| Helsinki to Cartagena | 1,927.72 mi (3,102.37 km) |
| Helsinki to Cartama | 2,077.65 mi (3,343.65 km) |
| Helsinki to Cartaya | 2,113.71 mi (3,401.69 km) |
| Helsinki to Caspe | 1,683.74 mi (2,709.73 km) |
| Helsinki to Cassa de la Selva | 1,569.73 mi (2,526.24 km) |
| Helsinki to Castalla | 1,858.98 mi (2,991.74 km) |
| Helsinki to Castellbisbal | 1,617.02 mi (2,602.34 km) |
| Helsinki to Castelldefels | 1,629.03 mi (2,621.67 km) |
| Helsinki to Castello de Ampurias | 1,542.46 mi (2,482.35 km) |
| Helsinki to Castellon de la Plana | 1,758.61 mi (2,830.21 km) |
| Helsinki to Castilleja de la Cuesta | 2,076.65 mi (3,342.05 km) |
| Helsinki to Catarroja | 1,803.25 mi (2,902.05 km) |
| Helsinki to Catral | 1,889.04 mi (3,040.12 km) |
| Helsinki to Caudete | 1,860.62 mi (2,994.38 km) |
| Helsinki to Cehegin | 1,918.79 mi (3,088.00 km) |
