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

Return flights

28 Aug - 10 Sep	T'way Air
17 Aug - 21 Aug	T'way Air
13 Aug - 19 Aug	KLM
29 Aug - 11 Sep	T'way Air
21 Aug - 26 Aug	Turkish Airlines
13 Aug - 18 Aug	KLM
14 Aug - 29 Aug	China Eastern
27 Aug - 03 Sep	Turkish Airlines
02 Aug - 27 Aug	SriLankan Airlines
12 Aug - 19 Aug	KLM
18 Aug - 23 Aug	KLM
18 Aug - 24 Aug	KLM
29 Aug - 03 Sep	Turkish Airlines
28 Aug - 04 Sep	KLM
02 Aug - 26 Aug	SriLankan Airlines
28 Aug - 07 Sep	Finnair
30 Aug - 03 Sep	Finnair
30 Aug - 04 Sep	Finnair
22 Aug - 02 Sep	Turkish Airlines
29 Aug - 07 Sep	Finnair

Also check the deals for one-way flights from Tokyo to Helsinki in August.

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 August from $965

Return flights