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$94+ Cheap flights from Seattle to Portland (SEA - PDX)

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PDX
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
1 adult, Economy
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Cheap flight deals from Seattle to Portland

Cheapest flights from Seattle to Portland
Explore the most affordable flight options available from Seattle to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.

This SmartFares deal was found by Cheapflights users on 7/30. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:30 pm
SEA
-
PDX
Nonstop1h 07m
Alaska Airlines
Fri 9/185:41 pm
PDX
-
SEA
Nonstop1h 10m
Alaska Airlines
Deal found 7/30$144
This Delta deal was found by Cheapflights users on 7/30. 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.
Sat 8/296:35 pm
SEA
-
PDX
Nonstop1h 09m
Delta
Sun 8/303:25 pm
PDX
-
SEA
Nonstop1h 12m
Delta
Deal found 7/30$157
This SmartFares deal was found by Cheapflights users on 8/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:08 am
SEA
-
PDX
Nonstop1h 10m
Alaska Airlines
Sat 9/265:41 pm
PDX
-
SEA
Nonstop1h 10m
Alaska Airlines
Deal found 8/3$163
This SmartFares deal was found by Cheapflights users on 8/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:30 pm
SEA
-
PDX
Nonstop1h 07m
Alaska Airlines
Wed 9/2311:48 am
PDX
-
SEA
Nonstop1h 02m
Alaska Airlines
Deal found 8/2$164
This Trip.com deal was found by Cheapflights users on 8/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:51 pm
SEA
-
PDX
Nonstop0h 59m
Alaska Airlines
Sat 9/199:32 pm
PDX
-
SEA
Nonstop1h 07m
Alaska Airlines
Deal found 8/2$171
This Trip.com deal was found by Cheapflights users on 8/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:59 pm
SEA
-
PDX
Nonstop1h 02m
Alaska Airlines
Tue 9/229:32 pm
PDX
-
SEA
Nonstop1h 07m
Alaska Airlines
Deal found 8/1$173
This Delta deal was found by Cheapflights users on 8/1. 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.
Wed 9/167:30 am
SEA
-
PDX
Nonstop1h 13m
Delta
Sat 9/195:30 am
PDX
-
SEA
Nonstop1h 14m
Delta
Deal found 8/1$177
This Trip.com deal was found by Cheapflights users on 8/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:35 am
SEA
-
PDX
Nonstop0h 58m
Alaska Airlines
Sun 9/68:07 am
PDX
-
SEA
Nonstop0h 56m
Alaska Airlines
Deal found 8/2$182
This Delta deal was found by Cheapflights users on 7/31. 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.
Sat 9/51:33 pm
SEA
-
PDX
Nonstop1h 12m
Delta
Sun 9/65:30 am
PDX
-
SEA
Nonstop1h 07m
Delta
Deal found 7/31$187
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 10/178:40 am
SEA
-
PDX
Nonstop1h 07m
Alaska Airlines
Wed 10/217:18 am
PDX
-
SEA
1 stop11h 15m
Alaska Airlines
Deal found 7/29$190

Find flight deals from Seattle to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Portland (PDX). 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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$144
(SmartFares)

One-way from

$94
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$200

Good round-trip deal

$357 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Portland flights.
Search Deals
From Seattle/Tacoma Intl to Portland
Search Deals
One-way flight from Seattle/Tacoma Intl to Portland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Portland.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Portland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Portland 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 August 4, 2026.
Use the filters below to find and compare flights from Seattle to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sat 8/29

