| Clayton to Hoyo de Manzanares | 913.56 mi (1,470.24 km) |
| Clayton to Huelva | 1,168.24 mi (1,880.10 km) |
| Clayton to Huercal de Almeria | 1,167.96 mi (1,879.66 km) |
| Clayton to Huercal-Overa | 1,133.05 mi (1,823.48 km) |
| Clayton to Huesca | 807.40 mi (1,299.38 km) |
| Clayton to Huetor Vega | 1,152.21 mi (1,854.29 km) |
| Clayton to Huetor-Tajar | 1,151.02 mi (1,852.38 km) |
| Clayton to Humanes de Madrid | 939.41 mi (1,511.83 km) |
| Clayton to Ibi | 1,048.73 mi (1,687.76 km) |
| Clayton to Ibiza | 1,038.95 mi (1,672.03 km) |
| Clayton to Icod de los Vinos | 1,911.76 mi (3,076.68 km) |
| Clayton to Igualada | 857.72 mi (1,380.37 km) |
| Clayton to Illescas | 948.87 mi (1,527.06 km) |
| Clayton to Inca | 996.72 mi (1,604.07 km) |
| Clayton to Ingenio | 1,915.71 mi (3,083.04 km) |
