| Alton to Campo de Criptana | 818.38 mi (1,317.05 km) |
| Alton to Campos del Puerto | 832.37 mi (1,339.56 km) |
| Alton to Canals | 842.37 mi (1,355.67 km) |
| Alton to Candelaria | 1,766.42 mi (2,842.78 km) |
| Alton to Canet de Mar | 681.68 mi (1,097.06 km) |
| Alton to Cangas | 715.79 mi (1,151.95 km) |
| Alton to Cangas de Narcea | 609.62 mi (981.09 km) |
| Alton to Canovellas | 676.49 mi (1,088.71 km) |
| Alton to Canteras | 935.36 mi (1,505.32 km) |
| Alton to Cantillana | 965.69 mi (1,554.12 km) |
| Alton to Capdepera | 819.11 mi (1,318.24 km) |
| Alton to Carballo | 656.02 mi (1,055.76 km) |
| Alton to Carcagente | 831.42 mi (1,338.04 km) |
| Alton to Cardedeu | 675.80 mi (1,087.59 km) |
| Alton to Carlet | 824.12 mi (1,326.30 km) |
