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

Return flights

25 Dec - 31 Dec	LOT	direct
24 Dec - 12 Jan	Scandinavian Airlines
26 Dec - 31 Dec	LOT	direct
25 Dec - 12 Jan	United
25 Dec - 11 Jan	United
24 Dec - 15 Jan	United
25 Dec - 19 Jan	Lufthansa
25 Dec - 17 Jan	Lufthansa
25 Dec - 30 Dec	United
24 Dec - 30 Dec	United
24 Dec - 31 Dec	LOT	direct
24 Dec - 08 Jan	SWISS
23 Dec - 12 Jan	SWISS
25 Dec - 28 Dec	United
25 Dec - 17 Jan	LOT	direct
23 Dec - 13 Jan	SWISS
25 Dec - 29 Dec	Lufthansa
23 Dec - 30 Dec	SWISS
26 Dec - 29 Dec	LOT	direct
21 Dec - 28 Dec	SWISS

Also check the deals for one-way flights from Warsaw to Chicago 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 Warsaw to Chicago in December from 477€

Return flights