| Sulmona to Cartagena | 847.26 mi (1,363.54 km) |
| Sulmona to Cartama | 1,054.76 mi (1,697.47 km) |
| Sulmona to Cartaya | 1,164.88 mi (1,874.69 km) |
| Sulmona to Caspe | 722.19 mi (1,162.25 km) |
| Sulmona to Cassa de la Selva | 567.47 mi (913.25 km) |
| Sulmona to Castalla | 803.88 mi (1,293.72 km) |
| Sulmona to Castellbisbal | 616.33 mi (991.88 km) |
| Sulmona to Castelldefels | 618.56 mi (995.48 km) |
| Sulmona to Castello de Ampurias | 555.66 mi (894.24 km) |
| Sulmona to Castellon de la Plana | 740.70 mi (1,192.05 km) |
| Sulmona to Castilleja de la Cuesta | 1,106.56 mi (1,780.84 km) |
| Sulmona to Catarroja | 771.30 mi (1,241.28 km) |
| Sulmona to Catral | 822.29 mi (1,323.34 km) |
| Sulmona to Caudete | 817.08 mi (1,314.96 km) |
| Sulmona to Cehegin | 873.69 mi (1,406.07 km) |
