AirHint found the following cheapest return flights from Chicago (MDW) to Amman (AMM) in September 2025 (see full year).

Return flights

22 Sep - 04 Oct	Frontier Airlines
15 Sep - 11 Oct	Frontier Airlines
28 Sep - 12 Oct	Frontier Airlines
03 Sep - 29 Sep	Frontier Airlines
03 Sep - 24 Sep	Frontier Airlines
15 Sep - 09 Oct	Frontier Airlines
13 Sep - 11 Oct	Frontier Airlines
08 Sep - 02 Oct	Frontier Airlines
06 Sep - 13 Sep	Frontier Airlines

Also check the deals for one-way flights from Chicago to Amman 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 Amman in September from $902

Return flights