| Detroit to Cognac | 3,925.71 mi (6,317.82 km) |
| Detroit to Cogolin | 4,302.25 mi (6,923.81 km) |
| Detroit to Colmar | 4,156.36 mi (6,689.02 km) |
| Detroit to Colombes | 3,925.00 mi (6,316.67 km) |
| Detroit to Colomiers | 4,068.34 mi (6,547.35 km) |
| Detroit to Combs-la-Ville | 3,945.68 mi (6,349.95 km) |
| Detroit to Comines | 3,894.98 mi (6,268.36 km) |
| Detroit to Compiegne | 3,931.54 mi (6,327.20 km) |
| Detroit to Concarneau | 3,705.76 mi (5,963.84 km) |
| Detroit to Conde-sur-l'Escaut | 3,927.66 mi (6,320.96 km) |
| Detroit to Conflans-Sainte-Honorine | 3,916.37 mi (6,302.79 km) |
| Detroit to Corbas | 4,144.90 mi (6,670.57 km) |
| Detroit to Corbeil-Essonnes | 3,944.41 mi (6,347.92 km) |
| Detroit to Cormeilles-en-Parisis | 3,921.32 mi (6,310.75 km) |
| Detroit to Cosne sur Loire | 4,002.80 mi (6,441.88 km) |
