Cheapest return flights from Chicago to Warsaw in September from 375€

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

Return flights

04 Sep - 11 Sep Scandinavian Airlines
08 Sep - 25 Sep Scandinavian Airlines
14 Sep - 27 Sep Scandinavian Airlines
15 Sep - 27 Sep Scandinavian Airlines
25 Sep - 06 Oct Scandinavian Airlines
02 Sep - 05 Sep Scandinavian Airlines
01 Sep - 13 Sep Scandinavian Airlines
05 Sep - 13 Sep Scandinavian Airlines
02 Sep - 06 Sep Scandinavian Airlines
09 Sep - 26 Sep Scandinavian Airlines
27 Sep - 12 Oct Scandinavian Airlines
14 Sep - 26 Sep Scandinavian Airlines
30 Sep - 07 Oct United
24 Sep - 01 Oct LOT direct
30 Sep - 07 Oct LOT direct
12 Sep - 31 Oct Austrian Airlines
27 Sep - 04 Oct United
25 Sep - 06 Oct LOT direct
12 Sep - 31 Oct LOT direct
27 Sep - 04 Oct LOT direct

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

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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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