Cheap flights from Perth to Northwest Washington

View AU$998 flight on Thu, 26 Mar. 2026Opens in a new window

Popular airlines from Perth 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 Perth (PER) 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.

Japan Airlines
Thu, 21 Aug. - Thu, 28 Aug.
PER
Perth
SEA
Seattle
AU$1,544 Return, found 1 day ago
AU$1,544
Return
found 1 day ago
Select Japan Airlines flight, departing Thu, 21 Aug. from Perth to Seattle, returning Thu, 28 Aug., priced at AU$1,544 found 1 day ago
Japan Airlines
Tue, 2 Sep. - Wed, 17 Sep.
PER
Perth
SEA
Seattle
AU$1,562 Return, found 2 days ago
AU$1,562
Return
found 2 days ago
Select Japan Airlines flight, departing Tue, 2 Sep. from Perth to Seattle, returning Wed, 17 Sep., priced at AU$1,562 found 2 days ago
Air New Zealand
Tue, 21 Oct. - Tue, 4 Nov.
PER
Perth
SEA
Seattle
AU$1,802 Return, found 7 hours ago
AU$1,802
Return
found 7 hours ago
Select Air New Zealand flight, departing Tue, 21 Oct. from Perth to Seattle, returning Tue, 4 Nov., priced at AU$1,802 found 7 hours ago
Air Canada
Tue, 21 Oct. - Tue, 4 Nov.
PER
Perth
SEA
Seattle
AU$1,808 Return, found 7 hours ago
AU$1,808
Return
found 7 hours ago
Select Air Canada flight, departing Tue, 21 Oct. from Perth to Seattle, returning Tue, 4 Nov., priced at AU$1,808 found 7 hours ago
Singapore Airlines
Thu, 20 Nov. - Sat, 6 Dec.
PER
Perth
SEA
Seattle
AU$1,919 Return, found 1 day ago
AU$1,919
Return
found 1 day ago
Select Singapore Airlines flight, departing Thu, 20 Nov. from Perth to Seattle, returning Sat, 6 Dec., priced at AU$1,919 found 1 day ago
United
Tue, 4 Nov. - Sun, 16 Nov.
PER
Perth
SEA
Seattle
AU$1,937 Return, found 2 days ago
AU$1,937
Return
found 2 days ago
Select United flight, departing Tue, 4 Nov. from Perth to Seattle, returning Sun, 16 Nov., priced at AU$1,937 found 2 days ago
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