| Grenchen to Hoyo de Manzanares | 720.21 mi (1,159.07 km) |
| Grenchen to Huelva | 1,002.31 mi (1,613.07 km) |
| Grenchen to Huercal de Almeria | 871.19 mi (1,402.05 km) |
| Grenchen to Huercal-Overa | 827.29 mi (1,331.40 km) |
| Grenchen to Huesca | 518.69 mi (834.75 km) |
| Grenchen to Huetor Vega | 890.63 mi (1,433.33 km) |
| Grenchen to Huetor-Tajar | 903.65 mi (1,454.28 km) |
| Grenchen to Humanes de Madrid | 736.15 mi (1,184.71 km) |
| Grenchen to Ibi | 715.27 mi (1,151.12 km) |
| Grenchen to Ibiza | 646.13 mi (1,039.84 km) |
| Grenchen to Icod de los Vinos | 1,836.54 mi (2,955.63 km) |
| Grenchen to Igualada | 480.88 mi (773.90 km) |
| Grenchen to Illescas | 743.01 mi (1,195.75 km) |
| Grenchen to Inca | 562.91 mi (905.92 km) |
| Grenchen to Ingenio | 1,813.06 mi (2,917.84 km) |
