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

Return flights

30 Sep - 13 Oct	Ryanair
30 Sep - 04 Oct	Ryanair
17 Sep - 24 Sep	Ryanair
09 Sep - 21 Sep	Ryanair
30 Sep - 16 Oct	Ryanair
23 Sep - 07 Oct	Ryanair
23 Sep - 25 Oct	Ryanair
10 Sep - 16 Sep	Ryanair
09 Sep - 16 Sep	Ryanair
09 Sep - 23 Sep	Ryanair
19 Sep - 02 Oct	Ryanair
12 Sep - 20 Sep	Ryanair
09 Sep - 18 Sep	Ryanair
30 Sep - 14 Oct	Ryanair
16 Sep - 26 Sep	Ryanair
03 Sep - 18 Sep	Ryanair
10 Sep - 20 Sep	Ryanair
03 Sep - 04 Oct	Ryanair
23 Sep - 26 Oct	Ryanair
26 Sep - 04 Oct	Ryanair

Also check the deals for one-way flights from Warsaw 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 Warsaw to New York in September from $504

Return flights