| Porthcawl to Chickasha (Oklahoma) | 4,540.08 mi (7,306.55 km) |
| Porthcawl to Chico (California) | 5,116.87 mi (8,234.81 km) |
| Porthcawl to Chicopee (Massachusetts) | 3,195.11 mi (5,142.03 km) |
| Porthcawl to Chillicothe (Ohio) | 3,742.87 mi (6,023.57 km) |
| Porthcawl to Chillum (Maryland) | 3,513.89 mi (5,655.06 km) |
| Porthcawl to Chino (California) | 5,309.91 mi (8,545.47 km) |
| Porthcawl to Chino Hills (California) | 5,313.76 mi (8,551.66 km) |
| Porthcawl to Chino Valley (Arizona) | 5,087.35 mi (8,187.30 km) |
| Porthcawl to Chippewa Falls (Wisconsin) | 3,815.92 mi (6,141.13 km) |
| Porthcawl to Choctaw (Oklahoma) | 4,491.67 mi (7,228.65 km) |
| Porthcawl to Chowchilla (California) | 5,217.73 mi (8,397.13 km) |
| Porthcawl to Christiansburg (Virginia) | 3,737.41 mi (6,014.78 km) |
| Porthcawl to Chubbuck (Idaho) | 4,649.14 mi (7,482.08 km) |
| Porthcawl to Chula Vista (California) | 5,363.88 mi (8,632.34 km) |
| Porthcawl to Cibolo (Texas) | 4,831.07 mi (7,774.85 km) |
