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$131+ Cheap flights from Seattle to Portland, ME (SEA - PWM)

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PWM
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This American Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 4/1412:34 pm
SEA
-
PWM
1 stop7h 53m
American Airlines
Tue 4/216:01 pm
PWM
-
SEA
1 stop9h 35m
American Airlines
Deal found 3/6$261
This Delta deal was found by Cheapflights users on 3/8. 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 5/79:35 am
SEA
-
PWM
2 stops12h 08m
Delta
Thu 5/1412:55 pm
PWM
-
SEA
2 stops14h 17m
Delta
Deal found 3/8$271
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:25 pm
SEA
-
PWM
1 stop7h 39m
United Airlines
Tue 3/314:23 pm
PWM
-
SEA
1 stop9h 14m
United Airlines
Deal found 3/10$281
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:47 pm
SEA
-
PWM
1 stop8h 36m
American Airlines
Tue 4/143:39 pm
PWM
-
SEA
2 stops11h 57m
American Airlines
Deal found 3/10$286
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:34 pm
SEA
-
PWM
1 stop7h 53m
American Airlines
Wed 4/153:39 pm
PWM
-
SEA
2 stops11h 57m
American Airlines
Deal found 3/9$294
This Delta deal was found by Cheapflights users on 3/9. 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.
Mon 9/2811:53 pm
SEA
-
PWM
1 stop7h 56m
Delta
Fri 10/212:50 pm
PWM
-
SEA
1 stop10h 39m
Delta
Deal found 3/9$296
This American Airlines deal was found by Cheapflights users on 3/7. 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.
Tue 8/118:20 am
SEA
-
PWM
1 stop7h 57m
American Airlines
Tue 8/256:50 pm
PWM
-
SEA
1 stop9h 11m
American Airlines
Deal found 3/7$298
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:53 pm
SEA
-
PWM
1 stop7h 30m
United Airlines
Mon 5/44:50 pm
PWM
-
SEA
1 stop10h 09m
United Airlines
Deal found 3/9$301
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1311:16 am
SEA
-
PWM
1 stop9h 06m
American Airlines
Tue 5/196:01 pm
PWM
-
SEA
1 stop9h 35m
American Airlines
Deal found 3/10$308

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 (PWM). 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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(American Airlines)

One-way from

$131
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$393
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. 14% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 10, 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 - PWM

SEAPWM

Seattle/Tacoma Intl

Thu 5/7

9:35 am-12:43 am

2 stops12h 08m

Portland

Thu 5/14

12:55 pm-12:12 am

2 stops14h 17m

$271

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 4/29

11:45 pm-2:10 pm

2 stops11h 25m

Portland

Tue 5/5

1:00 pm-10:30 pm

2 stops12h 30m

$340
Quickest round-trip

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 5/5

8:10 am-7:04 pm

1 stop7h 54m

Portland

Wed 5/6

3:23 pm-10:59 pm

1 stop10h 36m

$361

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 3/24

11:59 pm-1:57 pm

2 stops10h 58m

Portland

Tue 3/31

4:23 pm-10:37 pm

1 stop9h 14m

$366

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 8/18

11:05 pm-12:25 pm

2 stops10h 20m

Portland

Sun 8/30

6:10 am-3:00 pm

2 stops11h 50m

$395

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Thu 7/23

5:30 am-10:10 pm

1 stop13h 40m

Portland

Tue 7/28

5:30 am-2:20 pm

2 stops11h 50m

$410

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 8/8

11:00 pm-4:35 pm

1 stop14h 35m

Portland

Sun 8/16

6:10 am-3:00 pm

2 stops11h 50m

$426

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Thu 5/28

7:00 am-11:51 pm

2 stops13h 51m

Portland

Sun 5/31

5:15 am-11:51 am

1 stop9h 36m

$469

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 8/14

6:00 pm-10:02 am

2 stops13h 02m

Portland

Wed 8/19

5:15 am-4:15 pm

2 stops14h 00m

$471
Cheapest one-way

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 6/8

9:25 pm-9:55 am

1 stop9h 30m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Portland. Price data was last updated on March 6, 2026.

The best time to book flights from Seattle to Portland, Maine is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Seattle to Portland, Maine (average of $118). Flying from Seattle to Portland, Maine in January is currently the most expensive (average of $257). 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 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 March 10, 2026.
Read through reviews of airlines operating flights from Seattle to Portland, such as Alaska Airlines,Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
12,025 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
8.0
Very good
12,025 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Southwest
8.0
Very good
4,317 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,278 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,414 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,419 reviews
Alaska Airlines
8.0
Very good
12,025 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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.

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

    A quick flight from Seattle to Portland, Maine can take about 10h 58m. Delta provides one of the quickest options available for as low as $366. There are 2481 mi between Seattle and Portland, Maine. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Our cheapest airline available from Seattle to Portland, Maine is JetBlue. Our recent data shows that you can find tickets from as low as $140 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $221 and $274 round-trip. JetBlue is 71% 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, Maine one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $110. However, be on the lookout for offers from Delta and Sun Country Air, as they are both options that can get you from Seattle to Portland, Maine for a low price.

  • 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, Maine?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Portland, Maine (average of $118). Flying from Seattle to Portland, Maine in January is currently the most expensive (average of $257). 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
North Conway
Brunswick
Auburn
Lewiston
Conway

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Seattle to Portland

Discover the top 6 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$140Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$221Average$491FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$274Average$483FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$274Average$524FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$320Average$778FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$387Average$504FlexibilityNo cancel feeOn-time63%

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