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

Return flights

21 Aug - 28 Aug	Icelandair
20 Aug - 28 Aug	Icelandair
12 Aug - 28 Aug	Icelandair
26 Aug - 04 Sep	Delta
18 Aug - 03 Sep	Air France
13 Aug - 20 Aug	Air France
11 Aug - 18 Aug	Air France
20 Aug - 27 Aug	Delta
08 Aug - 15 Aug	Air France
07 Aug - 14 Aug	Air France
18 Aug - 03 Sep	Finnair	direct
28 Aug - 04 Sep	Scandinavian Airlines
24 Aug - 29 Aug	Scandinavian Airlines
18 Aug - 25 Aug	Scandinavian Airlines
29 Aug - 08 Sep	Norse Atlantic Airways
30 Aug - 06 Sep	Scandinavian Airlines
08 Aug - 07 Sep	Air France
29 Aug - 08 Sep	Finnair	direct

Also check the deals for one-way flights from New York 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 New York to Helsinki in August from 344€

Return flights