| Widnau to Cocentaina | 783.59 mi (1,261.06 km) |
| Widnau to Coin | 1,043.08 mi (1,678.68 km) |
| Widnau to Colindres | 691.18 mi (1,112.35 km) |
| Widnau to Collado-Villalba | 821.54 mi (1,322.14 km) |
| Widnau to Colmenar Viejo | 810.59 mi (1,304.52 km) |
| Widnau to Colmenarejo | 825.06 mi (1,327.81 km) |
| Widnau to Conil de la Frontera | 1,112.42 mi (1,790.27 km) |
| Widnau to Consuegra | 859.40 mi (1,383.08 km) |
| Widnau to Corbera de Llobregat | 561.05 mi (902.92 km) |
| Widnau to Cordoba | 981.40 mi (1,579.42 km) |
| Widnau to Coria del Rio | 1,059.45 mi (1,705.01 km) |
| Widnau to Crevillente | 822.99 mi (1,324.47 km) |
| Widnau to Cuarte de Huerva | 656.21 mi (1,056.07 km) |
| Widnau to Cubellas | 580.60 mi (934.38 km) |
| Widnau to Cuellar | 801.86 mi (1,290.47 km) |
