Cheapest return flights from Chicago to Warsaw in September from $400

Best time to book flights for Chicago (ORD) to Warsaw (WAW) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to Warsaw (WAW) in September 2025 (see full year).

Return flights

07 Sep - 02 Oct Scandinavian Airlines
07 Sep - 25 Sep Scandinavian Airlines
04 Sep - 19 Sep Scandinavian Airlines
03 Sep - 05 Oct Scandinavian Airlines
14 Sep - 26 Sep Scandinavian Airlines
10 Sep - 24 Sep Scandinavian Airlines
03 Sep - 10 Sep United
07 Sep - 25 Sep LOT direct
04 Sep - 17 Sep TAP
07 Sep - 02 Oct LOT direct
23 Sep - 30 Sep United
23 Sep - 30 Sep LOT direct
03 Sep - 05 Oct LOT direct
18 Sep - 25 Sep LOT direct

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

Skyscanner

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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