| Katy to Cocentaina | 5,229.10 mi (8,415.43 km) |
| Katy to Coin | 5,080.48 mi (8,176.24 km) |
| Katy to Colindres | 4,949.45 mi (7,965.37 km) |
| Katy to Collado-Villalba | 5,001.62 mi (8,049.34 km) |
| Katy to Colmenar Viejo | 5,012.45 mi (8,066.76 km) |
| Katy to Colmenarejo | 5,003.29 mi (8,052.02 km) |
| Katy to Conil de la Frontera | 5,024.94 mi (8,086.87 km) |
| Katy to Consuegra | 5,054.83 mi (8,134.96 km) |
| Katy to Corbera de Llobregat | 5,256.00 mi (8,458.71 km) |
| Katy to Cordoba | 5,043.41 mi (8,116.58 km) |
| Katy to Coria del Rio | 4,997.47 mi (8,042.65 km) |
| Katy to Crevillente | 5,226.84 mi (8,411.79 km) |
| Katy to Cuarte de Huerva | 5,119.27 mi (8,238.66 km) |
| Katy to Cubellas | 5,250.76 mi (8,450.28 km) |
| Katy to Cuellar | 4,965.30 mi (7,990.88 km) |
