| Widnes to Cehegin | 1,056.02 mi (1,699.50 km) |
| Widnes to Cervello | 854.93 mi (1,375.88 km) |
| Widnes to Cervera | 829.13 mi (1,334.36 km) |
| Widnes to Ceuti | 1,058.30 mi (1,703.17 km) |
| Widnes to Cheste | 964.06 mi (1,551.51 km) |
| Widnes to Chiclana de la Frontera | 1,182.45 mi (1,902.97 km) |
| Widnes to Chipiona | 1,162.75 mi (1,871.26 km) |
| Widnes to Chiva | 964.47 mi (1,552.17 km) |
| Widnes to Churriana de la Vega | 1,121.08 mi (1,804.21 km) |
| Widnes to Ciempozuelos | 913.25 mi (1,469.73 km) |
| Widnes to Cieza | 1,046.81 mi (1,684.67 km) |
| Widnes to Cisterniga | 816.63 mi (1,314.23 km) |
| Widnes to Ciudad de Melilla | 1,249.29 mi (2,010.53 km) |
| Widnes to Ciudad Real | 995.13 mi (1,601.51 km) |
| Widnes to Ciudad-Rodrigo | 899.83 mi (1,448.13 km) |
