AirHint found the following cheapest return flights from Warsaw (WAW) to Chicago (ORD) in May 2026 (see full year).

Return flights

01 May - 07 May	Lufthansa
06 May - 10 May	Lufthansa
08 May - 14 May	Lufthansa
26 May - 06 Jun	Delta
26 May - 09 Jun	KLM
19 May - 01 Jun	Finnair
16 May - 23 May	SWISS
01 May - 02 Jun	Lufthansa
25 May - 08 Jun	Finnair
01 May - 30 May	Lufthansa
01 May - 07 May	LOT	direct
08 May - 14 May	LOT	direct
01 May - 15 May	LOT	direct
26 May - 09 Jun	LOT	direct
19 May - 01 Jun	LOT	direct
26 May - 06 Jun	LOT	direct
01 May - 30 May	LOT	direct

Also check the deals for one-way flights from Warsaw to Chicago in May.

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 May from $576

Return flights