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

Return flights

25 Aug - 29 Aug	Norwegian Air Sweden AOC
26 Aug - 29 Aug	Norwegian Air Sweden AOC
27 Aug - 31 Aug	Lufthansa
25 Aug - 01 Sep	Lufthansa
25 Aug - 27 Aug	Norwegian Air Sweden AOC
28 Aug - 01 Sep	Lufthansa
30 Aug - 06 Sep	Scandinavian Airlines
21 Aug - 28 Aug	Lufthansa
22 Aug - 26 Aug	Lufthansa
26 Aug - 30 Aug	Norwegian Air Sweden AOC
28 Aug - 31 Aug	Finnair
29 Aug - 31 Aug	Lufthansa
20 Aug - 24 Aug	Lufthansa
28 Aug - 01 Sep	Finnair	direct
30 Aug - 01 Sep	Scandinavian Airlines
30 Aug - 06 Sep	Finnair	direct

Also check the deals for one-way flights from Helsinki to Prague in August.

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 August from $223

Return flights