AirHint found the following cheapest return flights from Newark (EWR) to Warsaw (WAW) in December 2025 (see full year).

Return flights

03 Dec - 08 Dec	Air Canada
28 Dec - 09 Jan	Air Canada
28 Dec - 10 Jan	Air Canada
28 Dec - 08 Jan	Air Canada
04 Dec - 08 Dec	Air Canada
04 Dec - 11 Dec	United
11 Dec - 25 Dec	United
04 Dec - 11 Dec	LOT	direct
09 Dec - 16 Dec	United
10 Dec - 31 Dec	Air Canada
11 Dec - 14 Dec	Austrian Airlines
08 Dec - 22 Dec	SWISS
09 Dec - 16 Dec	LOT	direct
02 Dec - 05 Jan	TAP
17 Dec - 16 Jan	TAP
17 Dec - 10 Jan	TAP
29 Dec - 05 Jan	United
21 Dec - 05 Jan	Lufthansa
21 Dec - 04 Jan	Scandinavian Airlines
21 Dec - 04 Jan	LOT	direct

Also check the deals for one-way flights from Newark to Warsaw in December.

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 Newark to Warsaw in December from $360

Return flights