| Glenmont to Decatur (Alabama) | 631.13 mi (1,015.71 km) |
| Glenmont to Decatur (Georgia) | 544.16 mi (875.74 km) |
| Glenmont to Decatur (Illinois) | 635.96 mi (1,023.47 km) |
| Glenmont to Deer Park (New York) | 229.40 mi (369.19 km) |
| Glenmont to Deer Park (Texas) | 1,213.70 mi (1,953.26 km) |
| Glenmont to Deerfield (Illinois) | 605.16 mi (973.91 km) |
| Glenmont to Deerfield Beach (Florida) | 899.81 mi (1,448.10 km) |
| Glenmont to Defiance (Ohio) | 415.33 mi (668.41 km) |
| Glenmont to DeForest (Wisconsin) | 700.44 mi (1,127.25 km) |
| Glenmont to DeKalb (Illinois) | 645.16 mi (1,038.29 km) |
| Glenmont to Del Aire (California) | 2,302.77 mi (3,705.94 km) |
| Glenmont to Del City (Oklahoma) | 1,146.45 mi (1,845.03 km) |
| Glenmont to Del Rio (Texas) | 1,511.30 mi (2,432.20 km) |
| Glenmont to DeLand (Florida) | 735.18 mi (1,183.16 km) |
| Glenmont to Delano (California) | 2,307.12 mi (3,712.95 km) |
