| Triangle to Cocentaina | 4,014.09 mi (6,460.05 km) |
| Triangle to Coin | 3,865.14 mi (6,220.33 km) |
| Triangle to Colindres | 3,739.70 mi (6,018.46 km) |
| Triangle to Collado-Villalba | 3,787.13 mi (6,094.80 km) |
| Triangle to Colmenar Viejo | 3,798.07 mi (6,112.41 km) |
| Triangle to Colmenarejo | 3,788.72 mi (6,097.36 km) |
| Triangle to Conil de la Frontera | 3,810.30 mi (6,132.09 km) |
| Triangle to Consuegra | 3,839.49 mi (6,179.07 km) |
| Triangle to Corbera de Llobregat | 4,045.96 mi (6,511.34 km) |
| Triangle to Cordoba | 3,827.61 mi (6,159.94 km) |
| Triangle to Coria del Rio | 3,782.05 mi (6,086.62 km) |
| Triangle to Crevillente | 4,011.41 mi (6,455.75 km) |
| Triangle to Cuarte de Huerva | 3,907.58 mi (6,288.64 km) |
| Triangle to Cubellas | 4,040.12 mi (6,501.95 km) |
| Triangle to Cuellar | 3,751.58 mi (6,037.59 km) |
