| Merthyr Tudful to Haines City (Florida) | 4,230.49 mi (6,808.32 km) |
| Merthyr Tudful to Halawa (Hawaii) | 7,155.06 mi (11,514.95 km) |
| Merthyr Tudful to Half Moon Bay (California) | 5,263.11 mi (8,470.16 km) |
| Merthyr Tudful to Halfway (Maryland) | 3,525.21 mi (5,673.29 km) |
| Merthyr Tudful to Hallandale Beach (Florida) | 4,274.76 mi (6,879.56 km) |
| Merthyr Tudful to Haltom City (Texas) | 4,631.33 mi (7,453.41 km) |
| Merthyr Tudful to Ham Lake (Minnesota) | 3,869.98 mi (6,228.13 km) |
| Merthyr Tudful to Hamilton (Ohio) | 3,809.38 mi (6,130.60 km) |
| Merthyr Tudful to Hamilton Square (New Jersey) | 3,370.79 mi (5,424.77 km) |
| Merthyr Tudful to Hammond (Indiana) | 3,822.23 mi (6,151.29 km) |
| Merthyr Tudful to Hammond (Louisiana) | 4,477.14 mi (7,205.26 km) |
| Merthyr Tudful to Hammonton (New Jersey) | 3,400.21 mi (5,472.11 km) |
| Merthyr Tudful to Hampton (Virginia) | 3,582.24 mi (5,765.06 km) |
| Merthyr Tudful to Hampton Bays (New York) | 3,255.43 mi (5,239.11 km) |
| Merthyr Tudful to Hamtramck (Michigan) | 3,614.32 mi (5,816.68 km) |
