| Delaware to Coudekerque-Branche | 3,957.32 mi (6,368.70 km) |
| Delaware to Coueron | 3,901.29 mi (6,278.51 km) |
| Delaware to Coulommiers | 4,052.24 mi (6,521.46 km) |
| Delaware to Courbevoic | 4,015.97 mi (6,463.07 km) |
| Delaware to Courcouronnes | 4,031.61 mi (6,488.26 km) |
| Delaware to Cournon-d'Auvergne | 4,156.04 mi (6,688.49 km) |
| Delaware to Courrieres | 3,996.18 mi (6,431.24 km) |
| Delaware to Coutras | 4,036.21 mi (6,495.65 km) |
| Delaware to Couzeix | 4,068.47 mi (6,547.56 km) |
| Delaware to Cran-Gevrier | 4,272.54 mi (6,875.99 km) |
| Delaware to Craponne | 4,220.27 mi (6,791.86 km) |
| Delaware to Creil | 4,014.22 mi (6,460.26 km) |
| Delaware to Crepy-en-Valois | 4,031.27 mi (6,487.70 km) |
| Delaware to Crest | 4,267.77 mi (6,868.31 km) |
| Delaware to Creteil | 4,027.79 mi (6,482.10 km) |
