Cheapest return flights from Denver to Houston in December from $78

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

Return flights

11 Dec - 16 Dec Frontier Airlines direct
16 Dec - 18 Dec Frontier Airlines direct
13 Dec - 16 Dec Frontier Airlines direct
10 Dec - 11 Dec Frontier Airlines direct
12 Dec - 14 Dec Frontier Airlines
11 Dec - 15 Dec Frontier Airlines
16 Dec - 19 Dec Frontier Airlines direct
24 Dec - 31 Dec Frontier Airlines
02 Dec - 03 Dec Frontier Airlines direct
03 Dec - 07 Dec Frontier Airlines direct
30 Dec - 04 Jan Frontier Airlines direct
29 Dec - 02 Jan Frontier Airlines direct
24 Dec - 01 Jan Frontier Airlines direct
22 Dec - 02 Jan Frontier Airlines direct
29 Dec - 04 Jan Frontier Airlines direct
27 Dec - 02 Jan Frontier Airlines direct

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

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