| Slidell to Decatur (Alabama) | 337.81 mi (543.66 km) |
| Slidell to Decatur (Georgia) | 401.35 mi (645.91 km) |
| Slidell to Decatur (Illinois) | 662.75 mi (1,066.59 km) |
| Slidell to Deer Park (New York) | 1,171.51 mi (1,885.36 km) |
| Slidell to Deer Park (Texas) | 321.74 mi (517.79 km) |
| Slidell to Deerfield (Illinois) | 827.56 mi (1,331.84 km) |
| Slidell to Deerfield Beach (Florida) | 648.34 mi (1,043.40 km) |
| Slidell to Defiance (Ohio) | 817.50 mi (1,315.64 km) |
| Slidell to DeForest (Wisconsin) | 894.49 mi (1,439.54 km) |
| Slidell to DeKalb (Illinois) | 806.48 mi (1,297.91 km) |
| Slidell to Del Aire (California) | 1,686.27 mi (2,713.79 km) |
| Slidell to Del City (Oklahoma) | 569.39 mi (916.34 km) |
| Slidell to Del Rio (Texas) | 667.91 mi (1,074.89 km) |
| Slidell to DeLand (Florida) | 517.40 mi (832.67 km) |
| Slidell to Delano (California) | 1,742.19 mi (2,803.79 km) |
