Cheapest one-way flights from Houston to Denver in December from $64

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

One-Way flights

15 Dec Frontier Airlines direct
18 Dec Frontier Airlines direct
21 Dec United direct
29 Dec Frontier Airlines direct

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

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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