| Olton to Carmona | 1,050.81 mi (1,691.11 km) |
| Olton to Cartagena | 1,025.96 mi (1,651.12 km) |
| Olton to Cartama | 1,095.22 mi (1,762.59 km) |
| Olton to Cartaya | 1,078.53 mi (1,735.73 km) |
| Olton to Caspe | 778.61 mi (1,253.04 km) |
| Olton to Cassa de la Selva | 760.85 mi (1,224.47 km) |
| Olton to Castalla | 957.87 mi (1,541.54 km) |
| Olton to Castellbisbal | 777.83 mi (1,251.80 km) |
| Olton to Castelldefels | 791.08 mi (1,273.12 km) |
| Olton to Castello de Ampurias | 739.08 mi (1,189.44 km) |
| Olton to Castellon de la Plana | 864.62 mi (1,391.48 km) |
| Olton to Castilleja de la Cuesta | 1,060.22 mi (1,706.25 km) |
| Olton to Catarroja | 903.09 mi (1,453.39 km) |
| Olton to Catral | 987.71 mi (1,589.56 km) |
| Olton to Caudete | 949.69 mi (1,528.37 km) |
