| Williamstown to Hoyo de Manzanares | 3,645.75 mi (5,867.26 km) |
| Williamstown to Huelva | 3,592.54 mi (5,781.63 km) |
| Williamstown to Huercal de Almeria | 3,827.47 mi (6,159.72 km) |
| Williamstown to Huercal-Overa | 3,836.46 mi (6,174.18 km) |
| Williamstown to Huesca | 3,767.44 mi (6,063.10 km) |
| Williamstown to Huetor Vega | 3,763.31 mi (6,056.46 km) |
| Williamstown to Huetor-Tajar | 3,738.25 mi (6,016.14 km) |
| Williamstown to Humanes de Madrid | 3,659.08 mi (5,888.72 km) |
| Williamstown to Ibi | 3,864.02 mi (6,218.54 km) |
| Williamstown to Ibiza | 3,951.78 mi (6,359.77 km) |
| Williamstown to Icod de los Vinos | 3,368.38 mi (5,420.88 km) |
| Williamstown to Igualada | 3,878.57 mi (6,241.96 km) |
| Williamstown to Illescas | 3,662.70 mi (5,894.55 km) |
| Williamstown to Inca | 3,996.81 mi (6,432.24 km) |
| Williamstown to Ingenio | 3,450.14 mi (5,552.47 km) |
