| Porthcawl to Caño Martin Peña (Puerto Rico) | 4,046.80 mi (6,512.70 km) |
| Porthcawl to Cañon City (Colorado) | 4,636.96 mi (7,462.46 km) |
| Porthcawl to Canóvanas (Puerto Rico) | 4,043.70 mi (6,507.71 km) |
| Porthcawl to Canton (Georgia) | 4,041.45 mi (6,504.09 km) |
| Porthcawl to Canton (Illinois) | 3,965.39 mi (6,381.68 km) |
| Porthcawl to Canton (Mississippi) | 4,348.49 mi (6,998.21 km) |
| Porthcawl to Canton (Ohio) | 3,611.65 mi (5,812.40 km) |
| Porthcawl to Canyon (Texas) | 4,693.95 mi (7,554.19 km) |
| Porthcawl to Canyon Lake (California) | 5,312.89 mi (8,550.28 km) |
| Porthcawl to Canyon Lake (Texas) | 4,816.83 mi (7,751.94 km) |
| Porthcawl to Cape Coral (Florida) | 4,309.66 mi (6,935.72 km) |
| Porthcawl to Cape Girardeau (Missouri) | 4,100.12 mi (6,598.51 km) |
| Porthcawl to Carbondale (Illinois) | 4,067.19 mi (6,545.51 km) |
| Porthcawl to Carlisle (Pennsylvania) | 3,469.08 mi (5,582.94 km) |
| Porthcawl to Carlsbad (California) | 5,345.20 mi (8,602.27 km) |
