Cheapest return flights from Chicago to Warsaw in September from 507€

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 - 04 Oct British Airways
04 Sep - 18 Sep British Airways
09 Sep - 23 Sep British Airways
17 Sep - 24 Sep United
27 Sep - 04 Oct United
17 Sep - 24 Sep LOT direct
09 Sep - 23 Sep LOT direct
07 Sep - 14 Sep LOT direct
04 Sep - 18 Sep LOT direct
07 Sep - 04 Oct LOT direct
27 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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