Flights to Northwest Washington from Portland - ￥11,360

View ￥11,360 flight on Wed, Oct 1, 2025Opens in a new window

Popular airlines from Portland to Northwest Washington

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    All Nippon Airways

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    Japan Airlines

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    Jetstar Japan

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    Solaseed Air

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Cheap Flights from Portland to Northwest Washington (PDX-SEA)

Prices were available within the past 7 days and start at ￥11,360 for one-way flights and ￥17,210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Aug 12 - Tue, Aug 19
PDX
Portland
SEA
Seattle
￥17,210 Roundtrip, found 1 day ago
￥17,210
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Aug 12 from Portland to Seattle, returning Tue, Aug 19, priced at ￥17,210 found 1 day ago
Delta
Sat, Sep 13 - Sun, Sep 14
PDX
Portland
SEA
Seattle
￥19,820 Roundtrip, found 5 days ago
￥19,820
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep 13 from Portland to Seattle, returning Sun, Sep 14, priced at ￥19,820 found 5 days ago
Hawaiian Airlines
Tue, Aug 12 - Sun, Aug 17
PDX
Portland
SEA
Seattle
￥20,110 Roundtrip, found 1 day ago
￥20,110
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Aug 12 from Portland to Seattle, returning Sun, Aug 17, priced at ￥20,110 found 1 day ago
Hawaiian Airlines
Thu, Aug 14 - Mon, Aug 18
PDX
Portland
SEA
Seattle
￥22,720 Roundtrip, found 5 days ago
￥22,720
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Thu, Aug 14 from Portland to Seattle, returning Mon, Aug 18, priced at ￥22,720 found 5 days ago
American Airlines
Thu, Aug 7 - Thu, Aug 14
PDX
Portland
SEA
Seattle
￥61,780 Roundtrip, found 14 hours ago
￥61,780
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Thu, Aug 7 from Portland to Seattle, returning Thu, Aug 14, priced at ￥61,780 found 14 hours ago
United
Wed, Aug 13 - Thu, Aug 14
PDX
Portland
SEA
Seattle
￥68,320 Roundtrip, found 5 days ago
￥68,320
Roundtrip
found 5 days ago
Select United flight, departing Wed, Aug 13 from Portland to Seattle, returning Thu, Aug 14, priced at ￥68,320 found 5 days ago

Find the cheapest month to fly from Portland (PDX) to Bellingham (BLI)

January is typically the cheapest month to fly

From ￥28,909 - ￥79,805 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.