Cheapest return flights from London to Helsinki in September from 172€

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

Return flights

01 Sep - 07 Sep Scandinavian Airlines
17 Sep - 21 Sep Scandinavian Airlines
05 Sep - 08 Sep Scandinavian Airlines
12 Sep - 19 Sep KLM
05 Sep - 08 Sep Finnair direct
17 Sep - 21 Sep Finnair direct
12 Sep - 19 Sep Finnair direct
01 Sep - 07 Sep Finnair direct

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

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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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