Cheapest return flights from London to Helsinki in May from $188

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 May 2025 (see full year).

Return flights

19 May - 27 May Scandinavian Airlines
06 May - 07 May Scandinavian Airlines
20 May - 21 May Scandinavian Airlines
15 May - 17 May Scandinavian Airlines
01 May - 06 May Scandinavian Airlines
13 May - 19 May Scandinavian Airlines
21 May - 25 May Scandinavian Airlines
15 May - 19 May Scandinavian Airlines
13 May - 20 May Scandinavian Airlines
01 May - 04 May Scandinavian Airlines
30 May - 22 Jun Finnair direct
31 May - 06 Jun Finnair direct
30 May - 03 Jun Finnair direct
30 May - 01 Jun Finnair direct
29 May - 01 Jun Finnair direct
29 May - 03 Jun Finnair direct
31 May - 07 Jun Finnair direct
29 May - 05 Jun Finnair direct
30 May - 02 Jun Finnair direct
21 May - 07 Jun Finnair direct

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

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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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