| Fort Thomas to Delaware (Ohio) | 110.90 mi (178.47 km) |
| Fort Thomas to Delhi (California) | 1,960.98 mi (3,155.89 km) |
| Fort Thomas to Delray Beach (Florida) | 908.04 mi (1,461.35 km) |
| Fort Thomas to Deltona (Florida) | 726.94 mi (1,169.90 km) |
| Fort Thomas to Deming (New Mexico) | 1,385.32 mi (2,229.45 km) |
| Fort Thomas to Denison (Texas) | 766.81 mi (1,234.07 km) |
| Fort Thomas to Dent (Ohio) | 13.56 mi (21.82 km) |
| Fort Thomas to Denton (Texas) | 814.55 mi (1,310.89 km) |
| Fort Thomas to Dentsville (South Carolina) | 396.43 mi (637.99 km) |
| Fort Thomas to Denver (Colorado) | 1,088.78 mi (1,752.22 km) |
| Fort Thomas to Depew (New York) | 399.73 mi (643.30 km) |
| Fort Thomas to Derby (Connecticut) | 619.16 mi (996.44 km) |
| Fort Thomas to Derby (Kansas) | 701.38 mi (1,128.76 km) |
| Fort Thomas to Des Moines (Iowa) | 511.93 mi (823.87 km) |
| Fort Thomas to Des Moines (Washington) | 1,968.80 mi (3,168.48 km) |
