| Herndon to Red Bank (New Jersey) | 200.59 mi (322.81 km) |
| Herndon to Red Bank (Tennessee) | 510.92 mi (822.25 km) |
| Herndon to Red Bluff (California) | 2,364.64 mi (3,805.52 km) |
| Herndon to Red Hill (South Carolina) | 369.93 mi (595.35 km) |
| Herndon to Red Oak (Texas) | 1,172.59 mi (1,887.10 km) |
| Herndon to Red Wing (Minnesota) | 872.84 mi (1,404.69 km) |
| Herndon to Redan (Georgia) | 522.04 mi (840.14 km) |
| Herndon to Redding (California) | 2,365.03 mi (3,806.15 km) |
| Herndon to Redland (Maryland) | 17.17 mi (27.62 km) |
| Herndon to Redlands (California) | 2,217.58 mi (3,568.85 km) |
| Herndon to Redmond (Oregon) | 2,264.17 mi (3,643.83 km) |
| Herndon to Redmond (Washington) | 2,292.99 mi (3,690.21 km) |
| Herndon to Redondo Beach (California) | 2,286.91 mi (3,680.43 km) |
| Herndon to Redwood City (California) | 2,410.72 mi (3,879.67 km) |
| Herndon to Reedley (California) | 2,282.20 mi (3,672.84 km) |
