Cheap flights from Denver to Southwest Houston

View AU$137 flight on Thu, 28 Aug. 2025Opens in a new window

Popular airlines from Denver to Southwest Houston

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Denver (DEN) to Southwest Houston (HOU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 4 Sep. - Thu, 11 Sep.
DEN
Denver
IAH
Houston
AU$274 Return, found 3 days ago
AU$274
Return
found 3 days ago
Select American Airlines flight, departing Thu, 4 Sep. from Denver to Houston, returning Thu, 11 Sep., priced at AU$274 found 3 days ago
American Airlines
Fri, 17 Oct. - Thu, 23 Oct.
DEN
Denver
IAH
Houston
AU$302 Return, found 1 day ago
AU$302
Return
found 1 day ago
Select American Airlines flight, departing Fri, 17 Oct. from Denver to Houston, returning Thu, 23 Oct., priced at AU$302 found 1 day ago
American Airlines
Tue, 2 Sep. - Mon, 8 Sep.
DEN
Denver
HOU
Houston
AU$319 Return, found 2 days ago
AU$319
Return
found 2 days ago
Select American Airlines flight, departing Tue, 2 Sep. from Denver to Houston, returning Mon, 8 Sep., priced at AU$319 found 2 days ago
Delta
Sat, 16 Aug. - Mon, 18 Aug.
DEN
Denver
IAH
Houston
AU$335 Return, found 4 days ago
AU$335
Return
found 4 days ago
Select Delta flight, departing Sat, 16 Aug. from Denver to Houston, returning Mon, 18 Aug., priced at AU$335 found 4 days ago
United
Thu, 4 Sep. - Thu, 11 Sep.
DEN
Denver
IAH
Houston
AU$351 Return, found 3 days ago
AU$351
Return
found 3 days ago
Select United flight, departing Thu, 4 Sep. from Denver to Houston, returning Thu, 11 Sep., priced at AU$351 found 3 days ago
Alaska Airlines
Thu, 4 Sep. - Thu, 11 Sep.
DEN
Denver
IAH
Houston
AU$634 Return, found 3 days ago
AU$634
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 4 Sep. from Denver to Houston, returning Thu, 11 Sep., priced at AU$634 found 3 days ago

Find the cheapest month to fly from Denver (DEN) to Houston (IAH)

August is typically the cheapest month to fly

From AU$74 - AU$224 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.