| Delaware to Cloverleaf (Texas) | 995.30 mi (1,601.79 km) |
| Delaware to Cloverly (Maryland) | 332.98 mi (535.88 km) |
| Delaware to Clovis (California) | 1,978.22 mi (3,183.64 km) |
| Delaware to Clovis (New Mexico) | 1,173.17 mi (1,888.03 km) |
| Delaware to Clute (Texas) | 1,044.66 mi (1,681.22 km) |
| Delaware to Coachella (California) | 1,869.33 mi (3,008.39 km) |
| Delaware to Coalinga (California) | 2,027.29 mi (3,262.60 km) |
| Delaware to Coamo (Puerto Rico) | 1,828.70 mi (2,943.02 km) |
| Delaware to Coatesville (Pennsylvania) | 383.64 mi (617.41 km) |
| Delaware to Cockeysville (Maryland) | 346.11 mi (557.00 km) |
| Delaware to Cocoa (Florida) | 832.80 mi (1,340.26 km) |
| Delaware to Cocoa Beach (Florida) | 837.45 mi (1,347.75 km) |
| Delaware to Coconut Creek (Florida) | 981.77 mi (1,580.00 km) |
| Delaware to Coeur d'Alene (Idaho) | 1,737.09 mi (2,795.57 km) |
| Delaware to Cohoes (New York) | 513.73 mi (826.76 km) |
