Cheapest return flights from London to Helsinki in April from 150€

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

Return flights

15 Apr - 21 Apr Scandinavian Airlines
02 Apr - 07 Apr Scandinavian Airlines
01 Apr - 08 Apr Scandinavian Airlines
16 Apr - 23 Apr Scandinavian Airlines
01 Apr - 07 Apr Scandinavian Airlines
04 Apr - 18 Apr KLM
04 Apr - 11 Apr KLM
02 Apr - 12 Apr KLM
16 Apr - 23 Apr Finnair direct
03 Apr - 06 Apr Scandinavian Airlines

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

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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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