| Hard to Huelva | 1,101.35 mi (1,772.46 km) |
| Hard to Huercal de Almeria | 957.99 mi (1,541.74 km) |
| Hard to Huercal-Overa | 913.84 mi (1,470.68 km) |
| Hard to Huesca | 617.53 mi (993.81 km) |
| Hard to Huetor Vega | 981.69 mi (1,579.88 km) |
| Hard to Huetor-Tajar | 996.16 mi (1,603.17 km) |
| Hard to Humanes de Madrid | 836.64 mi (1,346.44 km) |
| Hard to Ibi | 800.75 mi (1,288.69 km) |
| Hard to Ibiza | 723.26 mi (1,163.98 km) |
| Hard to Icod de los Vinos | 1,936.26 mi (3,116.11 km) |
| Hard to Igualada | 569.11 mi (915.89 km) |
| Hard to Illescas | 843.13 mi (1,356.88 km) |
| Hard to Inca | 634.45 mi (1,021.05 km) |
| Hard to Ingenio | 1,910.72 mi (3,075.01 km) |
| Hard to Irun | 625.43 mi (1,006.53 km) |
