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$67+ Cheap flights from Portland to Seattle (PDX - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SEA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Portland to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Portland to Seattle/Tacoma Intl are usually found in January or December, booked 47 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Portland to Seattle

Cheapest flights from Portland to Seattle
Explore the most affordable flight options available from Portland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Delta deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:19 amPDX - SEA
Nonstop1h 16mDelta
Sat 12/278:59 pmSEA - PDX
Nonstop1h 00mDelta
Deal found 12/9$297
This Alaska Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:59 pmPDX - SEA
Nonstop0h 59mAlaska Airlines
Wed 12/248:11 pmSEA - PDX
1 stop13h 27mAlaska Airlines
Deal found 12/10$318
This Alaska Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:00 amPDX - SEA
1 stop6h 08mAlaska Airlines
Tue 12/165:00 pmSEA - PDX
Nonstop0h 55mAlaska Airlines
Deal found 12/9$321
This Alaska Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/209:42 pmPDX - SEA
1 stop11h 12mAlaska Airlines
Sun 12/2111:11 amSEA - PDX
Nonstop1h 02mAlaska Airlines
Deal found 12/11$327
This Alaska Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:34 pmPDX - SEA
Nonstop1h 05mAlaska Airlines
Fri 1/307:50 pmSEA - PDX
Nonstop0h 57mAlaska Airlines
Deal found 12/10$333
This Alaska Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:01 amPDX - SEA
1 stop7h 43mAlaska Airlines
Fri 12/194:59 pmSEA - PDX
Nonstop0h 58mAlaska Airlines
Deal found 12/10$351
This Alaska Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:00 amPDX - SEA
1 stop6h 08mAlaska Airlines
Mon 12/155:00 pmSEA - PDX
Nonstop0h 55mAlaska Airlines
Deal found 12/11$381
This Delta deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:15 pmPDX - SEA
Nonstop1h 11mDelta
Thu 12/253:25 pmSEA - PDX
Nonstop0h 59mDelta
Deal found 12/11$382
This Travelocity deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:45 pmPDX - SEA
1 stop8h 34mAlaska Airlines
Fri 12/267:50 pmSEA - PDX
Nonstop0h 55mAlaska Airlines
Deal found 12/10$385
This Alaska Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/142:55 pmPDX - SEA
1 stop17h 57mAlaska Airlines
Mon 12/1512:45 pmSEA - PDX
Nonstop1h 05mAlaska Airlines
Deal found 12/10$387
This Alaska Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:11 pmPDX - SEA
Nonstop1h 04mAlaska Airlines
Tue 12/309:58 pmSEA - PDX
Nonstop1h 01mAlaska Airlines
Deal found 12/11$392

Find flight deals from Portland to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$89
(Kiwi.com)

One-way from

$67
(Jettzy)

Popular in

March

Cheapest in

January

Average price

$163

Good round-trip deal

$492 or less

Good one-way deal

$205 or less
Provider with most accurate pricing for Portland-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Seattle/Tacoma Intl flights.
Search Deals
From Portland to Seattle/Tacoma Intl
Search Deals
One-way flight from Portland to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Portland to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Portland to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Portland to Seattle that are best for you.

Fly from

Portland

Fly to

Seattle

Route

Depart

Return

Price

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Mon 1/26

1:38 pm-2:43 pm

Nonstop1h 05m

Seattle/Tacoma Intl

Mon 2/2

7:50 pm-8:47 pm

Nonstop0h 57m

$94

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Thu 2/5

7:10 am-8:23 am

Nonstop1h 13m

Seattle/Tacoma Intl

Sat 2/21

9:45 pm-10:48 pm

Nonstop1h 03m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Sat 2/14

1:36 pm-2:41 pm

Nonstop1h 05m

Seattle/Tacoma Intl

Wed 2/18

9:40 pm-10:41 pm

Nonstop1h 01m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Wed 2/4

5:15 pm-6:23 pm

Nonstop1h 08m

Seattle/Tacoma Intl

Sat 2/7

9:05 am-10:07 am

Nonstop1h 02m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Thu 1/8

7:37 pm-8:48 pm

Nonstop1h 11m

Seattle/Tacoma Intl

Thu 1/15

7:25 am-8:33 am

Nonstop1h 08m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Thu 2/5

5:15 pm-6:23 pm

Nonstop1h 08m

Seattle/Tacoma Intl

Sun 2/8

7:25 am-8:33 am

Nonstop1h 08m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Thu 1/22

5:30 am-6:40 am

Nonstop1h 10m

Seattle/Tacoma Intl

Sun 1/25

7:25 am-8:33 am

Nonstop1h 08m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Sat 1/10

5:15 pm-6:23 pm

Nonstop1h 08m

Seattle/Tacoma Intl

Sat 1/17

7:25 am-8:33 am

Nonstop1h 08m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Thu 1/8

5:30 am-6:40 am

Nonstop1h 10m

Seattle/Tacoma Intl

Sun 1/11

9:05 am-10:07 am

Nonstop1h 02m

$99

PortlandSeattle

PDX - SEA

PDXSEA

Portland

Sat 1/24

7:10 am-8:23 am

Nonstop1h 13m

Seattle/Tacoma Intl

Sat 1/31

7:59 pm-8:59 pm

Nonstop1h 00m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 22 results
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Compare providers for flights from Portland to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Seattle in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Seattle flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Portland-Seattle flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Portland-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Seattle flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Seattle

