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Cheap flights from Seattle to Portland from $104

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 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:45 pm - 12:20 amSEA-PWM
7h 35m1 stop
Delta Logo
2:35 pm - 10:25 pmPWM-SEA
10h 50m1 stop
$221Delta
Find Deal
Wed, Jan 21 - Wed, Feb 4
Delta Logo
6:05 am - 11:05 pmSEA-PWM
14h 00m2 stops
Delta Logo
2:35 pm - 10:16 pmPWM-SEA
10h 41m1 stop
$226Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
9:45 pm - 12:06 pmSEA-PWM
11h 21m2 stops
American Airlines Logo
5:20 am - 3:34 pmPWM-SEA
13h 14m2 stops
$231American Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Delta Logo
6:05 am - 4:15 pmSEA-PWM
7h 10m1 stop
Delta Logo
2:35 pm - 10:16 pmPWM-SEA
10h 41m1 stop
$270Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
11:10 pm - 11:20 amSEA-PWM
9h 10m2 stops
Delta Logo
5:30 am - 12:20 pmPWM-SEA
9h 50m1 stop
$275Delta
Find Deal
Mon, Jan 19 - Fri, Jan 23
Delta Logo
6:05 am - 11:05 pmSEA-PWM
14h 00m2 stops
Delta Logo
2:35 pm - 10:00 pmPWM-SEA
10h 25m2 stops
$280Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
United Airlines Logo
12:12 pm - 11:20 pmSEA-PWM
8h 08m1 stop
United Airlines Logo
3:05 pm - 11:41 pmPWM-SEA
11h 36m1 stop
$307United Airlines
Find Deal
Sun, Feb 15 - Mon, Feb 23
United Airlines Logo
7:00 am - 11:30 pmSEA-PWM
13h 30m2 stops
United Airlines Logo
6:00 am - 3:44 pmPWM-SEA
12h 44m2 stops
$309United Airlines
Find Deal
Mon, Jan 19 - Tue, Jan 20
American Airlines Logo
11:33 pm - 12:00 pmSEA-PWM
9h 27m1 stop
American Airlines Logo
5:30 pm - 11:05 pmPWM-SEA
8h 35m1 stop
$320American Airlines
Find Deal
Mon, May 4 - Tue, May 12
Delta Logo
11:10 pm - 12:03 pmSEA-PWM
9h 53m1 stop
Delta Logo
5:30 am - 12:20 pmPWM-SEA
9h 50m1 stop
$330Delta
Find Deal
Mon, Jan 19 - Fri, Jan 23

Delta flights from Seattle to Portland, Maine

Our best Delta deals on Seattle to Portland, Maine flight tickets
Delta
Jan 21
SEA1:45 pmSeattle/Tacoma Intl
7h 35m
1 stop
PWM12:20 amPortland
Feb 4
PWM2:35 pmPortland
10h 50m
1 stop
SEA10:25 pmSeattle/Tacoma Intl
$221
Find similar
Delta
Mar 10
SEA6:05 amSeattle/Tacoma Intl
14h 00m
2 stops
PWM11:05 pmPortland
Mar 11
PWM2:35 pmPortland
10h 41m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$226
Find similar
Delta
Nov 18
SEA6:00 amSeattle/Tacoma Intl
7h 07m
1 stop
PWM4:07 pmPortland
Nov 23
PWM2:30 pmPortland
10h 55m
1 stop
SEA10:25 pmSeattle/Tacoma Intl
$266
Find similar

United Airlines flights from Seattle to Portland, Maine

Our best United Airlines deals on Seattle to Portland, Maine flight tickets
United Airlines
Nov 18
SEA5:05 amSeattle/Tacoma Intl
7h 43m
1 stop
PWM3:48 pmPortland
Nov 23
PWM5:00 pmPortland
8h 28m
1 stop
SEA10:28 pmSeattle/Tacoma Intl
$305
Find similar
United Airlines
Feb 15
SEA12:12 pmSeattle/Tacoma Intl
8h 08m
1 stop
PWM11:20 pmPortland
Feb 23
PWM3:05 pmPortland
11h 36m
1 stop
SEA11:41 pmSeattle/Tacoma Intl
$307
Find similar
United Airlines
Jan 19
SEA7:00 amSeattle/Tacoma Intl
13h 30m
2 stops
PWM11:30 pmPortland
Jan 20
PWM6:00 amPortland
12h 44m
2 stops
SEA3:44 pmSeattle/Tacoma Intl
$309
Find similar

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 November 17, 2025.
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

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 1/21

1:45 pm-12:20 am

1 stop7h 35m

Portland

Wed 2/4

2:35 pm-10:25 pm

1 stop10h 50m

$221

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 3/10

6:05 am-11:05 pm

2 stops14h 00m

Portland

Wed 3/11

2:35 pm-10:16 pm

1 stop10h 41m

$226

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 1/19

9:45 pm-12:06 pm

2 stops11h 21m

Portland

Fri 1/23

5:20 am-3:34 pm

2 stops13h 14m

$231

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 3/10

6:05 am-4:15 pm

1 stop7h 10m

Portland

Wed 3/11

2:35 pm-10:16 pm

1 stop10h 41m

$270

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 1/19

11:10 pm-11:20 am

2 stops9h 10m

Portland

Fri 1/23

5:30 am-12:20 pm

1 stop9h 50m

$275

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 3/10

6:05 am-11:05 pm

2 stops14h 00m

Portland

Wed 3/11

2:35 pm-10:00 pm

2 stops10h 25m

$280

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sun 2/15

12:12 pm-11:20 pm

1 stop8h 08m

Portland

Mon 2/23

3:05 pm-11:41 pm

1 stop11h 36m

$307

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 1/19

7:00 am-11:30 pm

2 stops13h 30m

Portland

Tue 1/20

6:00 am-3:44 pm

2 stops12h 44m

$309

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 5/4

11:33 pm-12:00 pm

1 stop9h 27m

Portland

Tue 5/12

5:30 pm-11:05 pm

1 stop8h 35m

$320

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 1/19

11:10 pm-12:03 pm

1 stop9h 53m

Portland

Fri 1/23

5:30 am-12:20 pm

1 stop9h 50m

$330

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 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 $328, 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 $426.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $473. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $686.

What is the cheapest time of day to depart on your flight to Portland, Maine?

In the afternoon is the cheapest time of day to fly from Seattle to Portland, Maine when you can find flight prices for as low as $439. Flying to Portland, Maine in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $649. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $529 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 $451 on momondo.

Can stopping save me money on Seattle to Portland, Maine flights?

You could potentially save up to 36% on your flight if you consider stops on a Seattle to Portland, Maine flight.

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

As of November 2025, prices for Seattle to Portland, Maine flights are approximately 10% cheaper 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

Direct flights

None
There are no direct flights from Seattle to Portland, Maine. There are no popular flight routes from Seattle to Portland, Maine.
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  • 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 10m, 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 $172Free CancellationRating
7.2
2,905 reviews
Search JetBlue flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Sun Country AirPriceFrom $296Free CancellationRating
6.9
334 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $297Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
SouthwestPriceFrom $387Free CancellationRating
8.0
4,245 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $576Free CancellationRating
8.0
11,314 reviews
Search Alaska Airlines 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
Lewiston
Freeport
Brunswick
Bartlett
Auburn
Gorham
Windham
Intervale
Oxford
Bath
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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