| Redding to Cocentaina | 5,846.71 mi (9,409.38 km) |
| Redding to Coin | 5,798.19 mi (9,331.28 km) |
| Redding to Colindres | 5,502.12 mi (8,854.80 km) |
| Redding to Collado-Villalba | 5,623.39 mi (9,049.98 km) |
| Redding to Colmenar Viejo | 5,630.67 mi (9,061.69 km) |
| Redding to Colmenarejo | 5,626.78 mi (9,055.43 km) |
| Redding to Conil de la Frontera | 5,767.95 mi (9,282.62 km) |
| Redding to Consuegra | 5,697.52 mi (9,169.26 km) |
| Redding to Corbera de Llobregat | 5,784.99 mi (9,310.04 km) |
| Redding to Cordoba | 5,735.21 mi (9,229.92 km) |
| Redding to Coria del Rio | 5,718.11 mi (9,202.40 km) |
| Redding to Crevillente | 5,859.89 mi (9,430.59 km) |
| Redding to Cuarte de Huerva | 5,681.45 mi (9,143.41 km) |
| Redding to Cubellas | 5,787.60 mi (9,314.25 km) |
| Redding to Cuellar | 5,573.61 mi (8,969.86 km) |
