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

Return flights

14 Aug - 21 Aug	Finnair
04 Aug - 21 Aug	Finnair
17 Aug - 30 Sep	Finnair
19 Aug - 16 Sep	Finnair
19 Aug - 19 Sep	Finnair
25 Aug - 04 Sep	Finnair
25 Aug - 10 Sep	Finnair
26 Aug - 10 Sep	Finnair
25 Aug - 09 Sep	Finnair
24 Aug - 09 Sep	Finnair
27 Aug - 10 Sep	Finnair
03 Aug - 09 Sep	Finnair
06 Aug - 20 Aug	Lufthansa
19 Aug - 26 Aug	Finnair
10 Aug - 22 Aug	Finnair
12 Aug - 25 Aug	Finnair
13 Aug - 25 Aug	Finnair
17 Aug - 25 Aug	Finnair
06 Aug - 23 Aug	Finnair
03 Aug - 25 Aug	Finnair

Also check the deals for one-way flights from New York to Warsaw 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 Warsaw in August from 325€

Return flights