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

One-Way flights

01 Dec	Scandinavian Airlines	direct
06 Dec	Scandinavian Airlines	direct
05 Dec	Scandinavian Airlines	direct
09 Dec	Scandinavian Airlines	direct
02 Dec	Scandinavian Airlines	direct
16 Dec	Scandinavian Airlines	direct
17 Dec	Scandinavian Airlines	direct
18 Dec	Scandinavian Airlines	direct
15 Dec	Scandinavian Airlines	direct
30 Dec	Norwegian Air Sweden AOC

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 51€

One-Way flights