Cheap flights from Seattle to Astoria

View AU$104 flight on Wed, 17 Sep. 2025Opens in a new window

Popular airlines from Seattle to Astoria

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Cheap Flights from Seattle (SEA) to Astoria (PDX)

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, 1 Nov. - Wed, 5 Nov.
SEA
Seattle
PDX
Portland
AU$148 Return, found 19 hours ago
AU$148
Return
found 19 hours ago
Select Alaska Airlines flight, departing Sat, 1 Nov. from Seattle to Portland, returning Wed, 5 Nov., priced at AU$148 found 19 hours ago
Delta
Sat, 1 Nov. - Wed, 5 Nov.
SEA
Seattle
PDX
Portland
AU$148 Return, found 19 hours ago
AU$148
Return
found 19 hours ago
Select Delta flight, departing Sat, 1 Nov. from Seattle to Portland, returning Wed, 5 Nov., priced at AU$148 found 19 hours ago
Alaska Airlines
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
PDX
Portland
AU$150 Return, found 6 days ago
AU$150
Return
found 6 days ago
Select Alaska Airlines flight, departing Tue, 2 Sep. from Seattle to Portland, returning Tue, 9 Sep., priced at AU$150 found 6 days ago
Delta
Tue, 2 Sep. - Tue, 9 Sep.
SEA
Seattle
PDX
Portland
AU$151 Return, found 6 days ago
AU$151
Return
found 6 days ago
Select Delta flight, departing Tue, 2 Sep. from Seattle to Portland, returning Tue, 9 Sep., priced at AU$151 found 6 days ago
Alaska Airlines
Sat, 1 Nov. - Wed, 5 Nov.
SEA
Seattle
PDX
Portland
AU$163 Return, found 19 hours ago
AU$163
Return
found 19 hours ago
Select Alaska Airlines flight, departing Sat, 1 Nov. from Seattle to Portland, returning Wed, 5 Nov., priced at AU$163 found 19 hours ago
Alaska Airlines
Sat, 1 Nov. - Wed, 5 Nov.
SEA
Seattle
PDX
Portland
AU$178 Return, found 19 hours ago
AU$178
Return
found 19 hours ago
Select Alaska Airlines flight, departing Sat, 1 Nov. from Seattle to Portland, returning Wed, 5 Nov., priced at AU$178 found 19 hours 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.