| Donaueschingen to Cartagena | 860.58 mi (1,384.97 km) |
| Donaueschingen to Cartama | 1,023.42 mi (1,647.04 km) |
| Donaueschingen to Cartaya | 1,081.02 mi (1,739.74 km) |
| Donaueschingen to Caspe | 625.32 mi (1,006.36 km) |
| Donaueschingen to Cassa de la Selva | 501.06 mi (806.38 km) |
| Donaueschingen to Castalla | 793.07 mi (1,276.32 km) |
| Donaueschingen to Castellbisbal | 549.79 mi (884.79 km) |
| Donaueschingen to Castelldefels | 561.34 mi (903.40 km) |
| Donaueschingen to Castello de Ampurias | 473.97 mi (762.79 km) |
| Donaueschingen to Castellon de la Plana | 694.39 mi (1,117.51 km) |
| Donaueschingen to Castilleja de la Cuesta | 1,035.92 mi (1,667.15 km) |
| Donaueschingen to Catarroja | 738.63 mi (1,188.71 km) |
| Donaueschingen to Catral | 822.53 mi (1,323.73 km) |
| Donaueschingen to Caudete | 796.15 mi (1,281.28 km) |
| Donaueschingen to Cehegin | 855.70 mi (1,377.12 km) |
