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

Return flights

16 Sep - 23 Sep	China Eastern
18 Sep - 22 Sep	China Eastern
19 Sep - 26 Sep	Air India
15 Sep - 30 Sep	China Eastern
20 Sep - 24 Sep	SriLankan Airlines
20 Sep - 27 Sep	Thai Lion Air
29 Sep - 30 Oct	Qatar Airways
25 Sep - 30 Sep	KLM
24 Sep - 30 Sep	KLM
24 Sep - 29 Sep	Air France
20 Sep - 30 Sep	Air France
25 Sep - 01 Oct	Scandinavian Airlines
30 Sep - 05 Oct	Finnair	direct
25 Sep - 05 Oct	Lufthansa
26 Sep - 04 Oct	Lufthansa
24 Sep - 01 Oct	KLM
23 Sep - 07 Oct	Air France
24 Sep - 03 Oct	Lufthansa
30 Sep - 04 Oct	KLM
30 Sep - 12 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 847€

Return flights