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

Return flights

31 Dec - 06 Jan	Finnair
18 Dec - 09 Jan	Norwegian
30 Dec - 04 Jan	airBaltic
31 Dec - 02 Jan	airBaltic
31 Dec - 04 Jan	airBaltic
30 Dec - 14 Jan	airBaltic
22 Dec - 21 Jan	Norwegian Air Sweden AOC
30 Dec - 06 Jan	Finnair
31 Dec - 01 Jan	Finnair
28 Dec - 06 Jan	Norwegian Air Sweden AOC
23 Dec - 31 Dec	airBaltic
19 Dec - 31 Dec	Scandinavian Airlines	direct
25 Dec - 31 Dec	airBaltic
20 Dec - 23 Dec	Finnair
22 Dec - 31 Dec	Scandinavian Airlines
26 Dec - 31 Dec	Finnair	direct
22 Dec - 29 Dec	Scandinavian Airlines
24 Dec - 25 Dec	airBaltic
22 Dec - 31 Dec	Finnair	direct
24 Dec - 29 Dec	airBaltic

Also check the deals for one-way flights from Helsinki to Copenhagen 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 return flights from Helsinki to Copenhagen in December from $206

Return flights