6:35 pm-7:44 pm

Nonstop1h 09m

Portland

Sun 8/30

3:25 pm-4:37 pm

Nonstop1h 12m

$157

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sun 9/20

7:30 am-8:43 am

Nonstop1h 13m

Portland

Wed 9/30

5:50 pm-7:05 pm

Nonstop1h 15m

$187

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Sat 10/17

8:40 am-9:47 am

Nonstop1h 07m

Portland

Wed 10/21

7:18 am-6:33 pm

1 stop11h 15m

$190

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 9/16

11:32 am-6:37 pm

1 stop7h 05m

Portland

Wed 9/23

11:48 am-12:50 pm

Nonstop1h 02m

$235

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 9/23

3:51 pm-4:50 pm

Nonstop0h 59m

Portland

Mon 9/28

5:38 pm-9:20 am

1 stop15h 42m

$235

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Fri 8/28

9:18 pm-9:45 am

1 stop12h 27m

Portland

Fri 9/4

9:32 pm-10:39 pm

Nonstop1h 07m

$260

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 8/26

6:35 pm-7:44 pm

Nonstop1h 09m

Portland

Sat 8/29

3:25 pm-4:37 pm

Nonstop1h 12m

$287

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Tue 8/18

4:06 pm-5:14 pm

Nonstop1h 08m

Portland

Mon 8/24

5:30 am-6:37 am

Nonstop1h 07m

$317

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 8/19

1:33 pm-2:45 pm

Nonstop1h 12m

Portland

Wed 8/26

7:05 am-8:17 am

Nonstop1h 12m

$317
Quickest round-trip

SeattlePortland

SEA - PDX

SEAPDX

Seattle/Tacoma Intl

Wed 8/19

9:59 pm-10:58 pm

Nonstop0h 59m

Portland

Sat 8/22

9:32 pm-10:39 pm

Nonstop1h 07m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Seattle to Portland

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 Seattle to Portland in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 Seattle-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Portland flights, Cheapflights users trust FlightHub the most. FlightHub 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 Seattle-Portland 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 Seattle to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Seattle 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 Seattle to Portland

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Portland (average of $99). Flying from Seattle to Portland in June is currently the most expensive (average of $406). 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 SEA to PDX?

Find hourly flight availability from Seattle to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 4, 2026.

It’s typically best to fly out from Seattle to Portland in the morning. Doing so could potentially save you 25% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Seattle to Portland. Price data was last updated on August 1, 2026.

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

How much does it cost to fly round-trip from Seattle to Portland?

Airfare is typical for this route at the moment.

Seattle to Portland flights typically cost between $127 and $257 in September.
The cheapest round-trip price found within the last 5 days was $144 on Alaska Airlines (Sep 11-Sep 18).

The best insider tips for Seattle to Portland 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 Seattle to Portland trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on PDX and SEA

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

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated August 4, 2026.
See what other customers who have flown with Alaska Airlines and Delta from Seattle to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,761 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.0

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
7.9
Good
12,761 reviews
Alaska Airlines
7.9
Good
12,761 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.0

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Delta
7.8
Good
8,483 reviews
Alaska Airlines
7.9
Good
12,761 reviews

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.0

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Portland. 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 Seattle to Portland?

    If you book a flight from Seattle to Portland, you will be flying from Seattle/Tacoma Intl to Portland. Flights to Portland (PDX) from Seattle/Tacoma Intl (SEA) take 0h 50m for a nonstop flight. There are 35 flights from Seattle/Tacoma Intl to Portland per day from 3 airlines.

  • How popular is this Seattle to Portland flight route?

    This flight path from Seattle/Tacoma Intl to Portland was viewed by 20 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 Seattle to Portland?

    There are many flights that can get you from Seattle to Portland in 1h 07m. Fly via Delta or Alaska Airlines to get the fastest option. There are 129 mi between Seattle and Portland. All flights are typically nonstop.

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

    Cheapflights users have booked flights from Seattle to Portland round-trip from $79. Other airlines that can offer you cheap pricing are Alaska Airlines, from $98, and Air Excursions, from $249. Delta is 68% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Hawaiian Airlines and Delta, as they are both options that can get you from Seattle to Portland for a low price.

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

    Consider Scandinavian Airlines (84%), Korean Air (84%) or KLM (82%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Portland.

  • What are the cheapest flights from Seattle to Portland?

    On average you can expect to pay $1,238 for a flight from Seattle to Portland. The cheapest flight overall is $148 while the most popular route, (Seattle/Tacoma Intl - Portland) is currently priced at $177.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Portland 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 Seattle to Portland?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Portland (average of $99). Flying from Seattle to Portland in June is currently the most expensive (average of $406). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Beaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Hillsboro
Vancouver
Kelso
Clackamas
Troutdale
Cannon Beach
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Astoria
Gresham
Silverton

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Seattle to Portland

Discover the top 3 airlines that operate flights from Seattle to Portland. 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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$79Average$182FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$98Average$230FlexibilityNo cancel feeOn-time75%
Air ExcursionsCheapest$249Average$425FlexibilityNo cancel feeOn-timeN/A

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