How far ahead should I book a flight from Portland to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Seattle. Price data was last updated on December 5, 2025.

The price you pay for your flight from Portland to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Seattle?

Currently, December is the cheapest month in which you can book a flight from Portland to Seattle (average of $86). Flying from Portland to Seattle in July is currently the most expensive (average of $195). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to SEA?

Find hourly flight availability from Portland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

When flying from Portland to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 25% versus a flight at noon.

What is the cheapest day to fly from Portland to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Portland to Seattle. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Portland to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Portland to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Portland to Seattle trip
Airlines
Qatar Airways

Qatar Airways allows only one carry-on item in economy, plan accordingly.


Qatar Airways' business class offers luxury with pajamas and private pods.

Read more about Qatar AirwaysBy Brandon Schultz
Korean Air

Korean Air's Sky Priority lanes streamline check-in for Prestige and SkyTeam Elite.


Korean Air offers 33”-34” seat pitch in economy, more spacious than many airlines.

Read more about Korean AirBy Yulia Denisyuk
Alaska Airlines

Alaska Airlines offers 32” legroom in Main Cabin, ideal for short flights.


Alaska Airlines provides Wi-Fi for a flat fee, great for business travelers.

Read more about Alaska AirlinesBy Robert Schrader
Airports
PDX

Expect security wait times up to 15 minutes off-peak, longer during rush hours. Use Express Lanes if eligible for faster screening.

Read more about PDXBy Brandon Schultz
SEA

Use the Link light rail from SEA to downtown Seattle. It's inexpensive, runs every 10 minutes, and takes less than 40 minutes.

Read more about SEABy Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on Qatar Airways, PDX and SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Yulia Denisyuk

Yulia Denisyuk

Expert on Korean Air

Yulia Denisyuk

Yulia Denisyuk

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Portland to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,429 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,429 reviews
Alaska Airlines
8.0
Very good
11,429 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,429 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,818 reviews
Alaska Airlines
8.0
Very good
11,429 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Related info for your journey

Find useful and relevant information for your journey from Portland to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Portland to Seattle?

    If you book a flight from Portland to Seattle, you will be flying from Portland to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Portland (PDX) take 0h 53m for a nonstop flight. There are 52 flights from Portland to Seattle per day from 3 airlines.

  • How popular is this Portland to Seattle flight route?

    The Portland to Seattle/Tacoma Intl flight path was viewed by 212 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Portland to Seattle?

    There are many flights that can get you from Portland to Seattle in 1h 05m. Fly via Alaska Airlines or Delta to get the fastest option. The distance from Portland to Seattle is about 129 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Portland to Seattle round-trip?

    Cheapflights users have booked flights from Portland to Seattle round-trip from $79. Other airlines that can offer you cheap pricing are Hawaiian Airlines, from $103, and Alaska Airlines, from $127. Delta is currently priced 63% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland to Seattle one-way?

    One-way options have recently been found by users for as low as $59 on Delta. Other airlines that offer cheap prices include Alaska Airlines from $69 and Hawaiian Airlines from $78 one-way.

  • What are the most reliable airlines from Portland to Seattle?

    No one likes to see their flight delayed. When booking a flight from Portland to Seattle consider choosing Sun Country Air (100%), Virgin Atlantic (96%) or Delta (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portland to Seattle?

    While on average a flight from Portland to Seattle is generally $881, our data shows the cheapest flight currently is $78. When looking at the most popular route, (Portland - Seattle/Tacoma Intl), you can expect to pay $89 for that flight.

  • Can I find deals for flights from Portland to Seattle that include hotel bookings?

    Yes. In addition to deals on Portland to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Seattle.

  • Can I find deals for business class flights from Portland to Seattle?

    Yes. Cheapflights offers flight deals from Portland to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Seattle?

    Currently, December is the cheapest month in which you can book a flight from Portland to Seattle (average of $86). Flying from Portland to Seattle in July is currently the most expensive (average of $195). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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Alternative routes for Portland to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Portland to Seattle

Discover the top 3 airlines that operate flights from Portland to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$79Average$177FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$103Average$217FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$127Average$233FlexibilityNo cancel feeOn-time75%

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