| Alfter to Cartagena | 988.83 mi (1,591.37 km) |
| Alfter to Cartama | 1,126.87 mi (1,813.51 km) |
| Alfter to Cartaya | 1,161.51 mi (1,869.27 km) |
| Alfter to Caspe | 737.69 mi (1,187.20 km) |
| Alfter to Cassa de la Selva | 642.02 mi (1,033.23 km) |
| Alfter to Castalla | 918.51 mi (1,478.21 km) |
| Alfter to Castellbisbal | 683.15 mi (1,099.42 km) |
| Alfter to Castelldefels | 696.11 mi (1,120.28 km) |
| Alfter to Castello de Ampurias | 614.67 mi (989.21 km) |
| Alfter to Castellon de la Plana | 816.92 mi (1,314.70 km) |
| Alfter to Castilleja de la Cuesta | 1,124.01 mi (1,808.91 km) |
| Alfter to Catarroja | 861.50 mi (1,386.45 km) |
| Alfter to Catral | 949.30 mi (1,527.75 km) |
| Alfter to Caudete | 918.05 mi (1,477.45 km) |
| Alfter to Cehegin | 974.12 mi (1,567.69 km) |
