฿1,945 Cheap Flights from Portland (PDX) to Seattle (SEA)

View ฿1,945 flight on Thu, 8 Jan 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 and start at ฿1,945 for one-way flights and ฿3,875 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿3,875 Return, found 4 days ago
฿3,875
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿3,875 found 4 days ago
Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿4,815 Return, found 4 days ago
฿4,815
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿4,815 found 4 days ago
Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿5,755 Return, found 4 days ago
฿5,755
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿5,755 found 4 days ago
Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿6,430 Return, found 4 days ago
฿6,430
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿6,430 found 4 days ago
Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿7,370 Return, found 4 days ago
฿7,370
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿7,370 found 4 days ago
Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿8,180 Return, found 4 days ago
฿8,180
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿8,180 found 4 days ago
Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿8,990 Return, found 4 days ago
฿8,990
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿8,990 found 4 days ago
Delta
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿9,115 Return, found 4 days ago
฿9,115
Return
found 4 days ago
Select Delta flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿9,115 found 4 days ago
United
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿9,155 Return, found 4 days ago
฿9,155
Return
found 4 days ago
Select United flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿9,155 found 4 days ago
American Airlines
Thu, 15 Jan - Thu, 26 Feb
PDX
Portland
SEA
Seattle
฿9,640 Return, found 4 days ago
฿9,640
Return
found 4 days ago
Select American Airlines flight, departing Thu, 15 Jan from Portland to Seattle, returning Thu, 26 Feb, priced at ฿9,640 found 4 days ago

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

January is typically the cheapest month to fly

From ฿2,440 - ฿6,293 per traveller.
Flight from Portland to Seattle route information
Origin airport
Portland Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
฿3,875
Distance
206 km
Average flight time
1 hour 4 mins

Perfect flights from Portland to Seattle

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Portland to Seattle. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Portland Intl. to Seattle - Tacoma Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿1,945 and roundtrip prices from ฿3,875. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Seattle - Tacoma Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Seattle.

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 ฿3,875. 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.

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