An Alaska Airlines plane taking off with a snow-capped mountain in the background.

Flights from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA)
Flights to Seattle
Washington
United States of America
Flights
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Popular airlines from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA)

Alaska Airlines
Delta
Southwest Airlines
United
JetBlue Airways
American Airlines

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Cheap Flights from Portland to Seattle (PDX-SEA)

Prices were available within the past 7 days and start at NT$4,118 for one-way flights and NT$5,690 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Tue, Oct 6 - Sat, Oct 10

PDX

Portland

SEA

Seattle

NT$5,690

Roundtrip

Found 1 day ago

Select Delta flight, departing Tue, Oct 6 from Portland to Seattle, returning Sat, Oct 10, priced at NT$5,690 Found 1 day ago

Fri, Sep 4 - Sat, Sep 12

PDX

Portland

SEA

Seattle

NT$6,011

Roundtrip

Found 1 day ago

Select Delta flight, departing Fri, Sep 4 from Portland to Seattle, returning Sat, Sep 12, priced at NT$6,011 Found 1 day ago

Sat, Sep 5 - Fri, Sep 11

PDX

Portland

SEA

Seattle

NT$6,013

Roundtrip

Found 1 day ago

Select Delta flight, departing Sat, Sep 5 from Portland to Seattle, returning Fri, Sep 11, priced at NT$6,013 Found 1 day ago

Mon, Sep 7 - Mon, Sep 14

PDX

Portland

SEA

Seattle

NT$6,334

Roundtrip

Found 1 day ago

Select Delta flight, departing Mon, Sep 7 from Portland to Seattle, returning Mon, Sep 14, priced at NT$6,334 Found 1 day ago

Tue, Oct 6 - Sat, Oct 10

PDX

Portland

SEA

Seattle

NT$6,655

Roundtrip

Found 1 day ago

Select Delta flight, departing Tue, Oct 6 from Portland to Seattle, returning Sat, Oct 10, priced at NT$6,655 Found 1 day ago

Tue, Oct 6 - Sat, Oct 10

PDX

Portland

SEA

Seattle

NT$7,621

Roundtrip

Found 1 day ago

Select Delta flight, departing Tue, Oct 6 from Portland to Seattle, returning Sat, Oct 10, priced at NT$7,621 Found 1 day ago

Tue, Sep 8 - Fri, Sep 11

PDX

Portland

PAE

Seattle

NT$7,942

Roundtrip

Found 1 day ago

Select Alaska Airlines flight, departing Tue, Sep 8 from Portland to Seattle, returning Fri, Sep 11, priced at NT$7,942 Found 1 day ago

Sun, Sep 6 - Fri, Sep 11

PDX

Portland

PAE

Seattle

NT$8,264

Roundtrip

Found 1 day ago

Select Alaska Airlines flight, departing Sun, Sep 6 from Portland to Seattle, returning Fri, Sep 11, priced at NT$8,264 Found 1 day ago

Tue, Oct 6 - Sat, Oct 10

PDX

Portland

SEA

Seattle

NT$8,585

Roundtrip

Found 1 day ago

Select Delta flight, departing Tue, Oct 6 from Portland to Seattle, returning Sat, Oct 10, priced at NT$8,585 Found 1 day ago

Tue, Oct 6 - Sat, Oct 10

PDX

Portland

SEA

Seattle

NT$13,591

Roundtrip

Found 1 day ago

Select United flight, departing Tue, Oct 6 from Portland to Seattle, returning Sat, Oct 10, priced at NT$13,591 Found 1 day ago

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

March is typically the cheapest month to fly

From NT$3,156 - NT$8,666 per traveler.

Travel information

Origin airport	Portland International Airport
Destination airport	Seattle-Tacoma International Airport
Distance	207 km away
Airlines serving	Alaska Airlines, Delta, Southwest Airlines, United, JetBlue Airways, American Airlines
Popular airline	Alaska Airlines
Roundtrip price	NT$5,690
Average flight time	1 hour 17 mins

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NT$4,118 Cheap Flights from Portland (PDX) to Seattle (SEA)

Popular airlines from Portland International Airport (PDX) to Seattle-Tacoma International Airport (SEA)

Be in the know

Book smarter

Earn twice

Cheap Flights from Portland to Seattle (PDX-SEA)

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

March is typically the cheapest month to flyMarch is typically the cheapest month to fly

Travel information

Explore a world of travel with Expedia

March is typically the cheapest month to fly