Cheapest one-way flights from Houston to Denver in December from $33

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

One-Way flights

16 Dec Frontier Airlines direct
06 Dec Frontier Airlines direct
03 Dec Frontier Airlines direct
15 Dec Frontier Airlines
15 Dec Frontier Airlines direct
13 Dec Frontier Airlines direct
05 Dec Frontier Airlines direct
08 Dec Frontier Airlines direct
29 Dec Frontier Airlines
30 Dec Frontier Airlines

Also check the deals for return flights from Houston to Denver 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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