| Glenmont to Roy (Utah) | 1,842.54 mi (2,965.28 km) |
| Glenmont to Royal Kunia (Hawaii) | 4,831.20 mi (7,775.07 km) |
| Glenmont to Royal Oak (Michigan) | 397.96 mi (640.46 km) |
| Glenmont to Royal Palm Beach (Florida) | 873.90 mi (1,406.40 km) |
| Glenmont to Royse City (Texas) | 1,153.38 mi (1,856.19 km) |
| Glenmont to Ruskin (Florida) | 843.68 mi (1,357.78 km) |
| Glenmont to Russellville (Alabama) | 669.29 mi (1,077.11 km) |
| Glenmont to Russellville (Arkansas) | 922.43 mi (1,484.51 km) |
| Glenmont to Ruston (Louisiana) | 981.56 mi (1,579.67 km) |
| Glenmont to Rutherford (New Jersey) | 197.21 mi (317.37 km) |
| Glenmont to Rutland (Vermont) | 377.93 mi (608.21 km) |
| Glenmont to Sabana Grande (Puerto Rico) | 1,571.19 mi (2,528.59 km) |
| Glenmont to Sachse (Texas) | 1,167.04 mi (1,878.17 km) |
| Glenmont to Saco (Maine) | 460.32 mi (740.81 km) |
| Glenmont to Sacramento (California) | 2,367.24 mi (3,809.71 km) |
