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

Return flights

01 May - 17 May	Lufthansa
01 May - 10 May	Lufthansa
12 May - 19 May	United
01 May - 13 May	United
12 May - 03 Jun	Brussels Airlines
17 May - 31 May	KLM
01 May - 30 May	Lufthansa
20 May - 03 Jun	Brussels Airlines
04 May - 09 May	United
12 May - 19 May	LOT	direct
12 May - 03 Jun	LOT	direct
20 May - 03 Jun	LOT	direct
01 May - 17 May	LOT	direct
01 May - 10 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 469€

Return flights