| SeaTac to Hoyo de Manzanares | 5,277.40 mi (8,493.16 km) |
| SeaTac to Huelva | 5,358.96 mi (8,624.42 km) |
| SeaTac to Huercal de Almeria | 5,531.12 mi (8,901.48 km) |
| SeaTac to Huercal-Overa | 5,519.70 mi (8,883.09 km) |
| SeaTac to Huesca | 5,302.63 mi (8,533.75 km) |
| SeaTac to Huetor Vega | 5,478.89 mi (8,817.42 km) |
| SeaTac to Huetor-Tajar | 5,460.45 mi (8,787.74 km) |
| SeaTac to Humanes de Madrid | 5,299.93 mi (8,529.41 km) |
| SeaTac to Ibi | 5,493.77 mi (8,841.38 km) |
| SeaTac to Ibiza | 5,540.42 mi (8,916.44 km) |
| SeaTac to Icod de los Vinos | 5,462.66 mi (8,791.31 km) |
| SeaTac to Igualada | 5,394.64 mi (8,681.84 km) |
| SeaTac to Illescas | 5,307.26 mi (8,541.21 km) |
| SeaTac to Inca | 5,539.28 mi (8,914.61 km) |
| SeaTac to Ingenio | 5,535.89 mi (8,909.16 km) |
