| Porthcawl to Hazleton (Pennsylvania) | 3,386.24 mi (5,449.63 km) |
| Porthcawl to Healdsburg (California) | 5,213.34 mi (8,390.06 km) |
| Porthcawl to Heath (Ohio) | 3,689.73 mi (5,938.05 km) |
| Porthcawl to Heber (Utah) | 4,742.84 mi (7,632.87 km) |
| Porthcawl to Helena (Alabama) | 4,186.13 mi (6,736.93 km) |
| Porthcawl to Helena (Montana) | 4,441.86 mi (7,148.49 km) |
| Porthcawl to Hemet (California) | 5,301.40 mi (8,531.78 km) |
| Porthcawl to Henderson (Kentucky) | 3,996.23 mi (6,431.31 km) |
| Porthcawl to Henderson (Nevada) | 5,108.78 mi (8,221.79 km) |
| Porthcawl to Henderson (North Carolina) | 3,692.39 mi (5,942.33 km) |
| Porthcawl to Henderson (Texas) | 4,562.26 mi (7,342.26 km) |
| Porthcawl to Hendersonville (North Carolina) | 3,906.49 mi (6,286.89 km) |
| Porthcawl to Hendersonville (Tennessee) | 4,029.38 mi (6,484.67 km) |
| Porthcawl to Hercules (California) | 5,229.93 mi (8,416.76 km) |
| Porthcawl to Hereford (Texas) | 4,720.76 mi (7,597.33 km) |
