| Porthcawl to Red Bank (New Jersey) | 3,333.44 mi (5,364.66 km) |
| Porthcawl to Red Bank (Tennessee) | 4,033.22 mi (6,490.85 km) |
| Porthcawl to Red Bluff (California) | 5,106.12 mi (8,217.51 km) |
| Porthcawl to Red Hill (South Carolina) | 3,835.84 mi (6,173.19 km) |
| Porthcawl to Red Oak (Texas) | 4,622.69 mi (7,439.51 km) |
| Porthcawl to Red Wing (Minnesota) | 3,876.87 mi (6,239.22 km) |
| Porthcawl to Redan (Georgia) | 4,052.35 mi (6,521.63 km) |
| Porthcawl to Redding (California) | 5,087.32 mi (8,187.25 km) |
| Porthcawl to Redland (Maryland) | 3,513.42 mi (5,654.30 km) |
| Porthcawl to Redlands (California) | 5,289.54 mi (8,512.69 km) |
| Porthcawl to Redmond (Oregon) | 4,844.33 mi (7,796.20 km) |
| Porthcawl to Redmond (Washington) | 4,680.24 mi (7,532.11 km) |
| Porthcawl to Redondo Beach (California) | 5,340.72 mi (8,595.05 km) |
| Porthcawl to Redwood City (California) | 5,257.72 mi (8,461.48 km) |
| Porthcawl to Reedley (California) | 5,221.40 mi (8,403.03 km) |
