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

Return flights

08 Sep - 12 Sep	Singapore Airlines
08 Sep - 14 Sep	Singapore Airlines
05 Sep - 12 Sep	HK Express
16 Sep - 24 Sep	Singapore Airlines
21 Sep - 24 Sep	Singapore Airlines
11 Sep - 16 Sep	Singapore Airlines
04 Sep - 07 Sep	Finnair	direct
03 Sep - 07 Sep	Finnair	direct
03 Sep - 10 Sep	Finnair	direct
23 Sep - 07 Oct	Finnair	direct
10 Sep - 14 Sep	Singapore Airlines
23 Sep - 02 Oct	HK Express
25 Sep - 06 Oct	Japan Airlines
24 Sep - 02 Oct	HK Express
29 Sep - 02 Oct	Finnair	direct
24 Sep - 01 Oct	HK Express
25 Sep - 09 Oct	Finnair
27 Sep - 02 Oct	HK Express
21 Sep - 12 Oct	KLM
26 Sep - 02 Oct	Turkish Airlines

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 $1063

Return flights