S$89 Cheap Flights from Portland to Seattle

View S$89 flight on Sat, 16 Aug, 2025Opens 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 to Seattle (PDX-SEA)

Prices were available within the past 7 days and start at S$89 for one-way flights and S$165 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$165 Return, found 2 days ago
S$165
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$165 found 2 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$203 Return, found 2 days ago
S$203
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$203 found 2 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$241 Return, found 2 days ago
S$241
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$241 found 2 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$254 Return, found 2 days ago
S$254
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$254 found 2 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$293 Return, found 2 days ago
S$293
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$293 found 2 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$331 Return, found 2 days ago
S$331
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$331 found 2 days ago
Delta
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$370 Return, found 2 days ago
S$370
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$370 found 2 days ago
United
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$394 Return, found 2 days ago
S$394
Return
found 2 days ago
Select United flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$394 found 2 days ago
American Airlines
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$567 Return, found 2 days ago
S$567
Return
found 2 days ago
Select American Airlines flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$567 found 2 days ago
Hawaiian Airlines
Sat, 16 Aug - Mon, 18 Aug
PDX
Portland
SEA
Seattle
S$2,181 Return, found 2 days ago
S$2,181
Return
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, 16 Aug from Portland to Seattle, returning Mon, 18 Aug, priced at S$2,181 found 2 days ago

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

January is typically the cheapest month to fly

From S$98 - S$278 per traveller.

Graph displaying average flight prices per month

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Portland to Seattle route information
Origin airport
Portland Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
S$164
Distance
206 km

Flights from Portland to Seattle

There are several airlines that operate frequent flights from Portland (PDX) to Seattle (SEA) including

  • Alaska Airlines with 221 flights a week
  • Delta Air Lines with 83 flights a week

The earliest flight leaves Portland Intl. Airport at 05:00 and arrives at Seattle Tacoma Intl. Airport at 05:42. The last flight of the day departs Portland at 22:20 and arrives at Seattle at 23:10.

The flight distance from Portland to Seattle is about 209 km, the shortest flight is 00 hours 42 minutes with Delta Air Lines.

Expedia lets you search across the largest number of airlines and Seattle flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Portland Seattle flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Portland to Seattle trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Seattle flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Portland to Seattle with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

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 S$165. 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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