| Helsinki to Cosenza | 1,490.33 mi (2,398.46 km) |
| Helsinki to Cossato | 1,220.11 mi (1,963.57 km) |
| Helsinki to Costa Volpino | 1,161.25 mi (1,868.85 km) |
| Helsinki to Creazzo | 1,151.67 mi (1,853.43 km) |
| Helsinki to Crema | 1,198.88 mi (1,929.41 km) |
| Helsinki to Cremona | 1,206.05 mi (1,940.95 km) |
| Helsinki to Crevalcore | 1,209.89 mi (1,947.12 km) |
| Helsinki to Crispiano | 1,391.94 mi (2,240.11 km) |
| Helsinki to Crosia | 1,466.77 mi (2,360.54 km) |
| Helsinki to Crotone | 1,496.02 mi (2,407.62 km) |
| Helsinki to Cuneo | 1,306.50 mi (2,102.61 km) |
| Helsinki to Cuorgne | 1,242.78 mi (2,000.06 km) |
| Helsinki to Cusano Milanino | 1,198.35 mi (1,928.56 km) |
| Helsinki to Cutro | 1,500.78 mi (2,415.28 km) |
| Helsinki to Cutrofiano | 1,415.62 mi (2,278.22 km) |
