| Cwmbran to Red Bank (New Jersey) | 3,357.79 mi (5,403.85 km) |
| Cwmbran to Red Bank (Tennessee) | 4,056.75 mi (6,528.71 km) |
| Cwmbran to Red Bluff (California) | 5,117.54 mi (8,235.88 km) |
| Cwmbran to Red Hill (South Carolina) | 3,861.18 mi (6,213.98 km) |
| Cwmbran to Red Oak (Texas) | 4,644.10 mi (7,473.96 km) |
| Cwmbran to Red Wing (Minnesota) | 3,895.32 mi (6,268.91 km) |
| Cwmbran to Redan (Georgia) | 4,076.55 mi (6,560.57 km) |
| Cwmbran to Redding (California) | 5,098.58 mi (8,205.37 km) |
| Cwmbran to Redland (Maryland) | 3,537.52 mi (5,693.09 km) |
| Cwmbran to Redlands (California) | 5,304.43 mi (8,536.65 km) |
| Cwmbran to Redmond (Oregon) | 4,854.84 mi (7,813.10 km) |
| Cwmbran to Redmond (Washington) | 4,689.34 mi (7,546.77 km) |
| Cwmbran to Redondo Beach (California) | 5,355.26 mi (8,618.46 km) |
| Cwmbran to Redwood City (California) | 5,269.92 mi (8,481.12 km) |
| Cwmbran to Reedley (California) | 5,234.80 mi (8,424.59 km) |
