Cheapest return LGW–HEL flights, September

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

Return flights

04 Sep - 21 Sep Norwegian Air Sweden AOC direct
24 Sep - 27 Sep Norwegian Air Sweden AOC direct
04 Sep - 08 Sep Norwegian Air Sweden AOC
10 Sep - 27 Sep Norwegian Air Sweden AOC direct
10 Sep - 28 Sep Norwegian Air Sweden AOC direct
10 Sep - 21 Sep Norwegian Air Sweden AOC direct
25 Sep - 27 Sep airBaltic
25 Sep - 28 Sep airBaltic
10 Sep - 18 Sep Norwegian Air Sweden AOC direct
19 Sep - 21 Sep airBaltic
28 Sep - 05 Oct Norwegian Air Sweden AOC direct
28 Sep - 16 Oct Norwegian Air Sweden AOC direct
24 Sep - 05 Oct Norwegian Air Sweden AOC direct
24 Sep - 04 Oct Norwegian Air Sweden AOC direct
28 Sep - 01 Oct Norwegian Air Sweden AOC direct
24 Sep - 01 Oct Norwegian Air Sweden AOC direct
17 Sep - 05 Oct Norwegian Air Sweden AOC direct
17 Sep - 04 Oct Norwegian Air Sweden AOC direct
10 Sep - 01 Oct Norwegian Air Sweden AOC direct
26 Sep - 03 Oct airBaltic

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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