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

Return flights

09 Sep - 23 Sep	Ryanair
24 Sep - 01 Oct	Norwegian Air Sweden AOC
24 Sep - 07 Oct	Norwegian Air Sweden AOC
15 Sep - 26 Sep	Ryanair
24 Sep - 24 Sep	Norwegian Air Sweden AOC
15 Sep - 23 Sep	Ryanair
18 Sep - 23 Sep	Ryanair
23 Sep - 29 Sep	Ryanair
26 Sep - 05 Oct	Norwegian Air Sweden AOC
24 Sep - 03 Oct	Ryanair
10 Sep - 17 Sep	Ryanair
03 Sep - 07 Sep	Ryanair
15 Sep - 22 Sep	Finnair
15 Sep - 21 Sep	Norwegian Air Sweden AOC
23 Sep - 14 Oct	Icelandair
24 Sep - 01 Oct	Finnair	direct
26 Sep - 05 Oct	Finnair	direct
24 Sep - 07 Oct	Finnair	direct
24 Sep - 03 Oct	Finnair	direct
23 Sep - 14 Oct	Iberia	direct

Also check the deals for one-way flights from Helsinki to New York 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 Helsinki to New York in September from $493

Return flights