| Fort Thomas to Darby (Pennsylvania) | 493.20 mi (793.73 km) |
| Fort Thomas to Dardenne Prairie (Missouri) | 338.27 mi (544.40 km) |
| Fort Thomas to Darien (Illinois) | 261.47 mi (420.80 km) |
| Fort Thomas to Davenport (Iowa) | 366.43 mi (589.71 km) |
| Fort Thomas to Davidson (North Carolina) | 318.52 mi (512.61 km) |
| Fort Thomas to Davie (Florida) | 930.14 mi (1,496.92 km) |
| Fort Thomas to Davis (California) | 1,993.26 mi (3,207.84 km) |
| Fort Thomas to Dayton (Nevada) | 1,868.96 mi (3,007.80 km) |
| Fort Thomas to Dayton (Ohio) | 50.22 mi (80.82 km) |
| Fort Thomas to Daytona Beach (Florida) | 708.95 mi (1,140.95 km) |
| Fort Thomas to De Pere (Wisconsin) | 414.16 mi (666.53 km) |
| Fort Thomas to De Witt (New York) | 514.06 mi (827.30 km) |
| Fort Thomas to Dearborn (Michigan) | 232.58 mi (374.30 km) |
| Fort Thomas to Dearborn Heights (Michigan) | 231.91 mi (373.23 km) |
| Fort Thomas to DeBary (Florida) | 726.95 mi (1,169.91 km) |
