AirHint found the following cheapest one-way flights from Barcelona (BCN) to Helsinki (HEL) in August 2025 (see full year).

One-Way flights

28 Aug	Norwegian Air Sweden AOC	direct
27 Aug	Norwegian Air Sweden AOC	direct
29 Aug	Norwegian Air Sweden AOC	direct
31 Aug	Norwegian Air Sweden AOC
25 Aug	Norwegian Air Sweden AOC	direct
31 Aug	Norwegian Air Sweden AOC	direct
22 Aug	Norwegian Air Sweden AOC	direct
20 Aug	Norwegian Air Sweden AOC	direct
26 Aug	Vueling Airlines
30 Aug	Norwegian Air Sweden AOC

Also check the deals for return flights from Barcelona 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 one-way flights from Barcelona to Helsinki in August from 67€

One-Way flights