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

Return flights

03 Dec - 07 Dec	airBaltic
14 Dec - 19 Dec	airBaltic
05 Dec - 07 Dec	airBaltic
05 Dec - 10 Dec	airBaltic
14 Dec - 21 Dec	airBaltic
05 Dec - 12 Dec	airBaltic
07 Dec - 12 Dec	KLM
06 Dec - 13 Dec	KLM
05 Dec - 13 Dec	KLM
13 Dec - 06 Jan	KLM
17 Dec - 01 Jan	airBaltic
17 Dec - 05 Jan	KLM
23 Dec - 05 Jan	KLM
25 Dec - 04 Jan	airBaltic
31 Dec - 04 Jan	airBaltic
17 Dec - 04 Jan	airBaltic
13 Dec - 22 Dec	KLM
23 Dec - 01 Jan	KLM
17 Dec - 02 Jan	KLM
13 Dec - 06 Jan	Finnair	direct

Also check the deals for one-way flights from Zurich 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 Zurich to Helsinki in December from $220

Return flights