| Solothurn to Campo de Criptana | 759.20 mi (1,221.81 km) |
| Solothurn to Campos del Puerto | 583.60 mi (939.21 km) |
| Solothurn to Canals | 701.41 mi (1,128.82 km) |
| Solothurn to Candelaria | 1,830.14 mi (2,945.32 km) |
| Solothurn to Canet de Mar | 458.90 mi (738.53 km) |
| Solothurn to Cangas | 868.61 mi (1,397.90 km) |
| Solothurn to Cangas de Narcea | 738.66 mi (1,188.76 km) |
| Solothurn to Canovellas | 465.41 mi (749.01 km) |
| Solothurn to Canteras | 793.77 mi (1,277.44 km) |
| Solothurn to Cantillana | 948.98 mi (1,527.23 km) |
| Solothurn to Capdepera | 558.37 mi (898.61 km) |
| Solothurn to Carballo | 834.40 mi (1,342.84 km) |
| Solothurn to Carcagente | 688.10 mi (1,107.39 km) |
| Solothurn to Cardedeu | 461.93 mi (743.41 km) |
| Solothurn to Carlet | 684.21 mi (1,101.13 km) |
