Cheapest one-way flights from Denver to Houston in December from $42

AirHint found the following cheapest one-way flights from Denver (DEN) to Houston (IAH) in December 2025 (see full year).

One-Way flights

24 Dec Frontier Airlines direct
15 Dec Frontier Airlines direct
25 Dec Frontier Airlines direct
18 Dec Frontier Airlines direct
13 Dec Frontier Airlines direct
29 Dec Frontier Airlines direct
05 Dec Frontier Airlines direct
02 Dec Frontier Airlines direct
08 Dec Frontier Airlines direct
20 Dec Frontier Airlines direct

Also check the deals for return flights from Denver to Houston in December.

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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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