| Seaham to Hormigueros (Puerto Rico) | 4,240.57 mi (6,824.54 km) |
| Seaham to Horn Lake (Mississippi) | 4,241.03 mi (6,825.27 km) |
| Seaham to Hot Springs (Arkansas) | 4,376.03 mi (7,042.54 km) |
| Seaham to Hot Springs Village (Arkansas) | 4,364.04 mi (7,023.24 km) |
| Seaham to Houma (Louisiana) | 4,549.85 mi (7,322.27 km) |
| Seaham to Houston (Texas) | 4,714.41 mi (7,587.11 km) |
| Seaham to Howard (Wisconsin) | 3,685.86 mi (5,931.82 km) |
| Seaham to Huber Heights (Ohio) | 3,771.04 mi (6,068.90 km) |
| Seaham to Hudson (Florida) | 4,305.79 mi (6,929.50 km) |
| Seaham to Hudson (Ohio) | 3,604.29 mi (5,800.55 km) |
| Seaham to Hudson (Wisconsin) | 3,827.80 mi (6,160.26 km) |
| Seaham to Hueytown (Alabama) | 4,206.96 mi (6,770.46 km) |
| Seaham to Hugo (Minnesota) | 3,825.54 mi (6,156.61 km) |
| Seaham to Humacao (Puerto Rico) | 4,189.14 mi (6,741.78 km) |
| Seaham to Humble (Texas) | 4,698.66 mi (7,561.77 km) |
