Cheapest one-way flights from London to Helsinki in May from $111

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

One-Way flights

05 May Scandinavian Airlines
20 May Scandinavian Airlines
28 May Scandinavian Airlines
22 May Scandinavian Airlines
05 May Finnair direct
31 May Finnair direct
24 May Finnair direct
22 May Finnair direct
28 May Finnair direct
20 May Finnair direct

Also check the deals for return flights from London to Helsinki in May.

Skyscanner

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.