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

Return flights

29 Aug - 08 Sep	Ryanair
29 Aug - 05 Sep	Ryanair
29 Aug - 31 Aug	Ryanair
21 Aug - 27 Aug	Ryanair
15 Aug - 22 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
20 Aug - 24 Aug	Ryanair
14 Aug - 21 Aug	Ryanair
23 Aug - 30 Aug	Ryanair
11 Aug - 14 Aug	Ryanair
20 Aug - 26 Aug	Ryanair
11 Aug - 15 Aug	Ryanair

Also check the deals for one-way flights from Cork to Helsinki 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 Cork to Helsinki in August from $175

Return flights