| Sonderborg to Cogolin | 818.90 mi (1,317.89 km) |
| Sonderborg to Colmar | 483.47 mi (778.07 km) |
| Sonderborg to Colombes | 523.35 mi (842.26 km) |
| Sonderborg to Colomiers | 867.40 mi (1,395.94 km) |
| Sonderborg to Combs-la-Ville | 530.10 mi (853.11 km) |
| Sonderborg to Comines | 402.78 mi (648.21 km) |
| Sonderborg to Compiegne | 480.75 mi (773.70 km) |
| Sonderborg to Concarneau | 763.13 mi (1,228.15 km) |
| Sonderborg to Conde-sur-l'Escaut | 402.97 mi (648.52 km) |
| Sonderborg to Conflans-Sainte-Honorine | 523.13 mi (841.89 km) |
| Sonderborg to Corbas | 673.89 mi (1,084.52 km) |
| Sonderborg to Corbeil-Essonnes | 535.29 mi (861.46 km) |
| Sonderborg to Cormeilles-en-Parisis | 521.84 mi (839.81 km) |
| Sonderborg to Cosne sur Loire | 597.11 mi (960.96 km) |
| Sonderborg to Coudekerque-Branche | 408.29 mi (657.07 km) |
