| Rapid City to Decatur (Alabama) | 1,084.44 mi (1,745.24 km) |
| Rapid City to Decatur (Georgia) | 1,236.67 mi (1,990.23 km) |
| Rapid City to Decatur (Illinois) | 788.33 mi (1,268.70 km) |
| Rapid City to Deer Park (New York) | 1,533.50 mi (2,467.93 km) |
| Rapid City to Deer Park (Texas) | 1,088.63 mi (1,751.98 km) |
| Rapid City to Deerfield (Illinois) | 785.02 mi (1,263.37 km) |
| Rapid City to Deerfield Beach (Florida) | 1,779.15 mi (2,863.26 km) |
| Rapid City to Defiance (Ohio) | 974.69 mi (1,568.60 km) |
| Rapid City to DeForest (Wisconsin) | 695.37 mi (1,119.09 km) |
| Rapid City to DeKalb (Illinois) | 745.05 mi (1,199.05 km) |
| Rapid City to Del Aire (California) | 1,071.16 mi (1,723.87 km) |
| Rapid City to Del City (Oklahoma) | 669.81 mi (1,077.96 km) |
| Rapid City to Del Rio (Texas) | 1,023.84 mi (1,647.71 km) |
| Rapid City to DeLand (Florida) | 1,591.91 mi (2,561.93 km) |
| Rapid City to Delano (California) | 1,022.82 mi (1,646.08 km) |
