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

Return flights

12 Sep - 22 Sep	Air China
12 Sep - 21 Sep	Air China
12 Sep - 20 Sep	Air China
15 Sep - 23 Sep	Finnair	direct
18 Sep - 24 Sep	Finnair	direct
11 Sep - 16 Sep	Lufthansa
12 Sep - 19 Sep	Air China
19 Sep - 29 Sep	Finnair
15 Sep - 22 Sep	Finnair	direct
21 Sep - 29 Sep	Finnair
18 Sep - 01 Oct	Finnair
18 Sep - 01 Oct	Finnair	direct
27 Sep - 04 Oct	Finnair
26 Sep - 12 Oct	Finnair
30 Sep - 13 Oct	Finnair
16 Sep - 18 Oct	KLM
26 Sep - 10 Oct	Finnair
29 Sep - 09 Oct	Finnair
26 Sep - 11 Oct	Finnair
26 Sep - 07 Oct	Finnair

Also check the deals for one-way flights from Hong Kong 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 Hong Kong to Helsinki in September from 507€

Return flights