Cheapest return flights from London to Helsinki in September from 81€

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

Return flights

23 Sep - 24 Sep Ryanair direct
23 Sep - 28 Sep Ryanair direct
16 Sep - 24 Sep Ryanair direct
16 Sep - 28 Sep Ryanair direct
30 Sep - 19 Oct Ryanair direct
25 Sep - 28 Sep Ryanair direct
17 Sep - 24 Sep Ryanair direct
17 Sep - 28 Sep Ryanair direct
08 Sep - 24 Sep Ryanair direct
08 Sep - 28 Sep Ryanair direct
12 Sep - 24 Sep Ryanair direct
23 Sep - 04 Oct Ryanair direct
16 Sep - 04 Oct Ryanair direct
30 Sep - 04 Oct Ryanair direct
28 Sep - 19 Oct Norwegian Air Sweden AOC direct
25 Sep - 04 Oct Ryanair direct
17 Sep - 04 Oct Ryanair direct
20 Sep - 04 Oct Ryanair direct
22 Sep - 04 Oct Ryanair direct
13 Sep - 04 Oct Ryanair direct

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

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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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