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

Return flights

10 Dec - 24 Dec	Lufthansa
08 Dec - 22 Jan	Lufthansa
29 Dec - 11 Jan	Austrian Airlines
28 Dec - 11 Jan	Austrian Airlines
03 Dec - 07 Dec	SWISS
12 Dec - 14 Dec	Austrian Airlines
03 Dec - 08 Dec	SWISS
04 Dec - 11 Dec	LOT	direct
10 Dec - 24 Dec	LOT	direct
15 Dec - 10 Jan	Austrian Airlines
14 Dec - 23 Dec	Austrian Airlines
03 Dec - 07 Dec	LOT	direct
28 Dec - 10 Jan	British Airways
06 Dec - 07 Dec	Scandinavian Airlines
25 Dec - 09 Jan	SWISS
07 Dec - 21 Dec	United
16 Dec - 10 Jan	TAP
12 Dec - 06 Jan	Austrian Airlines
26 Dec - 06 Jan	Scandinavian Airlines
30 Dec - 04 Jan	Lufthansa

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 313€

Return flights