| Romanshorn to Hoyo de Manzanares | 811.12 mi (1,305.37 km) |
| Romanshorn to Huelva | 1,091.40 mi (1,756.44 km) |
| Romanshorn to Huercal de Almeria | 950.88 mi (1,530.30 km) |
| Romanshorn to Huercal-Overa | 906.77 mi (1,459.30 km) |
| Romanshorn to Huesca | 607.46 mi (977.60 km) |
| Romanshorn to Huetor Vega | 973.66 mi (1,566.95 km) |
| Romanshorn to Huetor-Tajar | 987.80 mi (1,589.71 km) |
| Romanshorn to Humanes de Madrid | 826.23 mi (1,329.68 km) |
| Romanshorn to Ibi | 793.84 mi (1,277.55 km) |
| Romanshorn to Ibiza | 717.93 mi (1,155.40 km) |
| Romanshorn to Icod de los Vinos | 1,926.21 mi (3,099.94 km) |
| Romanshorn to Igualada | 561.41 mi (903.50 km) |
| Romanshorn to Illescas | 832.82 mi (1,340.29 km) |
| Romanshorn to Inca | 630.05 mi (1,013.97 km) |
| Romanshorn to Ingenio | 1,901.24 mi (3,059.74 km) |
