| Glenmont to Dover (New Hampshire) | 428.54 mi (689.68 km) |
| Glenmont to Dover (New Jersey) | 181.87 mi (292.70 km) |
| Glenmont to Dover (Ohio) | 256.05 mi (412.07 km) |
| Glenmont to Downers Grove (Illinois) | 606.39 mi (975.89 km) |
| Glenmont to Downey (California) | 2,289.50 mi (3,684.59 km) |
| Glenmont to Dranesville (Virginia) | 18.06 mi (29.06 km) |
| Glenmont to Draper (Utah) | 1,839.11 mi (2,959.76 km) |
| Glenmont to Drexel Heights (Arizona) | 1,956.71 mi (3,149.02 km) |
| Glenmont to Drexel Hill (Pennsylvania) | 111.02 mi (178.67 km) |
| Glenmont to Duarte (California) | 2,274.34 mi (3,660.20 km) |
| Glenmont to Dublin (California) | 2,405.64 mi (3,871.50 km) |
| Glenmont to Dublin (Georgia) | 558.64 mi (899.05 km) |
| Glenmont to Dublin (Ohio) | 332.53 mi (535.15 km) |
| Glenmont to Dubuque (Iowa) | 751.90 mi (1,210.07 km) |
| Glenmont to Duluth (Georgia) | 526.85 mi (847.88 km) |
