| Unterwellenborn to Huelva | 1,295.06 mi (2,084.20 km) |
| Unterwellenborn to Huercal de Almeria | 1,172.74 mi (1,887.34 km) |
| Unterwellenborn to Huercal-Overa | 1,128.90 mi (1,816.79 km) |
| Unterwellenborn to Huesca | 814.34 mi (1,310.55 km) |
| Unterwellenborn to Huetor Vega | 1,190.82 mi (1,916.43 km) |
| Unterwellenborn to Huetor-Tajar | 1,203.05 mi (1,936.12 km) |
| Unterwellenborn to Humanes de Madrid | 1,027.94 mi (1,654.32 km) |
| Unterwellenborn to Ibi | 1,017.04 mi (1,636.76 km) |
| Unterwellenborn to Ibiza | 946.75 mi (1,523.65 km) |
| Unterwellenborn to Icod de los Vinos | 2,126.23 mi (3,421.84 km) |
| Unterwellenborn to Igualada | 782.52 mi (1,259.34 km) |
| Unterwellenborn to Illescas | 1,035.35 mi (1,666.24 km) |
| Unterwellenborn to Inca | 861.17 mi (1,385.92 km) |
| Unterwellenborn to Ingenio | 2,106.07 mi (3,389.40 km) |
| Unterwellenborn to Irun | 800.81 mi (1,288.77 km) |
