| Porthcawl to Clermont (Florida) | 4,203.93 mi (6,765.57 km) |
| Porthcawl to Cleveland (Mississippi) | 4,320.06 mi (6,952.47 km) |
| Porthcawl to Cleveland (Ohio) | 3,594.79 mi (5,785.25 km) |
| Porthcawl to Cleveland (Tennessee) | 4,012.48 mi (6,457.46 km) |
| Porthcawl to Cleveland Heights (Ohio) | 3,588.58 mi (5,775.26 km) |
| Porthcawl to Cliffside Park (New Jersey) | 3,310.00 mi (5,326.93 km) |
| Porthcawl to Clifton (Colorado) | 4,718.32 mi (7,593.40 km) |
| Porthcawl to Clifton (New Jersey) | 3,315.28 mi (5,335.42 km) |
| Porthcawl to Clinton (Iowa) | 3,913.71 mi (6,298.51 km) |
| Porthcawl to Clinton (Maryland) | 3,520.46 mi (5,665.64 km) |
| Porthcawl to Clinton (Mississippi) | 4,373.09 mi (7,037.81 km) |
| Porthcawl to Clinton (Utah) | 4,731.31 mi (7,614.31 km) |
| Porthcawl to Clive (Iowa) | 4,059.47 mi (6,533.08 km) |
| Porthcawl to Cloquet (Minnesota) | 3,776.12 mi (6,077.08 km) |
| Porthcawl to Cloverleaf (Texas) | 4,697.92 mi (7,560.58 km) |
