| Solothurn to Cividale del Friuli | 290.15 mi (466.95 km) |
| Solothurn to Civita Castellana | 415.55 mi (668.76 km) |
| Solothurn to Civitanova Marche | 404.93 mi (651.68 km) |
| Solothurn to Civitavecchia | 410.89 mi (661.26 km) |
| Solothurn to Civitella in Val di Chiana | 331.93 mi (534.19 km) |
| Solothurn to Clusone | 147.21 mi (236.91 km) |
| Solothurn to Coccaglio | 163.16 mi (262.59 km) |
| Solothurn to Codigoro | 274.64 mi (441.99 km) |
| Solothurn to Codogno | 176.01 mi (283.26 km) |
| Solothurn to Codroipo | 272.65 mi (438.78 km) |
| Solothurn to Cogoleto | 202.56 mi (325.99 km) |
| Solothurn to Colle di Val d'Elsa | 316.37 mi (509.16 km) |
| Solothurn to Colle Salvetti | 287.91 mi (463.34 km) |
| Solothurn to Collecchio | 213.62 mi (343.78 km) |
| Solothurn to Colleferro | 465.17 mi (748.61 km) |
