| Llantwit Major to Hoyo de Manzanares | 744.59 mi (1,198.30 km) |
| Llantwit Major to Huelva | 992.77 mi (1,597.71 km) |
| Llantwit Major to Huercal de Almeria | 1,004.74 mi (1,616.97 km) |
| Llantwit Major to Huercal-Overa | 971.82 mi (1,563.99 km) |
| Llantwit Major to Huesca | 656.68 mi (1,056.83 km) |
| Llantwit Major to Huetor Vega | 985.02 mi (1,585.23 km) |
| Llantwit Major to Huetor-Tajar | 982.32 mi (1,580.89 km) |
| Llantwit Major to Humanes de Madrid | 770.73 mi (1,240.38 km) |
| Llantwit Major to Ibi | 894.04 mi (1,438.82 km) |
| Llantwit Major to Ibiza | 895.45 mi (1,441.10 km) |
| Llantwit Major to Icod de los Vinos | 1,734.31 mi (2,791.10 km) |
| Llantwit Major to Igualada | 720.36 mi (1,159.30 km) |
| Llantwit Major to Illescas | 780.22 mi (1,255.64 km) |
| Llantwit Major to Inca | 864.01 mi (1,390.49 km) |
| Llantwit Major to Ingenio | 1,737.62 mi (2,796.43 km) |
