Cheapest one-way flights from Chicago to Houston in September from $40

AirHint found the following cheapest one-way flights from Chicago (ORD) to Houston (IAH) in September 2025 (see full year).

One-Way flights

20 Sep Spirit Airlines direct
23 Sep Spirit Airlines direct
24 Sep Spirit Airlines direct
27 Sep Spirit Airlines direct
30 Sep Spirit Airlines direct
25 Sep Frontier Airlines direct
18 Sep Frontier Airlines direct
05 Sep Frontier Airlines direct
26 Sep Spirit Airlines direct
19 Sep Spirit Airlines direct

Also check the deals for return 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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