Cheapest return flights from London to Helsinki in August from $291

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

Return flights

18 Aug - 25 Aug KLM
29 Aug - 04 Sep KLM
15 Aug - 22 Aug KLM
19 Aug - 26 Aug KLM
26 Aug - 30 Aug KLM
21 Aug - 30 Aug KLM
27 Aug - 04 Sep Lufthansa
14 Aug - 23 Aug KLM
21 Aug - 23 Aug KLM
20 Aug - 23 Aug KLM
07 Aug - 17 Aug KLM
02 Aug - 10 Aug KLM

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

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