| Castleton to Hoyo de Manzanares | 898.80 mi (1,446.48 km) |
| Castleton to Huelva | 1,151.89 mi (1,853.79 km) |
| Castleton to Huercal de Almeria | 1,154.44 mi (1,857.89 km) |
| Castleton to Huercal-Overa | 1,119.88 mi (1,802.28 km) |
| Castleton to Huesca | 795.74 mi (1,280.63 km) |
| Castleton to Huetor Vega | 1,137.90 mi (1,831.27 km) |
| Castleton to Huetor-Tajar | 1,136.39 mi (1,828.84 km) |
| Castleton to Humanes de Madrid | 924.72 mi (1,488.19 km) |
| Castleton to Ibi | 1,036.64 mi (1,668.31 km) |
| Castleton to Ibiza | 1,028.60 mi (1,655.38 km) |
| Castleton to Icod de los Vinos | 1,893.07 mi (3,046.60 km) |
| Castleton to Igualada | 848.08 mi (1,364.85 km) |
| Castleton to Illescas | 934.19 mi (1,503.44 km) |
| Castleton to Inca | 987.89 mi (1,589.86 km) |
| Castleton to Ingenio | 1,897.33 mi (3,053.46 km) |
