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

Return flights

03 May - 12 May	SWISS
06 May - 12 May	Finnair
06 May - 19 May	Finnair
06 May - 18 May	British Airways
01 May - 12 May	Finnair
19 May - 09 Jun	Finnair
06 May - 16 May	Finnair
20 May - 13 Jun	Finnair
01 May - 16 May	Finnair
01 May - 12 May	LOT	direct
17 May - 31 May	SWISS
03 May - 12 May	LOT	direct
19 May - 09 Jun	LOT	direct
29 May - 26 Jun	Scandinavian Airlines
20 May - 13 Jun	LOT	direct
30 May - 27 Jun	Scandinavian Airlines
22 May - 02 Jun	LOT	direct
29 May - 26 Jun	LOT	direct
30 May - 27 Jun	LOT	direct

Also check the deals for one-way flights from Chicago to Warsaw 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 Chicago to Warsaw in May from 369€

Return flights