Cheapest return flights from Houston to Denver in March from $161

AirHint found the following cheapest return flights from Houston (IAH) to Denver (DEN) in March 2026 (see full year).

Return flights

07 Mar - 11 Mar Frontier Airlines direct
12 Mar - 16 Mar Frontier Airlines direct
09 Mar - 13 Mar Frontier Airlines direct
07 Mar - 13 Mar Frontier Airlines direct
19 Mar - 28 Mar Frontier Airlines direct
18 Mar - 22 Mar Frontier Airlines direct
15 Mar - 21 Mar Frontier Airlines direct
19 Mar - 22 Mar Frontier Airlines direct
13 Mar - 15 Mar Frontier Airlines direct

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

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