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

Return flights

03 Sep - 08 Sep	China Eastern
05 Sep - 17 Sep	Air China
06 Sep - 17 Sep	Air China
17 Sep - 24 Sep	China Eastern
13 Sep - 20 Sep	Air China
08 Sep - 15 Sep	Air China
20 Sep - 26 Sep	China Eastern
25 Sep - 30 Sep	KLM
08 Sep - 30 Sep	KLM
04 Sep - 09 Sep	Air France
25 Sep - 12 Oct	HK Express
25 Sep - 01 Oct	KLM
25 Sep - 05 Oct	Air France
30 Sep - 05 Oct	Air France
25 Sep - 02 Oct	Singapore Airlines
30 Sep - 03 Oct	Singapore Airlines
24 Sep - 03 Oct	Singapore Airlines
29 Sep - 12 Oct	British Airways
30 Sep - 05 Oct	Japan Airlines	direct
27 Sep - 12 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 743€

Return flights