| Delaware to Colton (California) | 1,921.61 mi (3,092.54 km) |
| Delaware to Columbia (Illinois) | 401.65 mi (646.39 km) |
| Delaware to Columbia (Maryland) | 338.51 mi (544.78 km) |
| Delaware to Columbia (Missouri) | 500.83 mi (806.00 km) |
| Delaware to Columbia (Pennsylvania) | 347.79 mi (559.71 km) |
| Delaware to Columbia (South Carolina) | 447.84 mi (720.73 km) |
| Delaware to Columbia (Tennessee) | 387.98 mi (624.39 km) |
| Delaware to Columbia Heights (Minnesota) | 612.02 mi (984.96 km) |
| Delaware to Columbine (Colorado) | 1,163.26 mi (1,872.09 km) |
| Delaware to Columbus (Georgia) | 546.45 mi (879.42 km) |
| Delaware to Columbus (Indiana) | 168.38 mi (270.98 km) |
| Delaware to Columbus (Mississippi) | 553.02 mi (889.99 km) |
| Delaware to Columbus (Nebraska) | 749.69 mi (1,206.52 km) |
| Delaware to Columbus (Ohio) | 21.18 mi (34.08 km) |
| Delaware to Commack (New York) | 515.08 mi (828.94 km) |
