| Billdal to Cocentaina | 1,415.86 mi (2,278.61 km) |
| Billdal to Coin | 1,634.18 mi (2,629.95 km) |
| Billdal to Colindres | 1,184.76 mi (1,906.68 km) |
| Billdal to Collado-Villalba | 1,367.66 mi (2,201.03 km) |
| Billdal to Colmenar Viejo | 1,360.56 mi (2,189.62 km) |
| Billdal to Colmenarejo | 1,372.37 mi (2,208.61 km) |
| Billdal to Conil de la Frontera | 1,688.66 mi (2,717.64 km) |
| Billdal to Consuegra | 1,432.17 mi (2,304.86 km) |
| Billdal to Corbera de Llobregat | 1,200.81 mi (1,932.51 km) |
| Billdal to Cordoba | 1,557.44 mi (2,506.45 km) |
| Billdal to Coria del Rio | 1,623.78 mi (2,613.22 km) |
| Billdal to Crevillente | 1,454.80 mi (2,341.27 km) |
| Billdal to Cuarte de Huerva | 1,241.59 mi (1,998.15 km) |
| Billdal to Cubellas | 1,218.57 mi (1,961.11 km) |
| Billdal to Cuellar | 1,327.26 mi (2,136.01 km) |
