Cheapest return flights from London to Helsinki in August from 155€

Best time to book flights for London (LHR) to Helsinki (HEL) flights at AirHint

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

Return flights

20 Aug - 26 Aug Scandinavian Airlines
21 Aug - 25 Aug Scandinavian Airlines
22 Aug - 25 Aug Scandinavian Airlines
20 Aug - 28 Aug Scandinavian Airlines
20 Aug - 27 Aug Scandinavian Airlines
21 Aug - 28 Aug Scandinavian Airlines
26 Aug - 03 Sep Scandinavian Airlines
20 Aug - 24 Aug Scandinavian Airlines
29 Aug - 02 Sep Scandinavian Airlines
18 Aug - 28 Aug Scandinavian Airlines
22 Aug - 24 Aug Scandinavian Airlines
19 Aug - 20 Aug Scandinavian Airlines
26 Aug - 03 Sep Finnair direct
29 Aug - 02 Sep Finnair direct

Also check the deals for one-way flights from London to Helsinki 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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