| Humacao to Red Bank (New Jersey) | 1,610.25 mi (2,591.45 km) |
| Humacao to Red Bank (Tennessee) | 1,672.89 mi (2,692.26 km) |
| Humacao to Red Bluff (California) | 3,658.28 mi (5,887.43 km) |
| Humacao to Red Hill (South Carolina) | 1,352.51 mi (2,176.66 km) |
| Humacao to Red Oak (Texas) | 2,162.17 mi (3,479.67 km) |
| Humacao to Red Wing (Minnesota) | 2,392.47 mi (3,850.31 km) |
| Humacao to Redan (Georgia) | 1,562.98 mi (2,515.37 km) |
| Humacao to Redding (California) | 3,668.25 mi (5,903.48 km) |
| Humacao to Redland (Maryland) | 1,600.91 mi (2,576.42 km) |
| Humacao to Redlands (California) | 3,332.32 mi (5,362.84 km) |
| Humacao to Redmond (Oregon) | 3,649.87 mi (5,873.89 km) |
| Humacao to Redmond (Washington) | 3,742.87 mi (6,023.57 km) |
| Humacao to Redondo Beach (California) | 3,399.88 mi (5,471.58 km) |
| Humacao to Redwood City (California) | 3,637.27 mi (5,853.62 km) |
| Humacao to Reedley (California) | 3,478.52 mi (5,598.13 km) |
