| Echelon to Darby (Pennsylvania) | 14.94 mi (24.04 km) |
| Echelon to Dardenne Prairie (Missouri) | 843.62 mi (1,357.67 km) |
| Echelon to Darien (Illinois) | 691.09 mi (1,112.20 km) |
| Echelon to Davenport (Iowa) | 824.94 mi (1,327.62 km) |
| Echelon to Davidson (North Carolina) | 438.63 mi (705.90 km) |
| Echelon to Davie (Florida) | 999.07 mi (1,607.85 km) |
| Echelon to Davis (California) | 2,475.32 mi (3,983.64 km) |
| Echelon to Dayton (Nevada) | 2,349.58 mi (3,781.28 km) |
| Echelon to Dayton (Ohio) | 488.31 mi (785.87 km) |
| Echelon to Daytona Beach (Florida) | 813.10 mi (1,308.56 km) |
| Echelon to De Pere (Wisconsin) | 740.15 mi (1,191.15 km) |
| Echelon to De Witt (New York) | 226.92 mi (365.19 km) |
| Echelon to Dearborn (Michigan) | 460.35 mi (740.87 km) |
| Echelon to Dearborn Heights (Michigan) | 463.53 mi (745.97 km) |
| Echelon to DeBary (Florida) | 838.70 mi (1,349.76 km) |
