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

Return flights

20 Apr - 27 Apr	KLM
03 Apr - 06 Apr	KLM
16 Apr - 21 Apr	Lufthansa
02 Apr - 06 Apr	KLM
04 Apr - 06 Apr	KLM
11 Apr - 13 Apr	KLM
08 Apr - 08 May	KLM
10 Apr - 12 Apr	KLM
07 Apr - 09 Apr	KLM
08 Apr - 10 Apr	KLM

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

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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Cheapest return flights from London to Helsinki in April from $265

Return flights