Cheap flights from Seattle to Willamette Valley

View AU$106 flight on Sat, 1 Nov. 2025Opens in a new window

Popular airlines from Seattle to Willamette Valley

  • 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 Seattle (SEA) to Willamette Valley (RDM)

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
Tue, 12 Aug. - Sat, 16 Aug.
SEA
Seattle
PDX
Portland
AU$149 Return, found 6 days ago
AU$149
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 12 Aug. from Seattle to Portland, returning Sat, 16 Aug., priced at AU$149 found 6 days ago
Alaska Airlines
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
PDX
Portland
AU$150 Return, found 4 days ago
AU$150
Return
found 4 days ago
Select Alaska Airlines flight, departing Tue, 2 Sep. from Seattle to Portland, returning Tue, 9 Sep., priced at AU$150 found 4 days ago
Delta
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
PDX
Portland
AU$151 Return, found 4 days ago
AU$151
Return
found 4 days ago
Select Delta flight, departing Tue, 2 Sep. from Seattle to Portland, returning Tue, 9 Sep., priced at AU$151 found 4 days ago
Delta
Tue, 12 Aug. - Sat, 16 Aug.
SEA
Seattle
PDX
Portland
AU$180 Return, found 6 days ago
AU$180
Return
found 6 days ago
Select Delta flight, departing Tue, 12 Aug. from Seattle to Portland, returning Sat, 16 Aug., priced at AU$180 found 6 days ago
United
Mon, 18 Aug. - Mon, 25 Aug.
SEA
Seattle
MFR
Medford
AU$466 Return, found 4 days ago
AU$466
Return
found 4 days ago
Select United flight, departing Mon, 18 Aug. from Seattle to Medford, returning Mon, 25 Aug., priced at AU$466 found 4 days ago
American Airlines
Sun, 7 Sep. - Wed, 24 Sep.
SEA
Seattle
RDM
Redmond
AU$2,611 Return, found 3 days ago
AU$2,611
Return
found 3 days ago
Select American Airlines flight, departing Sun, 7 Sep. from Seattle to Redmond, returning Wed, 24 Sep., priced at AU$2,611 found 3 days ago

Find the cheapest month to fly from Seattle (SEA) to Portland (PDX)

January is typically the cheapest month to fly

From AU$117 - AU$333 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.