| Castelo Branco to Cartagena | 383.23 mi (616.75 km) |
| Castelo Branco to Cartama | 265.04 mi (426.54 km) |
| Castelo Branco to Cartaya | 176.06 mi (283.34 km) |
| Castelo Branco to Caspe | 404.03 mi (650.23 km) |
| Castelo Branco to Cassa de la Selva | 560.36 mi (901.82 km) |
| Castelo Branco to Castalla | 375.11 mi (603.68 km) |
| Castelo Branco to Castellbisbal | 509.86 mi (820.55 km) |
| Castelo Branco to Castelldefels | 507.43 mi (816.63 km) |
| Castelo Branco to Castello de Ampurias | 575.89 mi (926.81 km) |
| Castelo Branco to Castellon de la Plana | 395.84 mi (637.05 km) |
| Castelo Branco to Castilleja de la Cuesta | 185.46 mi (298.47 km) |
| Castelo Branco to Catarroja | 378.68 mi (609.42 km) |
| Castelo Branco to Catral | 377.23 mi (607.10 km) |
| Castelo Branco to Caudete | 356.66 mi (573.98 km) |
| Castelo Branco to Cehegin | 328.59 mi (528.82 km) |
