| Mercer Island to Hoyo de Manzanares | 5,269.16 mi (8,479.89 km) |
| Mercer Island to Huelva | 5,350.99 mi (8,611.58 km) |
| Mercer Island to Huercal de Almeria | 5,522.97 mi (8,888.35 km) |
| Mercer Island to Huercal-Overa | 5,511.50 mi (8,869.90 km) |
| Mercer Island to Huesca | 5,294.20 mi (8,520.20 km) |
| Mercer Island to Huetor Vega | 5,470.77 mi (8,804.35 km) |
| Mercer Island to Huetor-Tajar | 5,452.35 mi (8,774.70 km) |
| Mercer Island to Humanes de Madrid | 5,291.70 mi (8,516.16 km) |
| Mercer Island to Ibi | 5,485.48 mi (8,828.02 km) |
| Mercer Island to Ibiza | 5,532.03 mi (8,902.95 km) |
| Mercer Island to Icod de los Vinos | 5,455.74 mi (8,780.16 km) |
| Mercer Island to Igualada | 5,386.17 mi (8,668.21 km) |
| Mercer Island to Illescas | 5,299.03 mi (8,527.97 km) |
| Mercer Island to Inca | 5,530.82 mi (8,901.00 km) |
| Mercer Island to Ingenio | 5,528.91 mi (8,897.93 km) |
