| Darby to Red Bank (New Jersey) | 69.62 mi (112.04 km) |
| Darby to Red Bank (Tennessee) | 641.95 mi (1,033.12 km) |
| Darby to Red Bluff (California) | 2,455.05 mi (3,951.03 km) |
| Darby to Red Hill (South Carolina) | 472.27 mi (760.05 km) |
| Darby to Red Oak (Texas) | 1,299.94 mi (2,092.05 km) |
| Darby to Red Wing (Minnesota) | 941.36 mi (1,514.97 km) |
| Darby to Redan (Georgia) | 651.20 mi (1,048.00 km) |
| Darby to Redding (California) | 2,454.26 mi (3,949.75 km) |
| Darby to Redland (Maryland) | 114.25 mi (183.86 km) |
| Darby to Redlands (California) | 2,326.62 mi (3,744.34 km) |
| Darby to Redmond (Oregon) | 2,342.53 mi (3,769.93 km) |
| Darby to Redmond (Washington) | 2,359.40 mi (3,797.09 km) |
| Darby to Redondo Beach (California) | 2,395.52 mi (3,855.21 km) |
| Darby to Redwood City (California) | 2,508.24 mi (4,036.62 km) |
| Darby to Reedley (California) | 2,383.75 mi (3,836.28 km) |
