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

Return flights

03 Dec - 09 Dec	Lufthansa
04 Dec - 09 Dec	Lufthansa
02 Dec - 09 Dec	SWISS
03 Dec - 09 Dec	LOT	direct
04 Dec - 09 Dec	LOT	direct
03 Dec - 11 Dec	LOT	direct
04 Dec - 07 Dec	TAP
09 Dec - 15 Dec	Brussels Airlines
05 Dec - 09 Dec	LOT	direct
06 Dec - 09 Dec	Lufthansa
10 Dec - 21 Jan	Lufthansa
24 Dec - 01 Jan	Lufthansa
25 Dec - 30 Jan	Lufthansa
22 Dec - 04 Jan	SWISS
25 Dec - 01 Jan	Lufthansa
16 Dec - 06 Jan	United
10 Dec - 24 Jan	Lufthansa
17 Dec - 09 Jan	Lufthansa
10 Dec - 22 Jan	United
15 Dec - 06 Jan	Lufthansa

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 413€

Return flights