| Fort Thomas to Des Plaines (Illinois) | 272.80 mi (439.03 km) |
| Fort Thomas to Desert Hot Springs (California) | 1,807.02 mi (2,908.11 km) |
| Fort Thomas to DeSoto (Texas) | 825.72 mi (1,328.87 km) |
| Fort Thomas to Destin (Florida) | 610.88 mi (983.11 km) |
| Fort Thomas to Destrehan (Louisiana) | 713.90 mi (1,148.91 km) |
| Fort Thomas to Detroit (Michigan) | 238.91 mi (384.49 km) |
| Fort Thomas to Diamond Bar (California) | 1,874.22 mi (3,016.27 km) |
| Fort Thomas to Diamond Springs (California) | 1,943.90 mi (3,128.40 km) |
| Fort Thomas to Dickinson (North Dakota) | 1,068.84 mi (1,720.13 km) |
| Fort Thomas to Dickinson (Texas) | 898.17 mi (1,445.47 km) |
| Fort Thomas to Dickson (Tennessee) | 262.48 mi (422.42 km) |
| Fort Thomas to Difficult Run (Virginia) | 381.64 mi (614.19 km) |
| Fort Thomas to Dinuba (California) | 1,903.85 mi (3,063.96 km) |
| Fort Thomas to Discovery Bay (California) | 1,996.44 mi (3,212.95 km) |
| Fort Thomas to Dix Hills (New York) | 600.24 mi (966.00 km) |
