| Guardiagrele to Red Bank (New Jersey) | 4,362.61 mi (7,020.94 km) |
| Guardiagrele to Red Bank (Tennessee) | 5,069.33 mi (8,158.30 km) |
| Guardiagrele to Red Bluff (California) | 6,127.25 mi (9,860.86 km) |
| Guardiagrele to Red Hill (South Carolina) | 4,850.14 mi (7,805.55 km) |
| Guardiagrele to Red Oak (Texas) | 5,673.38 mi (9,130.42 km) |
| Guardiagrele to Red Wing (Minnesota) | 4,933.87 mi (7,940.29 km) |
| Guardiagrele to Redan (Georgia) | 5,081.34 mi (8,177.62 km) |
| Guardiagrele to Redding (California) | 6,107.02 mi (9,828.30 km) |
| Guardiagrele to Redland (Maryland) | 4,544.80 mi (7,314.15 km) |
| Guardiagrele to Redlands (California) | 6,335.94 mi (10,196.71 km) |
| Guardiagrele to Redmond (Oregon) | 5,857.37 mi (9,426.52 km) |
| Guardiagrele to Redmond (Washington) | 5,679.04 mi (9,139.54 km) |
| Guardiagrele to Redondo Beach (California) | 6,385.15 mi (10,275.91 km) |
| Guardiagrele to Redwood City (California) | 6,285.51 mi (10,115.55 km) |
| Guardiagrele to Reedley (California) | 6,258.53 mi (10,072.14 km) |
