AirHint found the following cheapest one-way flights from Copenhagen (CPH) to Helsinki (HEL) in December 2025 (see full year).

One-Way flights

04 Dec	Scandinavian Airlines	direct
01 Dec	Scandinavian Airlines	direct
06 Dec	Scandinavian Airlines	direct
07 Dec	Scandinavian Airlines	direct
16 Dec	Scandinavian Airlines	direct
17 Dec	Scandinavian Airlines	direct
18 Dec	Scandinavian Airlines	direct
11 Dec	Scandinavian Airlines	direct
12 Dec	Scandinavian Airlines	direct
13 Dec	Scandinavian Airlines	direct

Also check the deals for return flights from Copenhagen to Helsinki in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest one-way flights from Copenhagen to Helsinki in December from $69

One-Way flights