| Grottaferrata to Huelva | 1,089.03 mi (1,752.62 km) |
| Grottaferrata to Huercal de Almeria | 873.91 mi (1,406.42 km) |
| Grottaferrata to Huercal-Overa | 833.78 mi (1,341.84 km) |
| Grottaferrata to Huesca | 672.22 mi (1,081.83 km) |
| Grottaferrata to Huetor Vega | 921.73 mi (1,483.38 km) |
| Grottaferrata to Huetor-Tajar | 944.34 mi (1,519.77 km) |
| Grottaferrata to Humanes de Madrid | 865.25 mi (1,392.48 km) |
| Grottaferrata to Ibi | 731.45 mi (1,177.15 km) |
| Grottaferrata to Ibiza | 623.79 mi (1,003.89 km) |
| Grottaferrata to Icod de los Vinos | 1,889.22 mi (3,040.41 km) |
| Grottaferrata to Igualada | 570.01 mi (917.34 km) |
| Grottaferrata to Illescas | 867.62 mi (1,396.29 km) |
| Grottaferrata to Inca | 529.93 mi (852.83 km) |
| Grottaferrata to Ingenio | 1,846.51 mi (2,971.67 km) |
| Grottaferrata to Irun | 742.67 mi (1,195.21 km) |
