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

Return flights

17 Sep - 24 Sep	Thai AirAsia X
30 Sep - 14 Oct	China Eastern
18 Sep - 24 Sep	China Eastern
18 Sep - 22 Sep	China Eastern
15 Sep - 17 Sep	Air China
16 Sep - 20 Sep	SriLankan Airlines
21 Sep - 05 Oct	SriLankan Airlines
20 Sep - 27 Sep	Zipair
20 Sep - 24 Sep	Zipair
20 Sep - 28 Sep	Zipair
25 Sep - 30 Sep	KLM
24 Sep - 30 Sep	KLM
19 Sep - 02 Oct	China Eastern
24 Sep - 03 Oct	Lufthansa
25 Sep - 01 Oct	Scandinavian Airlines
30 Sep - 05 Oct	Finnair	direct
25 Sep - 05 Oct	Lufthansa
26 Sep - 02 Oct	Lufthansa
24 Sep - 01 Oct	KLM
30 Sep - 04 Oct	KLM

Also check the deals for one-way flights from Tokyo 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 Tokyo to Helsinki in September from $1027

Return flights