| Rhondda to Hilliard (Ohio) | 3,725.56 mi (5,995.70 km) |
| Rhondda to Hillsboro (Oregon) | 4,823.86 mi (7,763.26 km) |
| Rhondda to Hillsborough (California) | 5,260.53 mi (8,466.00 km) |
| Rhondda to Hillsborough (New Jersey) | 3,359.45 mi (5,406.51 km) |
| Rhondda to Hilo (Hawaii) | 7,220.81 mi (11,620.76 km) |
| Rhondda to Hilton Head Island (South Carolina) | 3,993.86 mi (6,427.49 km) |
| Rhondda to Hinesville (Georgia) | 4,047.64 mi (6,514.05 km) |
| Rhondda to Hinsdale (Illinois) | 3,832.95 mi (6,168.54 km) |
| Rhondda to Hobart (Indiana) | 3,820.68 mi (6,148.80 km) |
| Rhondda to Hobbs (New Mexico) | 4,864.36 mi (7,828.43 km) |
| Rhondda to Hobe Sound (Florida) | 4,219.65 mi (6,790.87 km) |
| Rhondda to Hoboken (New Jersey) | 3,323.55 mi (5,348.73 km) |
| Rhondda to Hockessin (Delaware) | 3,433.12 mi (5,525.07 km) |
| Rhondda to Hoffman Estates (Illinois) | 3,829.40 mi (6,162.82 km) |
| Rhondda to Holbrook (New York) | 3,281.94 mi (5,281.77 km) |
