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

Return flights

06 Dec - 10 Dec	Lufthansa
02 Dec - 09 Dec	Lufthansa
06 Dec - 11 Dec	Lufthansa
10 Dec - 14 Dec	airBaltic
04 Dec - 08 Dec	airBaltic
07 Dec - 11 Dec	airBaltic
07 Dec - 10 Dec	airBaltic
04 Dec - 07 Dec	airBaltic
01 Dec - 04 Dec	airBaltic
01 Dec - 02 Dec	airBaltic
15 Dec - 04 Jan	airBaltic
31 Dec - 07 Jan	airBaltic
12 Dec - 11 Jan	Scandinavian Airlines
31 Dec - 05 Jan	airBaltic
30 Dec - 06 Jan	Finnair	direct
31 Dec - 07 Jan	Finnair	direct
30 Dec - 04 Jan	Finnair
26 Dec - 01 Jan	Norwegian Air Sweden AOC
29 Dec - 04 Jan	Finnair
27 Dec - 04 Jan	airBaltic

Also check the deals for one-way flights from Helsinki to Prague 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 Prague in December from $169

Return flights