Cheapest return flights from Chicago to Warsaw in September from 397€

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

Return flights

23 Sep - 21 Oct Scandinavian Airlines
09 Sep - 17 Sep Lufthansa
03 Sep - 27 Sep Scandinavian Airlines
08 Sep - 29 Sep British Airways
09 Sep - 16 Sep United
10 Sep - 25 Sep Lufthansa
08 Sep - 15 Sep SWISS
03 Sep - 10 Sep United
05 Sep - 14 Sep Scandinavian Airlines
22 Sep - 30 Sep British Airways
05 Sep - 26 Sep Scandinavian Airlines
30 Sep - 07 Oct United
25 Sep - 02 Oct Turkish Airlines
23 Sep - 04 Oct Lufthansa
24 Sep - 01 Oct LOT direct
30 Sep - 07 Oct LOT direct
25 Sep - 02 Oct LOT direct
27 Sep - 04 Oct LOT direct
23 Sep - 04 Oct 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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