| Helsinki to Cologno al Serio | 1,185.09 mi (1,907.22 km) |
| Helsinki to Cologno Monzese | 1,197.59 mi (1,927.34 km) |
| Helsinki to Colorno | 1,211.40 mi (1,949.56 km) |
| Helsinki to Comacchio | 1,191.55 mi (1,917.62 km) |
| Helsinki to Comiso | 1,668.00 mi (2,684.39 km) |
| Helsinki to Como | 1,184.50 mi (1,906.26 km) |
| Helsinki to Concordia Sagittaria | 1,111.07 mi (1,788.10 km) |
| Helsinki to Concorezzo | 1,192.57 mi (1,919.25 km) |
| Helsinki to Conegliano | 1,113.63 mi (1,792.21 km) |
| Helsinki to Conselice | 1,209.72 mi (1,946.86 km) |
| Helsinki to Conselve | 1,163.33 mi (1,872.20 km) |
| Helsinki to Conversano | 1,368.30 mi (2,202.06 km) |
| Helsinki to Copertino | 1,406.74 mi (2,263.94 km) |
| Helsinki to Copparo | 1,185.21 mi (1,907.41 km) |
| Helsinki to Corato | 1,363.73 mi (2,194.71 km) |
