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

Return flights

28 Sep - 13 Oct	Etihad Airways
19 Sep - 27 Sep	Etihad Airways
13 Sep - 28 Sep	Turkish Airlines
09 Sep - 16 Sep	Etihad Airways
05 Sep - 13 Sep	Etihad Airways
28 Sep - 13 Oct	American Airlines	direct
13 Sep - 28 Sep	American Airlines	direct
19 Sep - 27 Sep	Qatar Airways	direct
09 Sep - 16 Sep	Qatar Airways	direct
05 Sep - 13 Sep	Qatar Airways	direct

Also check the deals for one-way flights from Chicago to Doha 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 Chicago to Doha in September from $851

Return flights