| Ruislip to Hoyo de Manzanares | 773.69 mi (1,245.14 km) |
| Ruislip to Huelva | 1,039.74 mi (1,673.30 km) |
| Ruislip to Huercal de Almeria | 1,019.88 mi (1,641.35 km) |
| Ruislip to Huercal-Overa | 983.35 mi (1,582.55 km) |
| Ruislip to Huesca | 652.43 mi (1,049.98 km) |
| Ruislip to Huetor Vega | 1,008.44 mi (1,622.93 km) |
| Ruislip to Huetor-Tajar | 1,009.22 mi (1,624.18 km) |
| Ruislip to Humanes de Madrid | 798.89 mi (1,285.69 km) |
| Ruislip to Ibi | 894.70 mi (1,439.88 km) |
| Ruislip to Ibiza | 879.83 mi (1,415.95 km) |
| Ruislip to Icod de los Vinos | 1,812.02 mi (2,916.16 km) |
| Ruislip to Igualada | 697.34 mi (1,122.26 km) |
| Ruislip to Illescas | 808.26 mi (1,300.77 km) |
| Ruislip to Inca | 834.99 mi (1,343.78 km) |
| Ruislip to Ingenio | 1,810.13 mi (2,913.12 km) |
