Cheapest return flights from Chicago to Houston in September from $120

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

Return flights

18 Sep - 27 Sep Frontier Airlines
25 Sep - 30 Sep Frontier Airlines
18 Sep - 22 Sep Frontier Airlines
25 Sep - 29 Sep Frontier Airlines
29 Sep - 02 Oct Frontier Airlines
22 Sep - 25 Sep Frontier Airlines
25 Sep - 28 Sep Frontier Airlines
21 Sep - 25 Sep Frontier Airlines
18 Sep - 21 Sep Frontier Airlines
15 Sep - 18 Sep Frontier Airlines
12 Sep - 18 Sep Frontier Airlines
26 Sep - 05 Oct Frontier Airlines

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

Skyscanner

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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