| Key West to Decatur (Alabama) | 758.86 mi (1,221.27 km) |
| Key West to Decatur (Georgia) | 653.96 mi (1,052.45 km) |
| Key West to Decatur (Illinois) | 1,135.33 mi (1,827.13 km) |
| Key West to Deer Park (New York) | 1,220.95 mi (1,964.94 km) |
| Key West to Deer Park (Texas) | 892.56 mi (1,436.43 km) |
| Key West to Deerfield (Illinois) | 1,264.73 mi (2,035.39 km) |
| Key West to Deerfield Beach (Florida) | 158.31 mi (254.78 km) |
| Key West to Defiance (Ohio) | 1,164.60 mi (1,874.24 km) |
| Key West to DeForest (Wisconsin) | 1,359.24 mi (2,187.48 km) |
| Key West to DeKalb (Illinois) | 1,264.60 mi (2,035.18 km) |
| Key West to Del Aire (California) | 2,285.32 mi (3,677.86 km) |
| Key West to Del City (Oklahoma) | 1,198.82 mi (1,929.31 km) |
| Key West to Del Rio (Texas) | 1,220.65 mi (1,964.44 km) |
| Key West to DeLand (Florida) | 309.52 mi (498.12 km) |
| Key West to Delano (California) | 2,352.56 mi (3,786.08 km) |
