| Holyhead to Harrison (Wisconsin) | 3,639.82 mi (5,857.72 km) |
| Holyhead to Harrisonburg (Virginia) | 3,542.72 mi (5,701.45 km) |
| Holyhead to Hartford (Connecticut) | 3,144.90 mi (5,061.23 km) |
| Holyhead to Hartford (Wisconsin) | 3,683.19 mi (5,927.51 km) |
| Holyhead to Hartselle (Alabama) | 4,056.10 mi (6,527.66 km) |
| Holyhead to Hartsville (Tennessee) | 3,928.82 mi (6,322.82 km) |
| Holyhead to Harvey (Illinois) | 3,736.05 mi (6,012.59 km) |
| Holyhead to Harvey (Louisiana) | 4,411.20 mi (7,099.14 km) |
| Holyhead to Hasbrouck Heights (New Jersey) | 3,240.33 mi (5,214.81 km) |
| Holyhead to Haslett (Michigan) | 3,559.58 mi (5,728.59 km) |
| Holyhead to Hastings (Minnesota) | 3,781.01 mi (6,084.95 km) |
| Holyhead to Hastings (Nebraska) | 4,181.77 mi (6,729.91 km) |
| Holyhead to Hattiesburg (Mississippi) | 4,308.40 mi (6,933.70 km) |
| Holyhead to Hauppauge (New York) | 3,207.53 mi (5,162.02 km) |
| Holyhead to Havelock (North Carolina) | 3,630.55 mi (5,842.81 km) |
