| Runcorn to Cocentaina | 1,014.39 mi (1,632.50 km) |
| Runcorn to Coin | 1,156.23 mi (1,860.77 km) |
| Runcorn to Colindres | 687.92 mi (1,107.10 km) |
| Runcorn to Collado-Villalba | 880.09 mi (1,416.38 km) |
| Runcorn to Colmenar Viejo | 877.63 mi (1,412.42 km) |
| Runcorn to Colmenarejo | 885.12 mi (1,424.47 km) |
| Runcorn to Conil de la Frontera | 1,190.82 mi (1,916.44 km) |
| Runcorn to Consuegra | 959.90 mi (1,544.81 km) |
| Runcorn to Corbera de Llobregat | 851.89 mi (1,370.98 km) |
| Runcorn to Cordoba | 1,072.46 mi (1,725.95 km) |
| Runcorn to Coria del Rio | 1,120.87 mi (1,803.87 km) |
| Runcorn to Crevillente | 1,046.86 mi (1,684.76 km) |
| Runcorn to Cuarte de Huerva | 816.79 mi (1,314.50 km) |
| Runcorn to Cubellas | 862.89 mi (1,388.69 km) |
| Runcorn to Cuellar | 828.29 mi (1,333.01 km) |
