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

Return flights

16 Oct - 23 Oct	Scandinavian Airlines
01 Oct - 07 Oct	Icelandair
01 Oct - 08 Oct	Icelandair
11 Oct - 18 Oct	Scandinavian Airlines
24 Oct - 01 Nov	Icelandair
06 Oct - 13 Oct	Scandinavian Airlines
16 Oct - 24 Oct	Delta
01 Oct - 05 Oct	Scandinavian Airlines
23 Oct - 30 Oct	Finnair	direct
02 Oct - 07 Oct	Air France
03 Oct - 07 Oct	Air France
26 Oct - 02 Nov	Finnair	direct
24 Oct - 01 Nov	Finnair	direct
26 Oct - 01 Nov	British Airways	direct

Also check the deals for one-way flights from New York to Helsinki in October.

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 October from 324€

Return flights