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

Return flights

21 Aug - 27 Aug	Ryanair
22 Aug - 27 Aug	Ryanair
25 Aug - 28 Aug	Ryanair
21 Aug - 28 Aug	Ryanair
18 Aug - 25 Aug	Ryanair
22 Aug - 25 Aug	Ryanair
22 Aug - 30 Aug	Ryanair
14 Aug - 20 Aug	Ryanair
14 Aug - 18 Aug	Ryanair
28 Aug - 06 Sep	Ryanair
05 Aug - 12 Aug	Ryanair
28 Aug - 06 Sep	Finnair	direct

Also check the deals for one-way flights from Helsinki to Dublin 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 Dublin in August from $178

Return flights