Cheap flights from Portland to Northwest Houston

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

Popular airlines from Portland to Northwest Houston

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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

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.