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

Return flights

10 Dec - 17 Dec	Lufthansa
23 Dec - 30 Dec	airBaltic
01 Dec - 05 Dec	Lufthansa
06 Dec - 09 Dec	airBaltic
05 Dec - 07 Dec	airBaltic
05 Dec - 08 Dec	airBaltic
08 Dec - 11 Dec	airBaltic
08 Dec - 10 Dec	airBaltic
07 Dec - 10 Dec	airBaltic
15 Dec - 21 Dec	airBaltic
29 Dec - 01 Jan	airBaltic
28 Dec - 04 Jan	airBaltic
26 Dec - 02 Jan	airBaltic
30 Dec - 03 Jan	Lufthansa
27 Dec - 02 Jan	airBaltic
26 Dec - 02 Jan	Finnair	direct
28 Dec - 04 Jan	Finnair	direct
27 Dec - 02 Jan	Finnair	direct
30 Dec - 03 Jan	Finnair	direct

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 $171

Return flights