| Solothurn to Cognac | 388.53 mi (625.27 km) |
| Solothurn to Cogolin | 278.21 mi (447.73 km) |
| Solothurn to Colmar | 60.34 mi (97.10 km) |
| Solothurn to Colombes | 270.77 mi (435.76 km) |
| Solothurn to Colomiers | 390.03 mi (627.69 km) |
| Solothurn to Combs-la-Ville | 251.07 mi (404.05 km) |
| Solothurn to Comines | 319.37 mi (513.97 km) |
| Solothurn to Compiegne | 264.32 mi (425.39 km) |
| Solothurn to Concarneau | 535.54 mi (861.88 km) |
| Solothurn to Conde-sur-l'Escaut | 286.34 mi (460.81 km) |
| Solothurn to Conflans-Sainte-Honorine | 279.27 mi (449.44 km) |
| Solothurn to Corbas | 164.74 mi (265.12 km) |
| Solothurn to Corbeil-Essonnes | 252.99 mi (407.15 km) |
| Solothurn to Cormeilles-en-Parisis | 274.29 mi (441.43 km) |
| Solothurn to Cosne sur Loire | 216.25 mi (348.03 km) |
