Cheapest return LIS–HEL flights, August

AirHint found the following cheapest return flights from Lisbon (LIS) to Helsinki (HEL) in August 2026 (see full year).

Return flights

12 Aug - 22 Aug Ryanair
30 Aug - 04 Sep Ryanair
23 Aug - 27 Aug Ryanair
03 Aug - 17 Aug Ryanair
16 Aug - 19 Aug Finnair direct
06 Aug - 09 Aug Ryanair
24 Aug - 28 Aug Finnair
23 Aug - 27 Aug Finnair direct
10 Aug - 23 Aug Finnair
10 Aug - 23 Aug Finnair direct
17 Aug - 23 Aug Ryanair
30 Aug - 04 Sep Finnair direct

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

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