| Douai to Cartagena | 904.87 mi (1,456.25 km) |
| Douai to Cartama | 1,018.42 mi (1,638.99 km) |
| Douai to Cartaya | 1,035.94 mi (1,667.19 km) |
| Douai to Caspe | 648.79 mi (1,044.13 km) |
| Douai to Cassa de la Selva | 586.14 mi (943.30 km) |
| Douai to Castalla | 834.01 mi (1,342.21 km) |
| Douai to Castellbisbal | 616.81 mi (992.65 km) |
| Douai to Castelldefels | 630.38 mi (1,014.49 km) |
| Douai to Castello de Ampurias | 560.57 mi (902.15 km) |
| Douai to Castellon de la Plana | 733.43 mi (1,180.34 km) |
| Douai to Castilleja de la Cuesta | 1,004.25 mi (1,616.18 km) |
| Douai to Catarroja | 776.58 mi (1,249.79 km) |
| Douai to Catral | 865.07 mi (1,392.20 km) |
| Douai to Caudete | 830.30 mi (1,336.24 km) |
| Douai to Cehegin | 881.61 mi (1,418.81 km) |
