| Herndon to River Ridge (Louisiana) | 958.48 mi (1,542.52 km) |
| Herndon to Riverbank (California) | 2,339.03 mi (3,764.31 km) |
| Herndon to Riverdale (Georgia) | 540.60 mi (870.00 km) |
| Herndon to Riverdale (Illinois) | 570.37 mi (917.91 km) |
| Herndon to Riverside (California) | 2,232.33 mi (3,592.58 km) |
| Herndon to Riverside (Ohio) | 363.99 mi (585.79 km) |
| Herndon to Riverton (Utah) | 1,828.29 mi (2,942.35 km) |
| Herndon to Riverton (Wyoming) | 1,632.47 mi (2,627.21 km) |
| Herndon to Riverview (Florida) | 820.37 mi (1,320.26 km) |
| Herndon to Riverview (Michigan) | 376.51 mi (605.94 km) |
| Herndon to Riviera Beach (Florida) | 856.35 mi (1,378.16 km) |
| Herndon to Riviera Beach (Maryland) | 48.06 mi (77.35 km) |
| Herndon to Roanoke (Virginia) | 182.17 mi (293.18 km) |
| Herndon to Roanoke Rapids (North Carolina) | 175.03 mi (281.68 km) |
| Herndon to Robbinsdale (Minnesota) | 917.32 mi (1,476.28 km) |
