Cheapest return flights from London to Helsinki in May from $183

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

12 May - 14 May Scandinavian Airlines
15 May - 19 May Scandinavian Airlines
19 May - 27 May Scandinavian Airlines
07 May - 12 May Scandinavian Airlines
07 May - 14 May Scandinavian Airlines
22 May - 27 May Scandinavian Airlines
01 May - 08 May Scandinavian Airlines
15 May - 22 May Scandinavian Airlines
12 May - 27 May Scandinavian Airlines
13 May - 27 May Scandinavian Airlines
28 May - 05 Jun Scandinavian Airlines
28 May - 11 Jun Scandinavian Airlines
20 May - 05 Jun Scandinavian Airlines
28 May - 04 Jun Scandinavian Airlines
27 May - 03 Jun Scandinavian Airlines
28 May - 03 Jun Scandinavian Airlines
28 May - 02 Jun Scandinavian Airlines
22 May - 03 Jun Scandinavian Airlines
29 May - 05 Jun Scandinavian Airlines
29 May - 04 Jun Scandinavian Airlines

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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