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

Return flights

27 Aug - 17 Sep	Finnair
26 Aug - 10 Sep	Lufthansa
19 Aug - 24 Sep	Lufthansa
26 Aug - 30 Sep	Finnair
18 Aug - 08 Sep	Lufthansa
25 Aug - 05 Sep	Lufthansa
18 Aug - 04 Sep	SWISS
20 Aug - 08 Sep	Lufthansa
17 Aug - 03 Sep	Brussels Airlines
19 Aug - 09 Sep	Brussels Airlines
20 Aug - 27 Aug	Brussels Airlines
17 Aug - 27 Aug	Brussels Airlines
18 Aug - 28 Aug	Brussels Airlines
21 Aug - 28 Aug	Brussels Airlines
17 Aug - 29 Aug	Finnair
25 Aug - 29 Aug	Finnair
24 Aug - 29 Aug	Finnair
27 Aug - 30 Aug	Norse Atlantic Airways
18 Aug - 25 Aug	Brussels Airlines
21 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 320€

Return flights