| Glenmont to Duluth (Minnesota) | 928.36 mi (1,494.04 km) |
| Glenmont to Dumas (Texas) | 1,379.89 mi (2,220.72 km) |
| Glenmont to Dumont (New Jersey) | 207.15 mi (333.37 km) |
| Glenmont to Duncan (Oklahoma) | 1,193.46 mi (1,920.68 km) |
| Glenmont to Duncanville (Texas) | 1,194.55 mi (1,922.44 km) |
| Glenmont to Dundalk (Maryland) | 32.68 mi (52.59 km) |
| Glenmont to Dunedin (Florida) | 830.62 mi (1,336.76 km) |
| Glenmont to Dunkirk (New York) | 264.21 mi (425.21 km) |
| Glenmont to Dunmore (Pennsylvania) | 178.95 mi (287.99 km) |
| Glenmont to Dunwoody (Georgia) | 536.64 mi (863.64 km) |
| Glenmont to Durango (Colorado) | 1,671.41 mi (2,689.88 km) |
| Glenmont to Durant (Oklahoma) | 1,127.20 mi (1,814.05 km) |
| Glenmont to Durham (North Carolina) | 236.50 mi (380.60 km) |
| Glenmont to Dyer (Indiana) | 575.97 mi (926.93 km) |
| Glenmont to Dyersburg (Tennessee) | 706.30 mi (1,136.67 km) |
