Cheapest return flights from London to Helsinki in May from 148€

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

Return flights

05 May - 07 May Scandinavian Airlines
05 May - 06 May Scandinavian Airlines
14 May - 19 May Scandinavian Airlines
06 May - 08 May Scandinavian Airlines
05 May - 12 May Scandinavian Airlines
13 May - 19 May Scandinavian Airlines
02 May - 03 May Scandinavian Airlines
14 May - 20 May Scandinavian Airlines
01 May - 03 May Scandinavian Airlines
01 May - 06 May Scandinavian Airlines
26 May - 03 Jun Scandinavian Airlines
15 May - 15 Jun Scandinavian Airlines
26 May - 24 Jun Scandinavian Airlines
30 May - 03 Jun Scandinavian Airlines
29 May - 01 Jun Scandinavian Airlines
30 May - 03 Jun Finnair direct
30 May - 08 Jun Scandinavian Airlines
23 May - 06 Jun Scandinavian Airlines
24 May - 07 Jun KLM
26 May - 03 Jun Finnair direct

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

Powered by

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.

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki

Feel free to contact us with any feedback or request another flight research.