Cheap flights from Houston to Northwest Washington

View AU$167 flight on Sat, 23 Aug. 2025Opens in a new window

Popular airlines from Houston to Northwest Washington

  • 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 Houston (HOU) to Northwest Washington (SEA)

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
Sat, 6 Sep. - Sat, 13 Sep.
IAH
Houston
SEA
Seattle
AU$390 Return, found 18 hours ago
AU$390
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Houston to Seattle, returning Sat, 13 Sep., priced at AU$390 found 18 hours ago
Alaska Airlines
Sat, 6 Sep. - Sat, 13 Sep.
IAH
Houston
SEA
Seattle
AU$406 Return, found 18 hours ago
AU$406
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Houston to Seattle, returning Sat, 13 Sep., priced at AU$406 found 18 hours ago
American Airlines
Sat, 6 Sep. - Sat, 13 Sep.
IAH
Houston
SEA
Seattle
AU$420 Return, found 18 hours ago
AU$420
Return
found 18 hours ago
Select American Airlines flight, departing Sat, 6 Sep. from Houston to Seattle, returning Sat, 13 Sep., priced at AU$420 found 18 hours ago
Delta
Sat, 6 Sep. - Sat, 13 Sep.
IAH
Houston
SEA
Seattle
AU$420 Return, found 18 hours ago
AU$420
Return
found 18 hours ago
Select Delta flight, departing Sat, 6 Sep. from Houston to Seattle, returning Sat, 13 Sep., priced at AU$420 found 18 hours ago
Alaska Airlines
Sat, 6 Sep. - Sat, 13 Sep.
IAH
Houston
SEA
Seattle
AU$451 Return, found 18 hours ago
AU$451
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Houston to Seattle, returning Sat, 13 Sep., priced at AU$451 found 18 hours ago
United
Sat, 6 Sep. - Sat, 13 Sep.
IAH
Houston
SEA
Seattle
AU$459 Return, found 18 hours ago
AU$459
Return
found 18 hours ago
Select United flight, departing Sat, 6 Sep. from Houston to Seattle, returning Sat, 13 Sep., priced at AU$459 found 18 hours ago
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