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

Return flights

01 Dec - 08 Dec	Lufthansa
01 Dec - 07 Dec	Austrian Airlines
04 Dec - 11 Dec	LOT	direct
03 Dec - 10 Dec	LOT	direct
04 Dec - 09 Dec	LOT	direct
09 Dec - 16 Dec	Brussels Airlines
08 Dec - 22 Jan	KLM
03 Dec - 09 Dec	LOT	direct
03 Dec - 08 Dec	Lufthansa
09 Dec - 14 Dec	SWISS
09 Dec - 12 Dec	SWISS
31 Dec - 07 Jan	British Airways
10 Dec - 08 Jan	British Airways
30 Dec - 13 Jan	TAP
31 Dec - 18 Jan	Austrian Airlines
09 Dec - 18 Jan	Scandinavian Airlines
09 Dec - 07 Jan	Scandinavian Airlines
10 Dec - 07 Jan	Scandinavian Airlines
07 Dec - 18 Jan	Brussels Airlines
30 Dec - 10 Jan	TAP

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 $353

Return flights