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

View AU$157 flight on Sat, 23 May 2026Opens in a new window

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

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Cheap Flights from Portland (PDX) to Seattle (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.

Alaska Airlines
Sat, 23 May - Sat, 30 May
PDX
Portland
SEA
Seattle
AU$256 Return, found 3 days ago
AU$256
Return
found 3 days ago
Select Alaska Airlines flight, departing Sat, 23 May from Portland to Seattle, returning Sat, 30 May, priced at AU$256 found 3 days ago
Delta
Sat, 23 May - Sat, 30 May
PDX
Portland
SEA
Seattle
AU$256 Return, found 3 days ago
AU$256
Return
found 3 days ago
Select Delta flight, departing Sat, 23 May from Portland to Seattle, returning Sat, 30 May, priced at AU$256 found 3 days ago
Alaska Airlines
Sat, 23 May - Sat, 30 May
PDX
Portland
SEA
Seattle
AU$270 Return, found 3 days ago
AU$270
Return
found 3 days ago
Select Alaska Airlines flight, departing Sat, 23 May from Portland to Seattle, returning Sat, 30 May, priced at AU$270 found 3 days ago
Delta
Thu, 4 June - Sat, 6 June
PDX
Portland
SEA
Seattle
AU$280 Return, found 1 day ago
AU$280
Return
found 1 day ago
Select Delta flight, departing Thu, 4 June from Portland to Seattle, returning Sat, 6 June, priced at AU$280 found 1 day ago
Delta
Thu, 7 May - Thu, 14 May
PDX
Portland
SEA
Seattle
AU$285 Return, found 3 days ago
AU$285
Return
found 3 days ago
Select Delta flight, departing Thu, 7 May from Portland to Seattle, returning Thu, 14 May, priced at AU$285 found 3 days ago
Delta
Sat, 23 May - Sat, 30 May
PDX
Portland
SEA
Seattle
AU$292 Return, found 3 days ago
AU$292
Return
found 3 days ago
Select Delta flight, departing Sat, 23 May from Portland to Seattle, returning Sat, 30 May, priced at AU$292 found 3 days ago
Alaska Airlines
Thu, 7 May - Thu, 14 May
PDX
Portland
SEA
Seattle
AU$299 Return, found 3 days ago
AU$299
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 7 May from Portland to Seattle, returning Thu, 14 May, priced at AU$299 found 3 days ago
Alaska Airlines
Sat, 23 May - Sat, 30 May
PDX
Portland
SEA
Seattle
AU$311 Return, found 3 days ago
AU$311
Return
found 3 days ago
Select Alaska Airlines flight, departing Sat, 23 May from Portland to Seattle, returning Sat, 30 May, priced at AU$311 found 3 days ago
United
Sun, 7 June - Mon, 8 June
PDX
Portland
SEA
Seattle
AU$866 Return, found 1 day ago
AU$866
Return
found 1 day ago
Select United flight, departing Sun, 7 June from Portland to Seattle, returning Mon, 8 June, priced at AU$866 found 1 day ago
American Airlines
Sun, 7 June - Mon, 8 June
PDX
Portland
SEA
Seattle
AU$1,143 Return, found 1 day ago
AU$1,143
Return
found 1 day ago
Select American Airlines flight, departing Sun, 7 June from Portland to Seattle, returning Mon, 8 June, priced at AU$1,143 found 1 day ago

Frequently asked questions

How much is a flight from PDX Airport to Seattle - Tacoma Intl. Airport (SEA)?
Round-trip tickets from Portland Airport to Sea-Tac Airport start from AU$256. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Portland Airport to Sea-Tac Airport?
Most flights can be conveniently cancelled online, but whether you are charged a fee varies between airlines. If you do need to cancel your holiday, follow the instructions in the Customer Service Portal.
How do I find cheap flights from PDX Airport to Sea-Tac Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for PDX Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Portland Airport to SEA?
It takes around 1 hour and 1 minute to jet from Portland Intl. Airport (PDX) to Seattle - Tacoma Intl. Airport (SEA) — just enough time for a quick snooze. You'll be landing in SeaTac by the time you open your eyes.
How far is the flight from Portland Intl. Airport (PDX) to Seattle - Tacoma Intl. Airport (SEA)?
The distance from Portland Intl. Airport (PDX) (PDX) to Sea-Tac Airport (SEA) is only 210 kilometres. You'll be disembarking the plane and collecting your suitcase from the carousel in no time.
Which airlines fly direct from PDX to Sea-Tac Airport?
With 495 flights every month from PDX to Seattle - Tacoma Intl. Airport (SEA), Alaska Airlines (AS) is a top choice. If you'd like more options, check out the fares from Delta Air Lines (DL). This airline offers 212 flights a month between these airports.
Are Portland Intl. Airport (PDX) to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from PDX Airport to SEA last minute could be your ticket to a great deal. However, it could end up costing a great deal more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

Travel information

0
Origin airport
Portland Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$255
Distance
206 km

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