| Detroit to Coudekerque-Branche | 3,862.73 mi (6,216.47 km) |
| Detroit to Coueron | 3,817.75 mi (6,144.07 km) |
| Detroit to Coulommiers | 3,961.74 mi (6,375.80 km) |
| Detroit to Courbevoic | 3,925.88 mi (6,318.09 km) |
| Detroit to Courcouronnes | 3,941.97 mi (6,343.99 km) |
| Detroit to Cournon-d'Auvergne | 4,071.80 mi (6,552.93 km) |
| Detroit to Courrieres | 3,902.40 mi (6,280.30 km) |
| Detroit to Coutras | 3,956.23 mi (6,366.94 km) |
| Detroit to Couzeix | 3,985.55 mi (6,414.12 km) |
| Detroit to Cran-Gevrier | 4,185.57 mi (6,736.03 km) |
| Detroit to Craponne | 4,134.76 mi (6,654.26 km) |
| Detroit to Creil | 3,923.22 mi (6,313.81 km) |
| Detroit to Crepy-en-Valois | 3,940.04 mi (6,340.87 km) |
| Detroit to Crest | 4,184.07 mi (6,733.61 km) |
| Detroit to Creteil | 3,937.78 mi (6,337.24 km) |
