HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portland

$141+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PWM
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Portland 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Portland are usually found in January or February, booked 90 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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 June 12, 2025.

Round-trip from

$261
(JetBlue)

One-way from

$141
(JetBlue)

Popular in

December

Cheapest in

January

Average price

$510
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. 4% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/511:40 pmSEA - PWM
1 stop10h 42mJetBlue
Fri 9/122:17 pmPWM - SEA
1 stop10h 53mJetBlue
Deal found 6/9$261
This American Airlines deal was found by Cheapflights users on 6/12. 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 8/1910:50 pmSEA - PWM
1 stop8h 51mAmerican Airlines
Thu 9/46:00 amPWM - SEA
1 stop9h 05mAmerican Airlines
Deal found 6/12$297
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2511:55 pmSEA - PWM
1 stop7h 47mDelta
Sat 9/131:50 pmPWM - SEA
1 stop9h 42mDelta
Deal found 6/10$306
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:59 pmSEA - PWM
1 stop8h 58mSun Country Air
Sat 7/191:16 pmPWM - SEA
1 stop12h 31mSun Country Air
Deal found 6/10$325
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:55 amSEA - PWM
1 stop7h 10mSouthwest
Sat 9/271:15 pmPWM - SEA
1 stop9h 40mSouthwest
Deal found 6/11$355
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 7/312:20 amSEA - PWM
2 stops10h 00mUnited Airlines
Sat 7/197:15 pmPWM - SEA
1 stop8h 41mUnited Airlines
Deal found 6/10$378

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 June 12, 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

Fri 9/5

11:40 pm-1:22 pm

1 stop10h 42m

Portland

Fri 9/12

2:17 pm-10:10 pm

1 stop10h 53m

$261

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 8/19

10:50 pm-10:41 am

1 stop8h 51m

Portland

Thu 9/4

6:00 am-12:05 pm

1 stop9h 05m

$297

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 8/25

11:55 pm-10:42 am

1 stop7h 47m

Portland

Sat 9/13

1:50 pm-8:32 pm

1 stop9h 42m

$306

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 7/4

11:59 pm-11:57 am

1 stop8h 58m

Portland

Sat 7/19

1:16 pm-10:47 pm

1 stop12h 31m

$325

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 9/20

5:55 am-4:05 pm

1 stop7h 10m

Portland

Sat 9/27

1:15 pm-7:55 pm

1 stop9h 40m

$355

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Thu 7/3

12:20 am-1:20 pm

2 stops10h 00m

Portland

Sat 7/19

7:15 pm-12:56 am

1 stop8h 41m

$378

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 9/30

11:40 pm-1:22 pm

1 stop10h 42m

$141

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 8/18

11:55 pm-10:42 am

1 stop7h 47m

$149

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 8/16

5:25 am-6:39 pm

1 stop10h 14m

$158

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 7/19

11:59 pm-11:45 am

1 stop8h 46m

$173

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 15 results
1
2

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 June 9, 2025.

The best time to book flights from Seattle to Portland, Maine is 90 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 $296). Flying from Seattle to Portland, Maine in July is currently the most expensive (average of $394). 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 June 12, 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 33% on airfare.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Read through reviews of airlines operating flights from Seattle to Portland, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 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 $261 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $297 and $306 round-trip. JetBlue is 52% 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 JetBlue, with whom users have recently found tickets for as low as $141. However, be on the lookout for offers from Delta and American Airlines, 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, January is the cheapest month in which you can book a flight from Seattle to Portland, Maine (average of $296). Flying from Seattle to Portland, Maine in July is currently the most expensive (average of $394). 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
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$198Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$244Average$516FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$276Average$370FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$316Average$557FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$318Average$816FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$352Average$542FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$401Average$492FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.