| SeaTac to Hillcrest Heights (Maryland) | 2,326.24 mi (3,743.73 km) |
| SeaTac to Hilliard (Ohio) | 1,996.90 mi (3,213.70 km) |
| SeaTac to Hillsboro (Oregon) | 135.88 mi (218.68 km) |
| SeaTac to Hillsborough (California) | 683.15 mi (1,099.42 km) |
| SeaTac to Hillsborough (New Jersey) | 2,378.35 mi (3,827.59 km) |
| SeaTac to Hilo (Hawaii) | 2,654.48 mi (4,271.97 km) |
| SeaTac to Hilton Head Island (South Carolina) | 2,407.16 mi (3,873.95 km) |
| SeaTac to Hinesville (Georgia) | 2,383.31 mi (3,835.56 km) |
| SeaTac to Hinsdale (Illinois) | 1,719.67 mi (2,767.55 km) |
| SeaTac to Hobart (Indiana) | 1,758.67 mi (2,830.31 km) |
| SeaTac to Hobbs (New Mexico) | 1,426.81 mi (2,296.23 km) |
| SeaTac to Hobe Sound (Florida) | 2,666.01 mi (4,290.52 km) |
| SeaTac to Hoboken (New Jersey) | 2,399.66 mi (3,861.87 km) |
| SeaTac to Hockessin (Delaware) | 2,354.13 mi (3,788.61 km) |
| SeaTac to Hoffman Estates (Illinois) | 1,701.84 mi (2,738.84 km) |
