| Delaware to Cognac | 4,006.96 mi (6,448.58 km) |
| Delaware to Cogolin | 4,384.35 mi (7,055.93 km) |
| Delaware to Colmar | 4,248.58 mi (6,837.42 km) |
| Delaware to Colombes | 4,015.14 mi (6,461.74 km) |
| Delaware to Colomiers | 4,146.48 mi (6,673.12 km) |
| Delaware to Combs-la-Ville | 4,035.51 mi (6,494.52 km) |
| Delaware to Comines | 3,989.43 mi (6,420.36 km) |
| Delaware to Compiegne | 4,023.10 mi (6,474.55 km) |
| Delaware to Concarneau | 3,789.19 mi (6,098.11 km) |
| Delaware to Conde-sur-l'Escaut | 4,021.86 mi (6,472.55 km) |
| Delaware to Conflans-Sainte-Honorine | 4,006.56 mi (6,447.94 km) |
| Delaware to Corbas | 4,230.39 mi (6,808.16 km) |
| Delaware to Corbeil-Essonnes | 4,034.07 mi (6,492.21 km) |
| Delaware to Cormeilles-en-Parisis | 4,011.53 mi (6,455.93 km) |
| Delaware to Cosne sur Loire | 4,090.28 mi (6,582.67 km) |
