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

Return flights

28 Dec - 31 Dec	Finnair
24 Dec - 04 Jan	Finnair	direct
28 Dec - 31 Dec	Finnair	direct
23 Dec - 04 Jan	Scandinavian Airlines
23 Dec - 20 Jan	Icelandair	direct
25 Dec - 29 Dec	Finnair	direct
22 Dec - 01 Jan	Wizz Air Malta
22 Dec - 01 Jan	Icelandair	direct
23 Dec - 04 Jan	Finnair	direct
19 Dec - 25 Dec	Finnair	direct

Also check the deals for one-way flights from Reykjavik 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 return flights from Reykjavik to Helsinki in December from $382

Return flights