| Altena to Cartagena | 1,036.54 mi (1,668.16 km) |
| Altena to Cartama | 1,175.21 mi (1,891.31 km) |
| Altena to Cartaya | 1,209.57 mi (1,946.62 km) |
| Altena to Caspe | 785.78 mi (1,264.59 km) |
| Altena to Cassa de la Selva | 688.50 mi (1,108.03 km) |
| Altena to Castalla | 966.30 mi (1,555.11 km) |
| Altena to Castellbisbal | 730.24 mi (1,175.21 km) |
| Altena to Castelldefels | 743.14 mi (1,195.97 km) |
| Altena to Castello de Ampurias | 661.10 mi (1,063.93 km) |
| Altena to Castellon de la Plana | 864.74 mi (1,391.66 km) |
| Altena to Castilleja de la Cuesta | 1,172.25 mi (1,886.55 km) |
| Altena to Catarroja | 909.35 mi (1,463.45 km) |
| Altena to Catral | 997.05 mi (1,604.59 km) |
| Altena to Caudete | 965.97 mi (1,554.58 km) |
| Altena to Cehegin | 1,022.18 mi (1,645.04 km) |
