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$124+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PWM
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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

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 September 11, 2025.

Round-trip from

$245
(American Airlines)

One-way from

$124
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$453
From Seattle/Tacoma Intl to Portland
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One-way flight from Seattle/Tacoma Intl to Portland
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Highest demand for flights based on searches. 8% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:03 pmSEA - PWM
1 stop7h 45mAmerican Airlines
Wed 10/2212:11 pmPWM - SEA
1 stop15h 16mAmerican Airlines
Deal found 9/11$245
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:00 amSEA - PWM
1 stop9h 38mUnited Airlines
Sat 10/256:14 amPWM - SEA
1 stop8h 17mUnited Airlines
Deal found 9/11$247
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 10/2712:34 amSEA - PWM
1 stop7h 54mAmerican Airlines
Tue 10/283:38 pmPWM - SEA
1 stop9h 40mAmerican Airlines
Deal found 9/9$249
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 10/612:34 amSEA - PWM
2 stops10h 03mAmerican Airlines
Wed 10/156:00 amPWM - SEA
1 stop8h 03mAmerican Airlines
Deal found 9/10$254
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/2310:50 amSEA - PWM
1 stop7h 54mUnited Airlines
Tue 10/284:51 pmPWM - SEA
1 stop8h 54mUnited Airlines
Deal found 9/10$264
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 10/287:10 amSEA - PWM
2 stops12h 09mDelta
Mon 11/34:48 pmPWM - SEA
1 stop8h 15mDelta
Deal found 9/9$269
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/512:59 amSEA - PWM
1 stop13h 06mAmerican Airlines
Wed 11/125:37 pmPWM - SEA
1 stop8h 41mAmerican Airlines
Deal found 9/11$270
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 12/1310:59 pmSEA - PWM
1 stop10h 12mAmerican Airlines
Mon 12/1512:23 pmPWM - SEA
2 stops14h 15mAmerican Airlines
Deal found 9/10$279
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 10/2612:34 amSEA - PWM
1 stop7h 54mAmerican Airlines
Fri 10/313:38 pmPWM - SEA
1 stop9h 52mAmerican Airlines
Deal found 9/10$296

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 September 11, 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

Tue 10/28

6:00 am-4:03 pm

1 stop7h 03m

Portland

Mon 11/3

4:48 pm-10:03 pm

1 stop8h 15m

$264

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 10/29

11:15 pm-12:00 pm

1 stop9h 45m

Portland

Mon 11/3

4:48 pm-10:03 pm

1 stop8h 15m

$264

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 10/11

6:00 am-6:38 pm

1 stop9h 38m

Portland

Sat 10/18

10:30 am-6:31 pm

1 stop11h 01m

$307

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 10/8

10:50 am-9:44 pm

1 stop7h 54m

Portland

Wed 10/15

4:57 pm-10:30 pm

1 stop8h 33m

$308

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 10/31

6:20 am-5:48 pm

1 stop8h 28m

Portland

Mon 11/3

4:54 pm-10:45 pm

1 stop8h 51m

$328

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 10/17

12:34 am-2:10 pm

2 stops10h 36m

Portland

Sat 10/25

6:00 am-11:03 am

1 stop8h 03m

$332

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Thu 11/6

6:00 am-10:19 pm

2 stops13h 19m

Portland

Wed 11/12

4:53 pm-10:14 pm

1 stop8h 21m

$339

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 9/29

11:59 pm-1:22 pm

1 stop10h 23m

Portland

Wed 10/8

2:17 pm-10:21 pm

1 stop11h 04m

$376

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 10/25

10:39 am-10:45 pm

1 stop9h 06m

$124

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 10/7

6:00 am-6:23 pm

1 stop9h 23m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 16 results
1
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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 August 29, 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 $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 September 11, 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.

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 September 11, 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
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 7h 03m. Delta provides one of the quickest options available for as low as $264. 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 $172 on this airline. Additional options worth looking into are Delta and Sun Country Air, starting at $244 and $296 round-trip. JetBlue 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, Maine one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $124. However, be on the lookout for offers from United Airlines and Delta, 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Brunswick
North Conway
Auburn
Conway
Lewiston

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$172Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$244Average$547FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$296Average$408FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$328Average$566FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$330Average$519FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$387Average$504FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$676Average$833FlexibilityNo cancel feeOn-time75%

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