| Solothurn to Cookeville (Tennessee) | 4,572.88 mi (7,359.34 km) |
| Solothurn to Coolidge (Arizona) | 5,733.58 mi (9,227.31 km) |
| Solothurn to Coon Rapids (Minnesota) | 4,456.65 mi (7,172.28 km) |
| Solothurn to Cooper City (Florida) | 4,821.93 mi (7,760.14 km) |
| Solothurn to Coos Bay (Oregon) | 5,521.07 mi (8,885.31 km) |
| Solothurn to Copiague (New York) | 3,867.47 mi (6,224.09 km) |
| Solothurn to Coppell (Texas) | 5,191.81 mi (8,355.41 km) |
| Solothurn to Copperas Cove (Texas) | 5,322.30 mi (8,565.42 km) |
| Solothurn to Coral Gables (Florida) | 4,837.63 mi (7,785.41 km) |
| Solothurn to Coral Springs (Florida) | 4,810.04 mi (7,741.00 km) |
| Solothurn to Coral Terrace (Florida) | 4,837.09 mi (7,784.54 km) |
| Solothurn to Coralville (Iowa) | 4,555.76 mi (7,331.79 km) |
| Solothurn to Coram (New York) | 3,842.57 mi (6,184.01 km) |
| Solothurn to Corcoran (California) | 5,817.12 mi (9,361.75 km) |
| Solothurn to Cordele (Georgia) | 4,695.19 mi (7,556.17 km) |
