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

Return flights

23 Dec - 05 Jan	airBaltic
08 Dec - 10 Dec	airBaltic
26 Dec - 11 Jan	airBaltic
31 Dec - 07 Jan	airBaltic
31 Dec - 06 Jan	airBaltic
05 Dec - 06 Dec	airBaltic
05 Dec - 08 Dec	airBaltic
08 Dec - 08 Dec	airBaltic
06 Dec - 09 Dec	airBaltic
03 Dec - 07 Dec	airBaltic
08 Dec - 09 Dec	airBaltic
05 Dec - 07 Dec	airBaltic
02 Dec - 03 Dec	airBaltic
29 Dec - 11 Jan	airBaltic
22 Dec - 25 Dec	airBaltic
29 Dec - 02 Jan	airBaltic
25 Dec - 08 Jan	airBaltic
30 Dec - 06 Jan	airBaltic
29 Dec - 04 Jan	airBaltic
29 Dec - 05 Jan	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 104€

Return flights