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

Return flights

15 Sep - 29 Sep	easyJet
21 Sep - 24 Sep	easyJet
15 Sep - 22 Sep	easyJet
14 Sep - 28 Sep	easyJet
01 Sep - 05 Sep	KLM
01 Sep - 08 Sep	KLM
25 Sep - 28 Sep	KLM
13 Sep - 17 Sep	KLM
30 Sep - 05 Oct	KLM
30 Sep - 07 Oct	KLM
19 Sep - 21 Sep	easyJet
07 Sep - 18 Sep	easyJet
30 Sep - 07 Oct	Finnair	direct
30 Sep - 05 Oct	Finnair	direct

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

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 Geneva to Helsinki in September from 182€

Return flights