |
| Solothurn to Kifisia | 1,037.17 mi (1,669.16 km) |
| Solothurn to Kilkis | 872.05 mi (1,403.42 km) |
| Solothurn to Komotini | 979.01 mi (1,575.56 km) |
| Solothurn to Korinthos | 1,008.92 mi (1,623.70 km) |
| Solothurn to Koropi | 1,048.04 mi (1,686.66 km) |
| Solothurn to Korydallos | 1,035.23 mi (1,666.04 km) |
| Solothurn to Kos | 1,233.29 mi (1,984.79 km) |
| Solothurn to Kozani | 854.71 mi (1,375.52 km) |
| Solothurn to Lagos | 962.88 mi (1,549.61 km) |
