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

Return flights

22 Sep - 26 Sep	SriLankan Airlines
23 Sep - 26 Sep	SriLankan Airlines
22 Sep - 29 Sep	SriLankan Airlines
22 Sep - 25 Sep	SriLankan Airlines
27 Sep - 03 Oct	Air India
26 Sep - 29 Sep	Air France
20 Sep - 23 Sep	Air India
19 Sep - 23 Sep	Air India
20 Sep - 22 Sep	Air India
23 Sep - 30 Sep	SriLankan Airlines
19 Sep - 22 Sep	Philippine Airlines
25 Sep - 05 Oct	Japan Airlines
29 Sep - 05 Oct	Japan Airlines
30 Sep - 07 Oct	Finnair	direct
25 Sep - 05 Oct	Japan Airlines	direct
25 Sep - 02 Oct	Lufthansa
26 Sep - 02 Oct	Lufthansa
28 Sep - 02 Oct	Air France
28 Sep - 05 Oct	Air France
28 Sep - 03 Oct	Air France

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 $1220

Return flights