| Seaham to Hutchinson (Minnesota) | 3,887.68 mi (6,256.62 km) |
| Seaham to Hutto (Texas) | 4,752.77 mi (7,648.85 km) |
| Seaham to Hyattsville (Maryland) | 3,544.12 mi (5,703.71 km) |
| Seaham to Hybla Valley (Virginia) | 3,559.31 mi (5,728.16 km) |
| Seaham to Idaho Falls (Idaho) | 4,524.40 mi (7,281.32 km) |
| Seaham to Idylwood (Virginia) | 3,557.22 mi (5,724.79 km) |
| Seaham to Ilchester (Maryland) | 3,524.55 mi (5,672.21 km) |
| Seaham to Immokalee (Florida) | 4,358.93 mi (7,015.02 km) |
| Seaham to Imperial (California) | 5,239.52 mi (8,432.19 km) |
| Seaham to Imperial Beach (California) | 5,303.52 mi (8,535.19 km) |
| Seaham to Independence (Kentucky) | 3,832.26 mi (6,167.42 km) |
| Seaham to Independence (Missouri) | 4,182.10 mi (6,730.45 km) |
| Seaham to Indian Trail (North Carolina) | 3,878.70 mi (6,242.16 km) |
| Seaham to Indiana (Pennsylvania) | 3,548.09 mi (5,710.10 km) |
| Seaham to Indianapolis (Indiana) | 3,850.37 mi (6,196.57 km) |
