| Guadarrama to Huelva | 282.02 mi (453.86 km) |
| Guadarrama to Huercal de Almeria | 276.58 mi (445.12 km) |
| Guadarrama to Huercal-Overa | 255.01 mi (410.41 km) |
| Guadarrama to Huesca | 215.38 mi (346.63 km) |
| Guadarrama to Huetor Vega | 245.01 mi (394.31 km) |
| Guadarrama to Huetor-Tajar | 240.32 mi (386.76 km) |
| Guadarrama to Humanes de Madrid | 32.03 mi (51.55 km) |
| Guadarrama to Ibi | 234.31 mi (377.08 km) |
| Guadarrama to Ibiza | 317.40 mi (510.80 km) |
| Guadarrama to Icod de los Vinos | 1,111.28 mi (1,788.44 km) |
| Guadarrama to Igualada | 303.66 mi (488.69 km) |
| Guadarrama to Illescas | 40.71 mi (65.51 km) |
| Guadarrama to Inca | 375.48 mi (604.28 km) |
| Guadarrama to Ingenio | 1,091.27 mi (1,756.23 km) |
| Guadarrama to Irun | 218.73 mi (352.01 km) |
