| Solothurn to Karis | 1,100.62 mi (1,771.27 km) |
| Solothurn to Karkkila | 1,136.86 mi (1,829.60 km) |
| Solothurn to Kauhajoki | 1,195.69 mi (1,924.28 km) |
| Solothurn to Kauhava | 1,249.56 mi (2,010.97 km) |
| Solothurn to Kauniainen | 1,133.58 mi (1,824.33 km) |
| Solothurn to Kemi | 1,424.25 mi (2,292.12 km) |
| Solothurn to Kemijarvi | 1,526.11 mi (2,456.03 km) |
| Solothurn to Kempele | 1,394.15 mi (2,243.66 km) |
| Solothurn to Kerava | 1,151.41 mi (1,853.02 km) |
| Solothurn to Keuruu | 1,236.20 mi (1,989.47 km) |
| Solothurn to Kiiminki | 1,410.99 mi (2,270.76 km) |
| Solothurn to Kirkkonummi | 1,121.00 mi (1,804.07 km) |
| Solothurn to Kitee | 1,354.38 mi (2,179.66 km) |
| Solothurn to Kiuruvesi | 1,348.03 mi (2,169.44 km) |
| Solothurn to Kivisto | 1,141.51 mi (1,837.08 km) |
