| Slough to Cehegin | 928.81 mi (1,494.78 km) |
| Slough to Cervello | 709.01 mi (1,141.04 km) |
| Slough to Cervera | 685.71 mi (1,103.54 km) |
| Slough to Ceuti | 928.48 mi (1,494.25 km) |
| Slough to Cheste | 831.12 mi (1,337.55 km) |
| Slough to Chiclana de la Frontera | 1,078.01 mi (1,734.88 km) |
| Slough to Chipiona | 1,060.37 mi (1,706.50 km) |
| Slough to Chiva | 831.70 mi (1,338.49 km) |
| Slough to Churriana de la Vega | 1,003.31 mi (1,614.68 km) |
| Slough to Ciempozuelos | 797.42 mi (1,283.33 km) |
| Slough to Cieza | 917.70 mi (1,476.89 km) |
| Slough to Cisterniga | 710.31 mi (1,143.13 km) |
| Slough to Ciudad de Melilla | 1,127.19 mi (1,814.03 km) |
| Slough to Ciudad Real | 880.18 mi (1,416.51 km) |
| Slough to Ciudad-Rodrigo | 805.44 mi (1,296.23 km) |
