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

Return flights

07 Apr - 13 Apr	Air Canada
29 Apr - 12 May	Air Canada
01 Apr - 25 Apr	Scandinavian Airlines
12 Apr - 02 May	Air Canada
08 Apr - 02 May	Air Canada
05 Apr - 25 Apr	Finnair
29 Apr - 10 May	Finnair
29 Apr - 12 May	LOT	direct
14 Apr - 21 Apr	LOT	direct
12 Apr - 02 May	LOT	direct
08 Apr - 02 May	LOT	direct
01 Apr - 25 Apr	LOT	direct
05 Apr - 25 Apr	LOT	direct
07 Apr - 13 Apr	LOT	direct
24 Apr - 01 May	LOT	direct
04 Apr - 11 Apr	LOT	direct

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

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 April from $428

Return flights