| Castleford to Cocentaina | 1,035.30 mi (1,666.15 km) |
| Castleford to Coin | 1,189.18 mi (1,913.80 km) |
| Castleford to Colindres | 719.30 mi (1,157.61 km) |
| Castleford to Collado-Villalba | 912.30 mi (1,468.21 km) |
| Castleford to Colmenar Viejo | 909.09 mi (1,463.04 km) |
| Castleford to Colmenarejo | 917.33 mi (1,476.30 km) |
| Castleford to Conil de la Frontera | 1,226.88 mi (1,974.47 km) |
| Castleford to Consuegra | 990.51 mi (1,594.08 km) |
| Castleford to Corbera de Llobregat | 863.25 mi (1,389.27 km) |
| Castleford to Cordoba | 1,105.88 mi (1,779.75 km) |
| Castleford to Coria del Rio | 1,157.28 mi (1,862.47 km) |
| Castleford to Crevillente | 1,069.01 mi (1,720.40 km) |
| Castleford to Cuarte de Huerva | 838.53 mi (1,349.49 km) |
| Castleford to Cubellas | 875.38 mi (1,408.79 km) |
| Castleford to Cuellar | 861.80 mi (1,386.93 km) |
