| Delaware to Cadiz | 4,029.72 mi (6,485.20 km) |
| Delaware to Calafell | 4,238.74 mi (6,821.59 km) |
| Delaware to Calahorra | 4,042.50 mi (6,505.77 km) |
| Delaware to Calasparra | 4,191.15 mi (6,745.00 km) |
| Delaware to Calatayud | 4,088.66 mi (6,580.06 km) |
| Delaware to Caldas de Montbuy | 4,250.57 mi (6,840.63 km) |
| Delaware to Caldas de Reyes | 3,728.30 mi (6,000.12 km) |
| Delaware to Calella | 4,273.29 mi (6,877.19 km) |
| Delaware to Callosa de Segura | 4,233.39 mi (6,812.98 km) |
| Delaware to Calpe | 4,258.14 mi (6,852.82 km) |
| Delaware to Calvia | 4,338.71 mi (6,982.47 km) |
| Delaware to Camas | 4,013.39 mi (6,458.92 km) |
| Delaware to Cambados | 3,723.78 mi (5,992.85 km) |
| Delaware to Cambre | 3,722.86 mi (5,991.36 km) |
| Delaware to Cambrils | 4,220.22 mi (6,791.79 km) |
