| Porthcawl to Reidsville (North Carolina) | 3,744.09 mi (6,025.53 km) |
| Porthcawl to Reisterstown (Maryland) | 3,485.59 mi (5,609.51 km) |
| Porthcawl to Rendon (Texas) | 4,637.39 mi (7,463.16 km) |
| Porthcawl to Reno (Nevada) | 5,068.17 mi (8,156.44 km) |
| Porthcawl to Renton (Washington) | 4,693.33 mi (7,553.18 km) |
| Porthcawl to Republic (Missouri) | 4,260.92 mi (6,857.29 km) |
| Porthcawl to Reston (Virginia) | 3,529.79 mi (5,680.65 km) |
| Porthcawl to Revere (Massachusetts) | 3,120.53 mi (5,022.01 km) |
| Porthcawl to Rexburg (Idaho) | 4,580.06 mi (7,370.90 km) |
| Porthcawl to Reynoldsburg (Ohio) | 3,706.87 mi (5,965.63 km) |
| Porthcawl to Rialto (California) | 5,293.15 mi (8,518.50 km) |
| Porthcawl to Richardson (Texas) | 4,596.75 mi (7,397.76 km) |
| Porthcawl to Richfield (Minnesota) | 3,888.39 mi (6,257.75 km) |
| Porthcawl to Richfield (Wisconsin) | 3,773.69 mi (6,073.16 km) |
| Porthcawl to Richland (Washington) | 4,677.53 mi (7,527.76 km) |
