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

Return flights

14 Sep - 21 Sep	Austrian Airlines
26 Sep - 09 Oct	British Airways
26 Sep - 12 Oct	British Airways
05 Sep - 16 Sep	Finnair
06 Sep - 03 Oct	Finnair
06 Sep - 02 Oct	Finnair
22 Sep - 05 Oct	LOT	direct
12 Sep - 16 Sep	British Airways
05 Sep - 23 Sep	British Airways
03 Sep - 09 Sep	LOT	direct
10 Sep - 30 Sep	LOT	direct
19 Sep - 26 Sep	LOT	direct
12 Sep - 19 Sep	LOT	direct
12 Sep - 26 Sep	LOT	direct
05 Sep - 19 Sep	LOT	direct
06 Sep - 01 Oct	Finnair
07 Sep - 03 Oct	Finnair
07 Sep - 04 Oct	Finnair
25 Sep - 03 Oct	Austrian Airlines
24 Sep - 02 Oct	LOT

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

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 Krakow to Chicago in September from 423€

Return flights