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

Return flights

08 Apr - 15 Apr	British Airways
01 Apr - 30 Apr	Air France
01 Apr - 25 Apr	British Airways
14 Apr - 09 May	United
29 Apr - 09 May	United
23 Apr - 26 May	Delta
22 Apr - 25 May	Delta
16 Apr - 03 May	United
01 Apr - 30 Apr	LOT	direct
08 Apr - 15 Apr	LOT	direct
01 Apr - 25 Apr	LOT	direct
13 Apr - 20 Apr	LOT	direct
03 Apr - 10 Apr	LOT
23 Apr - 30 Apr	LOT

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 409€

Return flights