| Signa to Cartagena | 762.41 mi (1,226.98 km) |
| Signa to Cartama | 960.41 mi (1,545.62 km) |
| Signa to Cartaya | 1,055.32 mi (1,698.38 km) |
| Signa to Caspe | 593.26 mi (954.76 km) |
| Signa to Cassa de la Selva | 436.61 mi (702.65 km) |
| Signa to Castalla | 708.22 mi (1,139.77 km) |
| Signa to Castellbisbal | 489.82 mi (788.29 km) |
| Signa to Castelldefels | 495.34 mi (797.17 km) |
| Signa to Castello de Ampurias | 418.67 mi (673.79 km) |
| Signa to Castellon de la Plana | 629.32 mi (1,012.80 km) |
| Signa to Castilleja de la Cuesta | 1,000.07 mi (1,609.45 km) |
| Signa to Catarroja | 666.26 mi (1,072.24 km) |
| Signa to Catral | 731.50 mi (1,177.24 km) |
| Signa to Caudete | 718.36 mi (1,156.08 km) |
| Signa to Cehegin | 778.35 mi (1,252.64 km) |
