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Cheap flights from Seattle to Portland from $146

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Portland departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:34 pm - 11:27 pm
SEA
-
PWM
7h 53m
1 stop
American Airlines Logo
2:24 pm - 10:59 pm
PWM
-
SEA
11h 35m
1 stop
$306American Airlines
Wed, May 6 - Wed, May 27
United Airlines Logo
7:05 pm - 8:49 am
SEA
-
PWM
10h 44m
2 stops
United Airlines Logo
6:25 pm - 11:59 pm
PWM
-
SEA
8h 34m
1 stop
$311United Airlines
Wed, May 6 - Wed, May 27
American Airlines Logo
11:16 am - 12:13 am
SEA
-
PWM
9h 57m
1 stop
American Airlines Logo
6:00 am - 11:34 am
PWM
-
SEA
8h 34m
1 stop
$315American Airlines
Tue, May 5 - Tue, May 12
Delta Logo
11:14 pm - 12:05 pm
SEA
-
PWM
9h 51m
1 stop
Delta Logo
12:50 pm - 8:41 pm
PWM
-
SEA
10h 51m
1 stop
$316Delta
Mon, May 4 - Tue, May 12
Delta Logo
11:59 pm - 12:05 pm
SEA
-
PWM
9h 06m
2 stops
Delta Logo
2:38 pm - 10:24 pm
PWM
-
SEA
10h 46m
1 stop
$321Delta
Mon, May 4 - Sat, May 9
Delta Logo
6:00 am - 11:23 pm
SEA
-
PWM
14h 23m
2 stops
Delta Logo
12:50 pm - 10:03 pm
PWM
-
SEA
12h 13m
2 stops
$326Delta
Tue, May 5 - Tue, May 12
American Airlines Logo
12:34 pm - 11:27 pm
SEA
-
PWM
7h 53m
1 stop
American Airlines Logo
6:00 am - 11:34 am
PWM
-
SEA
8h 34m
1 stop
$334American Airlines
Tue, May 5 - Tue, May 12
American Airlines Logo
1:46 pm - 12:35 am
SEA
-
PWM
7h 49m
1 stop
American Airlines Logo
5:36 pm - 12:59 am
PWM
-
SEA
10h 23m
1 stop
$339American Airlines
Fri, May 29 - Mon, Jun 8
American Airlines Logo
8:10 am - 9:46 pm
SEA
-
PWM
10h 36m
1 stop
American Airlines Logo
5:36 pm - 12:59 am
PWM
-
SEA
10h 23m
1 stop
$341American Airlines
Sat, Jun 6 - Wed, Jun 10
American Airlines Logo
8:20 am - 7:16 pm
SEA
-
PWM
7h 56m
1 stop
American Airlines Logo
6:00 am - 11:40 am
PWM
-
SEA
8h 40m
1 stop
$345American Airlines
Tue, Oct 6 - Tue, Oct 13

Delta flights from Seattle to Portland, Maine

Our best Delta deals on Seattle to Portland, Maine flight tickets
Delta
May 4
SEA11:14 pmSeattle/Tacoma Intl
9h 51m
1 stop
PWM12:05 pmPortland
May 9
PWM4:49 pmPortland
8h 59m
1 stop
SEA10:48 pmSeattle/Tacoma Intl
$316
Delta
May 4
SEA11:59 pmSeattle/Tacoma Intl
9h 06m
2 stops
PWM12:05 pmPortland
May 9
PWM2:38 pmPortland
10h 46m
1 stop
SEA10:24 pmSeattle/Tacoma Intl
$321
Delta
May 5
SEA6:00 amSeattle/Tacoma Intl
14h 23m
2 stops
PWM11:23 pmPortland
May 12
PWM12:50 pmPortland
12h 13m
2 stops
SEA10:03 pmSeattle/Tacoma Intl
$326

American Airlines flights from Seattle to Portland, Maine

Our best American Airlines deals on Seattle to Portland, Maine flight tickets
American Airlines
May 6
SEA12:34 pmSeattle/Tacoma Intl
7h 53m
1 stop
PWM11:27 pmPortland
May 27
PWM2:24 pmPortland
11h 35m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$306
American Airlines
May 5
SEA11:16 amSeattle/Tacoma Intl
9h 57m
1 stop
PWM12:13 amPortland
May 12
PWM6:00 amPortland
8h 34m
1 stop
SEA11:34 amSeattle/Tacoma Intl
$315
American Airlines
May 5
SEA12:34 pmSeattle/Tacoma Intl
7h 53m
1 stop
PWM11:27 pmPortland
May 12
PWM6:00 amPortland
8h 34m
1 stop
SEA11:34 amSeattle/Tacoma Intl
$334

