| Oro Valley to Red Bank (New Jersey) | 2,108.28 mi (3,392.94 km) |
| Oro Valley to Red Bank (Tennessee) | 1,482.56 mi (2,385.95 km) |
| Oro Valley to Red Bluff (California) | 823.65 mi (1,325.53 km) |
| Oro Valley to Red Hill (South Carolina) | 1,845.19 mi (2,969.54 km) |
| Oro Valley to Red Oak (Texas) | 826.58 mi (1,330.25 km) |
| Oro Valley to Red Wing (Minnesota) | 1,295.73 mi (2,085.28 km) |
| Oro Valley to Redan (Georgia) | 1,550.59 mi (2,495.43 km) |
| Oro Valley to Redding (California) | 845.51 mi (1,360.72 km) |
| Oro Valley to Redland (Maryland) | 1,940.19 mi (3,122.44 km) |
| Oro Valley to Redlands (California) | 375.22 mi (603.85 km) |
| Oro Valley to Redmond (Oregon) | 985.71 mi (1,586.35 km) |
| Oro Valley to Redmond (Washington) | 1,204.71 mi (1,938.79 km) |
| Oro Valley to Redondo Beach (California) | 439.36 mi (707.09 km) |
| Oro Valley to Redwood City (California) | 726.56 mi (1,169.29 km) |
| Oro Valley to Reedley (California) | 561.71 mi (903.99 km) |
