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 Dec. - Fri, 16 Jan.
IAH
Houston
SEA
Seattle
AU$497 Return, found 4 days ago
AU$497
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 6 Dec. from Houston to Seattle, returning Fri, 16 Jan., priced at AU$497 found 4 days ago
Alaska Airlines
Sat, 6 Dec. - Fri, 16 Jan.
IAH
Houston
SEA
Seattle
AU$551 Return, found 4 days ago
AU$551
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 6 Dec. from Houston to Seattle, returning Fri, 16 Jan., priced at AU$551 found 4 days ago
Alaska Airlines
Sat, 6 Dec. - Fri, 16 Jan.
IAH
Houston
SEA
Seattle
AU$552 Return, found 4 days ago
AU$552
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 6 Dec. from Houston to Seattle, returning Fri, 16 Jan., priced at AU$552 found 4 days ago
American Airlines
Sat, 6 Dec. - Fri, 16 Jan.
IAH
Houston
SEA
Seattle
AU$559 Return, found 4 days ago
AU$559
Return
found 4 days ago
Select American Airlines flight, departing Sat, 6 Dec. from Houston to Seattle, returning Fri, 16 Jan., priced at AU$559 found 4 days ago
Delta
Sat, 6 Dec. - Fri, 16 Jan.
IAH
Houston
SEA
Seattle
AU$591 Return, found 4 days ago
AU$591
Return
found 4 days ago
Select Delta flight, departing Sat, 6 Dec. from Houston to Seattle, returning Fri, 16 Jan., priced at AU$591 found 4 days ago
United
Sat, 6 Dec. - Fri, 16 Jan.
IAH
Houston
SEA
Seattle
AU$606 Return, found 4 days ago
AU$606
Return
found 4 days ago
Select United flight, departing Sat, 6 Dec. from Houston to Seattle, returning Fri, 16 Jan., priced at AU$606 found 4 days ago
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