| Greenford to Cocentaina | 883.36 mi (1,421.63 km) |
| Greenford to Coin | 1,049.42 mi (1,688.87 km) |
| Greenford to Colindres | 580.16 mi (933.68 km) |
| Greenford to Collado-Villalba | 772.78 mi (1,243.67 km) |
| Greenford to Colmenar Viejo | 768.53 mi (1,236.82 km) |
| Greenford to Colmenarejo | 777.78 mi (1,251.71 km) |
| Greenford to Conil de la Frontera | 1,091.70 mi (1,756.91 km) |
| Greenford to Consuegra | 848.39 mi (1,365.35 km) |
| Greenford to Corbera de Llobregat | 707.02 mi (1,137.84 km) |
| Greenford to Cordoba | 967.12 mi (1,556.43 km) |
| Greenford to Coria del Rio | 1,022.99 mi (1,646.34 km) |
| Greenford to Crevillente | 917.92 mi (1,477.25 km) |
| Greenford to Cuarte de Huerva | 687.77 mi (1,106.85 km) |
| Greenford to Cubellas | 719.45 mi (1,157.84 km) |
| Greenford to Cuellar | 724.55 mi (1,166.06 km) |
