| SeaTac to Hutchinson (Kansas) | 1,388.51 mi (2,234.60 km) |
| SeaTac to Hutchinson (Minnesota) | 1,340.43 mi (2,157.21 km) |
| SeaTac to Hutto (Texas) | 1,755.63 mi (2,825.41 km) |
| SeaTac to Hyattsville (Maryland) | 2,322.43 mi (3,737.59 km) |
| SeaTac to Hybla Valley (Virginia) | 2,323.79 mi (3,739.78 km) |
| SeaTac to Idaho Falls (Idaho) | 566.85 mi (912.26 km) |
| SeaTac to Idylwood (Virginia) | 2,313.17 mi (3,722.69 km) |
| SeaTac to Ilchester (Maryland) | 2,322.38 mi (3,737.51 km) |
| SeaTac to Immokalee (Florida) | 2,639.86 mi (4,248.45 km) |
| SeaTac to Imperial (California) | 1,068.82 mi (1,720.10 km) |
| SeaTac to Imperial Beach (California) | 1,063.08 mi (1,710.86 km) |
| SeaTac to Independence (Kentucky) | 1,968.06 mi (3,167.29 km) |
| SeaTac to Independence (Missouri) | 1,509.74 mi (2,429.69 km) |
| SeaTac to Indian Trail (North Carolina) | 2,293.46 mi (3,690.96 km) |
| SeaTac to Indiana (Pennsylvania) | 2,165.07 mi (3,484.34 km) |
