Cheapest return flights from Helsinki to Lisbon in August from $276

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

Return flights

25 Aug - 11 Sep Ryanair
27 Aug - 04 Sep Norwegian Air Sweden AOC
29 Aug - 01 Sep Scandinavian Airlines
20 Aug - 27 Aug KLM
27 Aug - 31 Aug Norwegian Air Sweden AOC
09 Aug - 15 Aug Ryanair
21 Aug - 31 Aug Norwegian Air Sweden AOC
11 Aug - 15 Aug Ryanair
06 Aug - 14 Aug Lufthansa
27 Aug - 01 Sep KLM
08 Aug - 15 Aug Ryanair
13 Aug - 20 Aug Lufthansa
14 Aug - 17 Aug Norwegian Air Sweden AOC
21 Aug - 27 Aug Lufthansa
29 Aug - 07 Sep Scandinavian Airlines
25 Aug - 01 Sep Ryanair
30 Aug - 06 Sep airBaltic
31 Aug - 03 Sep airBaltic
27 Aug - 04 Sep Finnair direct
25 Aug - 11 Sep Finnair direct

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

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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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