| Porthcawl to Hicksville (New York) | 3,293.32 mi (5,300.08 km) |
| Porthcawl to Hidalgo (Texas) | 5,012.66 mi (8,067.09 km) |
| Porthcawl to High Point (North Carolina) | 3,773.42 mi (6,072.73 km) |
| Porthcawl to Highland (California) | 5,285.97 mi (8,506.95 km) |
| Porthcawl to Highland (Illinois) | 4,036.03 mi (6,495.35 km) |
| Porthcawl to Highland (Indiana) | 3,819.74 mi (6,147.28 km) |
| Porthcawl to Highland (Utah) | 4,760.35 mi (7,661.04 km) |
| Porthcawl to Highland City (Florida) | 4,238.83 mi (6,821.74 km) |
| Porthcawl to Highland Park (Illinois) | 3,804.64 mi (6,122.97 km) |
| Porthcawl to Highland Park (New Jersey) | 3,341.87 mi (5,378.22 km) |
| Porthcawl to Highland Springs (Virginia) | 3,591.47 mi (5,779.92 km) |
| Porthcawl to Highland Village (Texas) | 4,604.57 mi (7,410.35 km) |
| Porthcawl to Highlands Ranch (Colorado) | 4,571.34 mi (7,356.86 km) |
| Porthcawl to Hillcrest (California) | 5,274.24 mi (8,488.07 km) |
| Porthcawl to Hillcrest Heights (Maryland) | 3,518.99 mi (5,663.26 km) |
