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$121+ Cheap flights from Portland, ME to Seattle (PWM - 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SEA
مارس 25 — أبريل 11
ر 3/25
ر 4/1
1 adult, Economy
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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 فبراير 23, 2026.

This American Airlines deal was found by Cheapflights users on 2/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ج 5/86:01 pm
PWM
-
SEA
1 stop9h 35m
American Airlines
ث 5/1911:16 am
SEA
-
PWM
1 stop10h 01m
American Airlines
Deal found 2/23$241
This Delta deal was found by Cheapflights users on 2/19. 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.
ر 5/271:18 pm
PWM
-
SEA
2 stops13h 23m
Delta
ج 5/295:30 am
SEA
-
PWM
1 stop7h 33m
Delta
Deal found 2/19$246
This Delta deal was found by Cheapflights users on 2/19. 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.
ر 5/271:18 pm
PWM
-
SEA
2 stops13h 23m
Delta
خ 5/2811:59 pm
SEA
-
PWM
2 stops8h 58m
Delta
Deal found 2/19$251
This Delta deal was found by Cheapflights users on 2/20. 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.
ر 3/252:30 pm
PWM
-
SEA
1 stop10h 52m
Delta
ن 4/206:00 am
SEA
-
PWM
1 stop6h 57m
Delta
Deal found 2/20$259
This American Airlines deal was found by Cheapflights users on 2/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ج 2/275:40 pm
PWM
-
SEA
1 stop9h 44m
American Airlines
ث 3/310:57 pm
SEA
-
PWM
1 stop10h 02m
American Airlines
Deal found 2/21$263
This Delta deal was found by Cheapflights users on 2/22. 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.
ن 3/232:30 pm
PWM
-
SEA
1 stop10h 52m
Delta
ن 3/3011:59 pm
SEA
-
PWM
2 stops9h 10m
Delta
Deal found 2/22$264
This Delta deal was found by Cheapflights users on 2/20. 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.
ث 3/245:23 am
PWM
-
SEA
2 stops12h 31m
Delta
ن 4/2011:14 pm
SEA
-
PWM
2 stops11h 57m
Delta
Deal found 2/20$269
This Delta deal was found by Cheapflights users on 2/21. 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.
ر 5/132:38 pm
PWM
-
SEA
1 stop11h 07m
Delta
ث 5/199:35 am
SEA
-
PWM
2 stops12h 08m
Delta
Deal found 2/21$275
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ث 4/216:01 pm
PWM
-
SEA
1 stop9h 29m
American Airlines
ث 4/2810:47 pm
SEA
-
PWM
1 stop8h 36m
American Airlines
Deal found 2/20$276
This American Airlines deal was found by Cheapflights users on 2/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ر 5/133:39 pm
PWM
-
SEA
2 stops11h 57m
American Airlines
ث 5/1911:16 am
SEA
-
PWM
1 stop10h 01m
American Airlines
Deal found 2/23$282

Find flight deals from Portland to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 فبراير 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$241
(American Airlines)

One-way from

$121
(American Airlines)

Popular in

March

Cheapest in

November

Average price

$445
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. 9% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 فبراير 23, 2026.
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

PWM - SEA

PWMSEA

Portland

ر 3/11

3:44 pm-10:53 pm

1 stop10h 09m

Seattle/Tacoma Intl

ث 3/24

11:59 pm-10:49 am

1 stop7h 50m

$241

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ث 3/10

3:44 pm-10:53 pm

1 stop10h 09m

Seattle/Tacoma Intl

ث 3/24

11:59 pm-10:49 am

1 stop7h 50m

$241

PortlandSeattle

PWM - SEA

PWMSEA

Portland

خ 2/26

2:35 pm-8:00 pm

1 stop8h 25m

Seattle/Tacoma Intl

ج 2/27

11:15 pm-12:00 pm

1 stop9h 45m

$276

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ح 5/24

2:38 pm-10:29 pm

1 stop10h 51m

Seattle/Tacoma Intl

خ 5/28

11:05 pm-11:57 am

1 stop9h 52m

$276

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ح 5/24

2:38 pm-10:29 pm

1 stop10h 51m

Seattle/Tacoma Intl

ج 5/29

5:30 am-4:03 pm

1 stop7h 33m

$276

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ث 4/21

6:01 pm-12:30 am

1 stop9h 29m

Seattle/Tacoma Intl

ث 4/28

11:16 am-12:13 am

1 stop9h 57m

$277

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ن 4/27

6:13 pm-12:19 am

1 stop9h 06m

Seattle/Tacoma Intl

ح 5/3

11:14 pm-10:18 am

1 stop8h 04m

$306

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ج 2/27

4:15 pm-10:43 pm

1 stop9h 28m

Seattle/Tacoma Intl

ح 3/1

12:18 pm-11:20 pm

1 stop8h 02m

$341

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ج 5/8

4:45 pm-10:42 pm

1 stop8h 57m

Seattle/Tacoma Intl

ث 5/19

7:00 am-11:59 pm

2 stops13h 59m

$346

PortlandSeattle

PWM - SEA

PWMSEA

Portland

ر 4/29

3:02 pm-9:23 pm

1 stop9h 21m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 19 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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, Maine-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Seattle 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 Portland, Maine-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, Maine 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 February 20, 2026.

The price you pay for your flight from Portland, Maine to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 4 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, Maine to Seattle?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Seattle (average of $118). Flying from Portland, Maine to Seattle in January is currently the most expensive (average of $247). 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.

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 فبراير 23, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Portland to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,236 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,236 reviews
Delta
7.9
Good
8,236 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,344 reviews
Delta
7.9
Good
8,236 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,339 reviews
Delta
7.9
Good
8,236 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,900 reviews
Delta
7.9
Good
8,236 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Sun Country Air
6.8
Okay
340 reviews
Delta
7.9
Good
8,236 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Portland, Maine to Seattle?

    Airlines like United Airlines and Delta fly from Portland, Maine to Seattle in about 8h 25m. The time it takes to get you to your destination can typically vary by up to 1h 44m. Airlines will cover a distance of 2481 mi. This flight may include one or multiple stops.

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

    Currently priced at $155, Delta will fly you from Portland, Maine to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and Sun Country Air - these airlines can fly you to your destination from $208 and $242, respectively. Delta is currently priced 67% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $138. However, be on the lookout for offers from JetBlue and United Airlines, as they are both options that can get you from Portland, Maine to Seattle for a low price.

  • 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, Maine to Seattle?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Seattle (average of $118). Flying from Portland, Maine to Seattle in January is currently the most expensive (average of $247). 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
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Portland to Seattle

Discover the top 6 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 فبراير 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$414FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$208Average$240FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$242Average$449FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$275Average$487FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$294Average$485FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$394Average$546FlexibilityNo cancel feeOn-time63%

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