| Merthyr Tudful to Holiday (Florida) | 4,274.12 mi (6,878.54 km) |
| Merthyr Tudful to Holiday City-Berkeley (New Jersey) | 3,366.70 mi (5,418.18 km) |
| Merthyr Tudful to Holladay (Utah) | 4,747.66 mi (7,640.62 km) |
| Merthyr Tudful to Holland (Michigan) | 3,716.28 mi (5,980.77 km) |
| Merthyr Tudful to Hollins (Virginia) | 3,717.21 mi (5,982.28 km) |
| Merthyr Tudful to Hollister (California) | 5,266.14 mi (8,475.03 km) |
| Merthyr Tudful to Holly Hill (Florida) | 4,150.16 mi (6,679.05 km) |
| Merthyr Tudful to Holly Springs (Georgia) | 4,052.57 mi (6,521.99 km) |
| Merthyr Tudful to Holly Springs (North Carolina) | 3,749.57 mi (6,034.35 km) |
| Merthyr Tudful to Hollywood (Florida) | 4,273.63 mi (6,877.75 km) |
| Merthyr Tudful to Holmen (Wisconsin) | 3,857.66 mi (6,208.31 km) |
| Merthyr Tudful to Holt (Michigan) | 3,661.11 mi (5,891.99 km) |
| Merthyr Tudful to Holtsville (New York) | 3,279.39 mi (5,277.67 km) |
| Merthyr Tudful to Holyoke (Massachusetts) | 3,204.00 mi (5,156.34 km) |
| Merthyr Tudful to Home Gardens (California) | 5,309.69 mi (8,545.12 km) |
