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

Return flights

08 Sep - 18 Sep	TAP
18 Sep - 26 Sep	Spirit Airlines
17 Sep - 24 Sep	Spirit Airlines
17 Sep - 01 Oct	Spirit Airlines
10 Sep - 17 Sep	Air Canada
24 Sep - 15 Oct	Spirit Airlines
18 Sep - 25 Sep	Spirit Airlines
13 Sep - 25 Sep	Spirit Airlines
10 Sep - 25 Sep	Spirit Airlines
01 Sep - 30 Sep	Turkish Airlines
09 Sep - 16 Sep	Turkish Airlines
16 Sep - 30 Sep	Turkish Airlines
23 Sep - 14 Oct	Turkish Airlines
09 Sep - 02 Oct	Turkish Airlines
11 Sep - 01 Oct	Turkish Airlines

Also check the deals for one-way flights from Chicago to Casablanca 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 Casablanca in September from $427

Return flights