| Herndon to Reidsville (North Carolina) | 220.69 mi (355.17 km) |
| Herndon to Reisterstown (Maryland) | 45.42 mi (73.10 km) |
| Herndon to Rendon (Texas) | 1,193.90 mi (1,921.39 km) |
| Herndon to Reno (Nevada) | 2,250.47 mi (3,621.79 km) |
| Herndon to Renton (Washington) | 2,296.90 mi (3,696.51 km) |
| Herndon to Republic (Missouri) | 881.47 mi (1,418.59 km) |
| Herndon to Reston (Virginia) | 2.59 mi (4.17 km) |
| Herndon to Revere (Massachusetts) | 410.40 mi (660.48 km) |
| Herndon to Rexburg (Idaho) | 1,801.01 mi (2,898.44 km) |
| Herndon to Reynoldsburg (Ohio) | 296.38 mi (476.97 km) |
| Herndon to Rialto (California) | 2,227.66 mi (3,585.07 km) |
| Herndon to Richardson (Texas) | 1,154.39 mi (1,857.81 km) |
| Herndon to Richfield (Minnesota) | 911.27 mi (1,466.54 km) |
| Herndon to Richfield (Wisconsin) | 636.71 mi (1,024.69 km) |
| Herndon to Richland (Washington) | 2,162.80 mi (3,480.68 km) |
