| Holyhead to Hanahan (South Carolina) | 3,853.03 mi (6,200.85 km) |
| Holyhead to Hanford (California) | 5,130.25 mi (8,256.34 km) |
| Holyhead to Hannibal (Missouri) | 3,968.24 mi (6,386.26 km) |
| Holyhead to Hanover (Pennsylvania) | 3,403.85 mi (5,477.97 km) |
| Holyhead to Hanover Park (Illinois) | 3,737.05 mi (6,014.20 km) |
| Holyhead to Happy Valley (Oregon) | 4,695.49 mi (7,556.66 km) |
| Holyhead to Harker Heights (Texas) | 4,646.20 mi (7,477.33 km) |
| Holyhead to Harlingen (Texas) | 4,906.91 mi (7,896.92 km) |
| Holyhead to Harper Woods (Michigan) | 3,517.48 mi (5,660.83 km) |
| Holyhead to Harrisburg (North Carolina) | 3,762.51 mi (6,055.18 km) |
| Holyhead to Harrisburg (Pennsylvania) | 3,378.84 mi (5,437.71 km) |
| Holyhead to Harrison (Arkansas) | 4,205.64 mi (6,768.32 km) |
| Holyhead to Harrison (New Jersey) | 3,248.77 mi (5,228.39 km) |
| Holyhead to Harrison (New York) | 3,218.96 mi (5,180.41 km) |
| Holyhead to Harrison (Ohio) | 3,737.07 mi (6,014.23 km) |
