| Alton to Castrovillari | 1,137.37 mi (1,830.42 km) |
| Alton to Catania | 1,227.43 mi (1,975.37 km) |
| Alton to Catanzaro | 1,199.58 mi (1,930.54 km) |
| Alton to Cattolica | 807.13 mi (1,298.95 km) |
| Alton to Cava de' Tirreni | 1,039.49 mi (1,672.90 km) |
| Alton to Cavallino | 1,183.58 mi (1,904.79 km) |
| Alton to Cavarzere | 729.80 mi (1,174.50 km) |
| Alton to Cave | 921.12 mi (1,482.40 km) |
| Alton to Cavriago | 693.30 mi (1,115.76 km) |
| Alton to Cavriglia | 784.59 mi (1,262.67 km) |
| Alton to Cazzago San Martino | 633.80 mi (1,020.00 km) |
| Alton to Ceccano | 947.69 mi (1,525.15 km) |
| Alton to Cecina | 762.31 mi (1,226.81 km) |
| Alton to Cefalu | 1,163.91 mi (1,873.14 km) |
| Alton to Ceglie Messapico | 1,141.40 mi (1,836.90 km) |
