| Horndean to Hoyo de Manzanares | 723.65 mi (1,164.60 km) |
| Horndean to Huelva | 988.41 mi (1,590.70 km) |
| Horndean to Huercal de Almeria | 971.99 mi (1,564.26 km) |
| Horndean to Huercal-Overa | 935.99 mi (1,506.32 km) |
| Horndean to Huesca | 607.28 mi (977.32 km) |
| Horndean to Huetor Vega | 959.35 mi (1,543.93 km) |
| Horndean to Huetor-Tajar | 959.69 mi (1,544.47 km) |
| Horndean to Humanes de Madrid | 748.98 mi (1,205.37 km) |
| Horndean to Ibi | 849.16 mi (1,366.58 km) |
| Horndean to Ibiza | 837.79 mi (1,348.30 km) |
| Horndean to Icod de los Vinos | 1,760.43 mi (2,833.14 km) |
| Horndean to Igualada | 656.69 mi (1,056.84 km) |
| Horndean to Illescas | 758.38 mi (1,220.50 km) |
| Horndean to Inca | 796.35 mi (1,281.60 km) |
| Horndean to Ingenio | 1,758.36 mi (2,829.80 km) |
