Cheapest return flights from Porto to Helsinki in August from $284

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

Return flights

30 Aug - 08 Sep Norwegian Air Sweden AOC
30 Aug - 06 Sep Norwegian Air Sweden AOC
28 Aug - 31 Aug Ryanair
12 Aug - 19 Aug Vueling Airlines
20 Aug - 28 Aug Ryanair
19 Aug - 26 Aug Vueling Airlines
20 Aug - 27 Aug Ryanair
11 Aug - 16 Aug Ryanair
10 Aug - 15 Aug Ryanair
04 Aug - 07 Aug Ryanair
21 Aug - 25 Aug Ryanair
22 Aug - 28 Aug Norwegian

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

Skyscanner

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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