| Delaware to Cehegin | 4,191.29 mi (6,745.22 km) |
| Delaware to Cervello | 4,249.45 mi (6,838.82 km) |
| Delaware to Cervera | 4,209.32 mi (6,774.25 km) |
| Delaware to Ceuti | 4,216.51 mi (6,785.81 km) |
| Delaware to Cheste | 4,195.32 mi (6,751.72 km) |
| Delaware to Chiclana de la Frontera | 4,040.86 mi (6,503.14 km) |
| Delaware to Chipiona | 4,016.47 mi (6,463.88 km) |
| Delaware to Chiva | 4,193.98 mi (6,749.55 km) |
| Delaware to Churriana de la Vega | 4,136.11 mi (6,656.42 km) |
| Delaware to Ciempozuelos | 4,036.46 mi (6,496.06 km) |
| Delaware to Cieza | 4,204.04 mi (6,765.75 km) |
| Delaware to Cisterniga | 3,940.42 mi (6,341.49 km) |
| Delaware to Ciudad de Melilla | 4,235.28 mi (6,816.02 km) |
| Delaware to Ciudad Real | 4,061.37 mi (6,536.14 km) |
| Delaware to Ciudad-Rodrigo | 3,886.20 mi (6,254.23 km) |