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Portland, Maine 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, momondo users made 832,500 searches. Data last updated April 13, 2026.
Use the filters below to find and compare flights from Seattle to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 5/6

12:34 pm-11:27 pm

1 stop7h 53m

Portland

Wed 5/27

2:24 pm-10:59 pm

1 stop11h 35m

$306

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 5/6

7:05 pm-8:49 am

2 stops10h 44m

Portland

Wed 5/27

6:25 pm-11:59 pm

1 stop8h 34m

$311

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 5/5

11:16 am-12:13 am

1 stop9h 57m

Portland

Tue 5/12

6:00 am-11:34 am

1 stop8h 34m

$315

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 5/4

11:14 pm-12:05 pm

1 stop9h 51m

Portland

Tue 5/12

12:50 pm-8:41 pm

1 stop10h 51m

$316

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 5/4

11:59 pm-12:05 pm

2 stops9h 06m

Portland

Sat 5/9

2:38 pm-10:24 pm

1 stop10h 46m

$321

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 5/5

6:00 am-11:23 pm

2 stops14h 23m

Portland

Tue 5/12

12:50 pm-10:03 pm

2 stops12h 13m

$326
Quickest round-trip

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 5/5

12:34 pm-11:27 pm

1 stop7h 53m

Portland

Tue 5/12

6:00 am-11:34 am

1 stop8h 34m

$334

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 5/29

1:46 pm-12:35 am

1 stop7h 49m

Portland

Mon 6/8

5:36 pm-12:59 am

1 stop10h 23m

$339

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sat 6/6

8:10 am-9:46 pm

1 stop10h 36m

Portland

Wed 6/10

5:36 pm-12:59 am

1 stop10h 23m

$341

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 10/6

8:20 am-7:16 pm

1 stop7h 56m

Portland

Tue 10/13

6:00 am-11:40 am

1 stop8h 40m

$345

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

How to get the cheapest flight ticket from Seattle to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Portland, Maine?

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Seattle is in January. Flight prices, which tend to average around $308, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $408.

How far in advance should I book a flight to Portland, Maine?

You are more likely to see cheaper flights to Portland, Maine from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $496 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Seattle for as low as $284 on momondo.

How have Seattle to Portland, Maine flight prices changed over time?

As of April 2026, prices for Seattle to Portland, Maine flights are approximately 36% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Portland, Maine (SEA to PWM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Portland, Maine

Fastest flight time

7h 40m

Direct flights

None
The fastest flight from Seattle to Portland, Maine takes 7h 40m
There are no direct flights from Seattle to Portland, Maine. There are no popular flight routes from Seattle to Portland, Maine.
Search flight deals

Frequently asked questions about flying from Seattle to Portland, Maine

  • How far is Seattle/Tacoma Intl to Portland by plane?

    A flight from Seattle/Tacoma Intl to Portland will travel around 2481.6 mi. Flights usually cover this in 7h 40m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Portland Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Portland Airport were last updated today.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Portland Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Portland Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The travel and health documents you'll need for your trip to Portland Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Portland, Maine?

Best airlines flying from Seattle to Portland, Maine

Compare and see reviews for airlines that fly from Seattle to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $140Free CancellationRating
7.2
2,929 reviews
Search JetBlue flights
DeltaPriceFrom $221Free CancellationRating
7.9
8,406 reviews
Search Delta flights
United AirlinesPriceFrom $274Free CancellationRating
7.4
9,579 reviews
Search United Airlines flights
American AirlinesPriceFrom $280Free CancellationRating
7.1
11,565 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $320Free CancellationRating
7.9
12,227 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $387Free CancellationRating
8.0
4,330 reviews
Search Southwest flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Freeport
Lewiston
Brunswick
Bartlett
Gorham
Auburn
Windham
Intervale
Bath
Oxford
Georgetown
Falmouth
Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Portland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Portland. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Portland with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Portland flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Portland?

Once all potential Seattle to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seattle to Portland right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portland from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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