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

Return flights

19 Dec - 04 Jan	airBaltic
19 Dec - 21 Dec	airBaltic
15 Dec - 21 Dec	airBaltic
15 Dec - 28 Dec	airBaltic
15 Dec - 20 Dec	airBaltic
19 Dec - 21 Dec	Finnair	direct
27 Dec - 06 Jan	KLM
15 Dec - 28 Dec	Finnair	direct
15 Dec - 20 Dec	Finnair	direct
15 Dec - 21 Dec	Finnair	direct
19 Dec - 04 Jan	Finnair	direct
27 Dec - 06 Jan	Finnair	direct

Also check the deals for one-way flights from Prague 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 Prague to Helsinki in December from $222

Return flights