Cheapest return flights from Lisbon to Helsinki in August from $331

Best time to book flights for Lisbon (LIS) to Helsinki (HEL) flights at AirHint

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

Return flights

16 Aug - 24 Aug KLM
10 Aug - 17 Aug Ryanair
16 Aug - 17 Aug KLM
16 Aug - 20 Aug KLM
11 Aug - 18 Aug Transavia France
16 Aug - 20 Aug Finnair direct
18 Aug - 27 Aug Finnair
16 Aug - 17 Aug Finnair direct
16 Aug - 24 Aug Finnair direct
28 Aug - 31 Aug Finnair

Also check the deals for one-way flights from Lisbon 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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