| Glenmont to Reidsville (North Carolina) | 237.13 mi (381.62 km) |
| Glenmont to Reisterstown (Maryland) | 29.38 mi (47.29 km) |
| Glenmont to Rendon (Texas) | 1,213.33 mi (1,952.67 km) |
| Glenmont to Reno (Nevada) | 2,266.36 mi (3,647.36 km) |
| Glenmont to Renton (Washington) | 2,309.36 mi (3,716.55 km) |
| Glenmont to Republic (Missouri) | 900.09 mi (1,448.55 km) |
| Glenmont to Reston (Virginia) | 18.09 mi (29.11 km) |
| Glenmont to Revere (Massachusetts) | 391.75 mi (630.47 km) |
| Glenmont to Rexburg (Idaho) | 1,815.39 mi (2,921.58 km) |
| Glenmont to Reynoldsburg (Ohio) | 312.40 mi (502.76 km) |
| Glenmont to Rialto (California) | 2,245.38 mi (3,613.59 km) |
| Glenmont to Richardson (Texas) | 1,173.81 mi (1,889.06 km) |
| Glenmont to Richfield (Minnesota) | 923.26 mi (1,485.85 km) |
| Glenmont to Richfield (Wisconsin) | 648.94 mi (1,044.37 km) |
| Glenmont to Richland (Washington) | 2,175.86 mi (3,501.71 km) |
