| Porthcawl to River Ridge (Louisiana) | 4,487.78 mi (7,222.38 km) |
| Porthcawl to Riverbank (California) | 5,205.16 mi (8,376.89 km) |
| Porthcawl to Riverdale (Georgia) | 4,070.95 mi (6,551.56 km) |
| Porthcawl to Riverdale (Illinois) | 3,822.31 mi (6,151.41 km) |
| Porthcawl to Riverside (California) | 5,303.39 mi (8,534.98 km) |
| Porthcawl to Riverside (Ohio) | 3,768.06 mi (6,064.10 km) |
| Porthcawl to Riverton (Utah) | 4,761.14 mi (7,662.31 km) |
| Porthcawl to Riverton (Wyoming) | 4,509.82 mi (7,257.85 km) |
| Porthcawl to Riverview (Florida) | 4,263.80 mi (6,861.92 km) |
| Porthcawl to Riverview (Michigan) | 3,624.49 mi (5,833.05 km) |
| Porthcawl to Riviera Beach (Florida) | 4,220.98 mi (6,793.01 km) |
| Porthcawl to Riviera Beach (Maryland) | 3,486.53 mi (5,611.03 km) |
| Porthcawl to Roanoke (Virginia) | 3,712.73 mi (5,975.07 km) |
| Porthcawl to Roanoke Rapids (North Carolina) | 3,654.99 mi (5,882.14 km) |
| Porthcawl to Robbinsdale (Minnesota) | 3,883.37 mi (6,249.68 km) |
