| Fallbrook to Decatur (Alabama) | 1,728.03 mi (2,781.00 km) |
| Fallbrook to Decatur (Georgia) | 1,887.77 mi (3,038.07 km) |
| Fallbrook to Decatur (Illinois) | 1,624.13 mi (2,613.79 km) |
| Fallbrook to Deer Park (New York) | 2,447.54 mi (3,938.94 km) |
| Fallbrook to Deer Park (Texas) | 1,324.10 mi (2,130.93 km) |
| Fallbrook to Deerfield (Illinois) | 1,705.22 mi (2,744.29 km) |
| Fallbrook to Deerfield Beach (Florida) | 2,263.96 mi (3,643.49 km) |
| Fallbrook to Defiance (Ohio) | 1,873.72 mi (3,015.46 km) |
| Fallbrook to DeForest (Wisconsin) | 1,648.10 mi (2,652.36 km) |
| Fallbrook to DeKalb (Illinois) | 1,656.94 mi (2,666.59 km) |
| Fallbrook to Del Aire (California) | 75.87 mi (122.10 km) |
| Fallbrook to Del City (Oklahoma) | 1,135.00 mi (1,826.61 km) |
| Fallbrook to Del Rio (Texas) | 1,001.83 mi (1,612.30 km) |
| Fallbrook to DeLand (Florida) | 2,134.60 mi (3,435.30 km) |
| Fallbrook to Delano (California) | 202.14 mi (325.31 km) |
