| Conwy to Hormigueros (Puerto Rico) | 4,122.75 mi (6,634.92 km) |
| Conwy to Horn Lake (Mississippi) | 4,184.31 mi (6,734.00 km) |
| Conwy to Hot Springs (Arkansas) | 4,323.47 mi (6,957.96 km) |
| Conwy to Hot Springs Village (Arkansas) | 4,311.64 mi (6,938.91 km) |
| Conwy to Houma (Louisiana) | 4,484.93 mi (7,217.80 km) |
| Conwy to Houston (Texas) | 4,657.83 mi (7,496.06 km) |
| Conwy to Howard (Wisconsin) | 3,645.60 mi (5,867.03 km) |
| Conwy to Huber Heights (Ohio) | 3,714.33 mi (5,977.64 km) |
| Conwy to Hudson (Florida) | 4,225.56 mi (6,800.38 km) |
| Conwy to Hudson (Ohio) | 3,546.40 mi (5,707.38 km) |
| Conwy to Hudson (Wisconsin) | 3,795.43 mi (6,108.16 km) |
| Conwy to Hueytown (Alabama) | 4,142.48 mi (6,666.68 km) |
| Conwy to Hugo (Minnesota) | 3,793.96 mi (6,105.78 km) |
| Conwy to Humacao (Puerto Rico) | 4,069.60 mi (6,549.38 km) |
| Conwy to Humble (Texas) | 4,642.21 mi (7,470.92 km) |
