Cheapest return flights from London to Helsinki in September from 50€

AirHint found the following cheapest return flights from London (LON) to Helsinki (HEL) in September 2025 (see full year).

Return flights

23 Sep - 13 Oct Ryanair direct
23 Sep - 27 Sep Ryanair direct
25 Sep - 13 Oct Ryanair direct
25 Sep - 27 Sep Ryanair direct
17 Sep - 27 Sep Ryanair direct
23 Sep - 24 Sep Ryanair direct
23 Sep - 29 Sep Ryanair direct
25 Sep - 29 Sep Ryanair direct
27 Sep - 13 Oct Ryanair direct
16 Sep - 27 Sep Ryanair direct
18 Sep - 27 Sep Ryanair direct
30 Sep - 13 Oct Ryanair direct
25 Sep - 15 Oct Ryanair direct
17 Sep - 24 Sep Ryanair direct
17 Sep - 29 Sep Ryanair direct
24 Sep - 13 Oct Ryanair direct
27 Sep - 15 Oct Ryanair direct
30 Sep - 18 Oct Ryanair direct
23 Sep - 05 Oct Ryanair direct
30 Sep - 20 Oct Ryanair direct

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

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.

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