AirHint found the following cheapest return flights from Warsaw (WAW) to Chicago (ORD) in September 2026 (see full year).
Return flights
| 01 Sep - 08 Sep | Lufthansa | ||
| 01 Sep - 15 Sep | Lufthansa | ||
| 02 Sep - 16 Sep | United | ||
| 01 Sep - 15 Sep | LOT | direct | |
| 01 Sep - 08 Sep | LOT | direct | |
| 02 Sep - 16 Sep | LOT | direct |
Also check the deals for one-way flights from Warsaw to Chicago in September.
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