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

Return flights

25 Sep - 29 Sep	Air India
07 Sep - 12 Sep	Air China
02 Sep - 08 Sep	China Southern
02 Sep - 07 Sep	China Southern
19 Sep - 29 Sep	Air India
27 Sep - 11 Oct	Vietnam Airlines
28 Sep - 02 Oct	Thai Airways
25 Sep - 06 Oct	Finnair
08 Sep - 16 Sep	Air France
08 Sep - 15 Sep	Singapore Airlines
19 Sep - 25 Sep	Singapore Airlines
21 Sep - 25 Sep	Singapore Airlines
07 Sep - 11 Sep	Singapore Airlines
29 Sep - 13 Oct	Vietnam Airlines
23 Sep - 01 Oct	Air France
25 Sep - 02 Oct	Finnair
23 Sep - 01 Oct	Finnair	direct
28 Sep - 02 Oct	Japan Airlines	direct
21 Sep - 02 Oct	Japan Airlines	direct
23 Sep - 02 Oct	Japan Airlines	direct

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 888€

Return flights