| Sion to Cocentaina | 651.93 mi (1,049.19 km) |
| Sion to Coin | 909.37 mi (1,463.49 km) |
| Sion to Colindres | 564.59 mi (908.62 km) |
| Sion to Collado-Villalba | 688.46 mi (1,107.97 km) |
| Sion to Colmenar Viejo | 677.37 mi (1,090.12 km) |
| Sion to Colmenarejo | 691.91 mi (1,113.51 km) |
| Sion to Conil de la Frontera | 978.42 mi (1,574.62 km) |
| Sion to Consuegra | 725.36 mi (1,167.36 km) |
| Sion to Corbera de Llobregat | 428.91 mi (690.26 km) |
| Sion to Cordoba | 847.33 mi (1,363.65 km) |
| Sion to Coria del Rio | 925.37 mi (1,489.24 km) |
| Sion to Crevillente | 691.47 mi (1,112.81 km) |
| Sion to Cuarte de Huerva | 522.25 mi (840.48 km) |
| Sion to Cubellas | 448.39 mi (721.61 km) |
| Sion to Cuellar | 670.26 mi (1,078.68 km) |
