| Llantrisant to Hormigueros (Puerto Rico) | 4,121.35 mi (6,632.68 km) |
| Llantrisant to Horn Lake (Mississippi) | 4,244.70 mi (6,831.18 km) |
| Llantrisant to Hot Springs (Arkansas) | 4,386.89 mi (7,060.02 km) |
| Llantrisant to Hot Springs Village (Arkansas) | 4,375.19 mi (7,041.19 km) |
| Llantrisant to Houma (Louisiana) | 4,538.46 mi (7,303.94 km) |
| Llantrisant to Houston (Texas) | 4,717.86 mi (7,592.66 km) |
| Llantrisant to Howard (Wisconsin) | 3,718.57 mi (5,984.46 km) |
| Llantrisant to Huber Heights (Ohio) | 3,775.26 mi (6,075.70 km) |
| Llantrisant to Hudson (Florida) | 4,265.98 mi (6,865.44 km) |
| Llantrisant to Hudson (Ohio) | 3,606.63 mi (5,804.31 km) |
| Llantrisant to Hudson (Wisconsin) | 3,873.46 mi (6,233.73 km) |
| Llantrisant to Hueytown (Alabama) | 4,196.73 mi (6,753.98 km) |
| Llantrisant to Hugo (Minnesota) | 3,872.50 mi (6,232.18 km) |
| Llantrisant to Humacao (Puerto Rico) | 4,065.85 mi (6,543.36 km) |
| Llantrisant to Humble (Texas) | 4,702.35 mi (7,567.70 km) |
