Cheapest return flights from Denver to Houston in October from $102

AirHint found the following cheapest return flights from Denver (DEN) to Houston (IAH) in October 2025 (see full year).

Return flights

23 Oct - 28 Oct Frontier Airlines direct
08 Oct - 11 Oct Frontier Airlines direct
29 Oct - 02 Nov Frontier Airlines direct
15 Oct - 22 Oct Frontier Airlines direct
14 Oct - 01 Nov Frontier Airlines direct
20 Oct - 24 Oct Frontier Airlines direct
09 Oct - 13 Oct Frontier Airlines direct
10 Oct - 12 Oct Frontier Airlines direct
05 Oct - 08 Oct Frontier Airlines direct
04 Oct - 05 Oct Frontier Airlines
23 Oct - 01 Nov Frontier Airlines direct
04 Oct - 05 Oct Frontier Airlines direct
20 Oct - 27 Oct Frontier Airlines
23 Oct - 02 Nov Frontier Airlines
23 Oct - 02 Nov Frontier Airlines direct

Also check the deals for one-way flights from Denver to Houston in October.

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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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