Cheap flights from Portland to Southwest Houston

View AU$152 flight on Tue, 14 Oct. 2025Opens in a new window

Popular airlines from Portland to Southwest Houston

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Portland (PDX) 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.

Alaska Airlines
Wed, 13 Aug. - Sun, 17 Aug.
PDX
Portland
IAH
Houston
AU$481 Return, found 1 day ago
AU$481
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 13 Aug. from Portland to Houston, returning Sun, 17 Aug., priced at AU$481 found 1 day ago
Delta
Wed, 13 Aug. - Sun, 17 Aug.
PDX
Portland
IAH
Houston
AU$482 Return, found 1 day ago
AU$482
Return
found 1 day ago
Select Delta flight, departing Wed, 13 Aug. from Portland to Houston, returning Sun, 17 Aug., priced at AU$482 found 1 day ago
Alaska Airlines
Wed, 13 Aug. - Sun, 17 Aug.
PDX
Portland
IAH
Houston
AU$498 Return, found 1 day ago
AU$498
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 13 Aug. from Portland to Houston, returning Sun, 17 Aug., priced at AU$498 found 1 day ago
Alaska Airlines
Wed, 13 Aug. - Sun, 17 Aug.
PDX
Portland
IAH
Houston
AU$512 Return, found 1 day ago
AU$512
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 13 Aug. from Portland to Houston, returning Sun, 17 Aug., priced at AU$512 found 1 day ago
American Airlines
Wed, 13 Aug. - Sat, 16 Aug.
PDX
Portland
IAH
Houston
AU$550 Return, found 1 day ago
AU$550
Return
found 1 day ago
Select American Airlines flight, departing Wed, 13 Aug. from Portland to Houston, returning Sat, 16 Aug., priced at AU$550 found 1 day ago
United
Wed, 13 Aug. - Sun, 17 Aug.
PDX
Portland
IAH
Houston
AU$574 Return, found 1 day ago
AU$574
Return
found 1 day ago
Select United flight, departing Wed, 13 Aug. from Portland to Houston, returning Sun, 17 Aug., priced at AU$574 found 1 day ago

Find the cheapest month to fly from Portland (PDX) to Houston (IAH)

September is typically the cheapest month to fly

From AU$155 - AU$299 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.