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$104+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PWM
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Portland are usually found in January or September, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Find 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 October 28, 2025.

This Delta deal was found by Cheapflights users on 10/27. 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 11/87:10 amSEA - PWM
2 stops12h 09mDelta
Fri 11/144:53 pmPWM - SEA
1 stop8h 30mDelta
Deal found 10/27$202
This Delta deal was found by Cheapflights users on 10/26. 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 11/56:00 amSEA - PWM
2 stops13h 19mDelta
Mon 11/104:53 pmPWM - SEA
1 stop8h 30mDelta
Deal found 10/26$219
This Delta deal was found by Cheapflights users on 10/26. 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 11/116:00 amSEA - PWM
2 stops14h 54mDelta
Sat 11/156:00 amPWM - SEA
2 stops14h 15mDelta
Deal found 10/26$224
This Delta deal was found by Cheapflights users on 10/27. 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 12/311:55 pmSEA - PWM
2 stops9h 18mDelta
Wed 12/104:53 pmPWM - SEA
1 stop8h 32mDelta
Deal found 10/27$226
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/1010:53 amSEA - PWM
1 stop7h 57mUnited Airlines
Thu 11/135:00 pmPWM - SEA
1 stop8h 28mUnited Airlines
Deal found 10/26$231
This Delta deal was found by Cheapflights users on 10/27. 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 11/85:25 amSEA - PWM
2 stops13h 54mDelta
Mon 11/104:53 pmPWM - SEA
1 stop8h 30mDelta
Deal found 10/27$253
This Delta deal was found by Cheapflights users on 10/27. 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.
Fri 10/3111:28 amSEA - PWM
1 stop9h 37mDelta
Tue 11/42:38 pmPWM - SEA
1 stop10h 49mDelta
Deal found 10/27$254
This Delta deal was found by Cheapflights users on 10/28. 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 11/85:25 amSEA - PWM
2 stops13h 54mDelta
Sat 11/156:00 amPWM - SEA
2 stops11h 59mDelta
Deal found 10/28$258

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$202
(Delta)

One-way from

$104
(Delta)

Popular in

December

Cheapest in

January

Average price

$456
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. 6% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 28, 2025.
Use the filters below to find and compare flights from Seattle to Portland that are best for you.

Fly from

Seattle

Fly to

Portland

Route

Depart

Return

Price

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 11/8

7:10 am-10:19 pm

2 stops12h 09m

Portland

Sat 11/15

2:30 pm-8:06 pm

1 stop8h 36m

$202

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 11/8

5:25 am-10:19 pm

2 stops13h 54m

Portland

Fri 11/14

4:53 pm-12:11 am

2 stops10h 18m

$207

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 11/5

6:00 am-10:19 pm

2 stops13h 19m

Portland

Mon 11/10

4:53 pm-10:23 pm

1 stop8h 30m

$219

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 11/11

6:00 am-11:54 pm

2 stops14h 54m

Portland

Sat 11/15

6:00 am-5:15 pm

2 stops14h 15m

$224

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 11/10

10:53 am-9:50 pm

1 stop7h 57m

Portland

Thu 11/13

5:00 pm-10:28 pm

1 stop8h 28m

$231

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 11/11

5:05 am-3:48 pm

1 stop7h 43m

Portland

Sat 11/15

4:57 pm-10:28 pm

1 stop8h 31m

$231

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 11/10

5:05 am-3:48 pm

1 stop7h 43m

Portland

Wed 11/12

3:20 pm-11:10 pm

1 stop10h 50m

$231

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 12/3

11:55 pm-12:13 pm

2 stops9h 18m

Portland

Wed 12/10

6:08 am-2:59 pm

2 stops11h 51m

$231

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 11/12

11:55 pm-4:07 pm

2 stops13h 12m

$104

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 12/9

11:30 am-11:59 pm

1 stop9h 29m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 17 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Portland, Maine flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 October 24, 2025.

The best time to book flights from Seattle to Portland, Maine is 64 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, January is the cheapest month in which you can book a flight from Seattle to Portland, Maine (average of $98). Flying from Seattle to Portland, Maine in August is currently the most expensive (average of $178). 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 PWM?

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 October 28, 2025.

One of the essential ways to save on airfare from Seattle to Portland, Maine is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 32% on airfare.

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 October 28, 2025.
Read through reviews of airlines operating flights from Seattle to Portland, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,203 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,203 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,240 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
7,994 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,001 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,203 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 12h 09m. Delta provides one of the quickest options available for as low as $202. There are 2481 mi between Seattle and Portland, Maine.

  • 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 $172 on this airline. Additional options worth looking into are Delta and Sun Country Air, starting at $276 and $296 round-trip. JetBlue is 67% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Portland, Maine (average of $98). Flying from Seattle to Portland, Maine in August is currently the most expensive (average of $178). 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
Conway

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Seattle to Portland

Discover the top 7 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$172Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$276Average$541FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$296Average$408FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$297Average$507FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$316Average$561FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$387Average$504FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$576Average$816FlexibilityNo cancel feeOn-time75%

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