Which layover airport has the shortest travel time from Seattle to Portland, Maine?

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 6h 57m.

What airlines fly to Portland, Maine?

Delta, Alaska Airlines and JetBlue are the top three most popular airlines that fly to Portland, Maine from Seattle according to our data. Delta is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 8 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Seattle to Portland, Maine?

Flights via Minneapolis (MSP) offer the lowest average round-trip price of $413.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Portland?

Delta and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Portland

Which layover airport has the shortest connection time from Seattle to Portland, Maine?

Detroit (DTW) has the shortest average layover time for this route: 0h 54m.

Which airport is the most popular layover for flights between Seattle and Portland, Maine?

Minneapolis (MSP) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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?

There are 4 operators available for flights from Seattle/Tacoma Intl Airport to Portland Airport as of September 2026.

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.

$188 Cheap Flights from Seattle to Portland, Maine in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Portland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:17 am - 11:43 pmSEA Seattle/Tacoma Intl-PWM Portland

9h 26m1 stop Chicago O'Hare Intl

6:00 am - 12:18 pmPWM Portland-SEA Seattle/Tacoma Intl

9h 18m1 stop Charlotte Douglas

$375American Airlines

Sat, Oct 17 - Sat, Oct 24

6:00 am - 4:02 pmSEA Seattle/Tacoma Intl-PWM Portland

7h 02m1 stop Detroit Metropolitan Wayne County

4:47 pm - 10:05 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 18m1 stop Detroit Metropolitan Wayne County

$375Delta

Sat, Oct 24 - Sat, Oct 31

6:00 am - 4:02 pmSEA Seattle/Tacoma Intl-PWM Portland

7h 02m1 stop Detroit Metropolitan Wayne County

4:47 pm - 10:05 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 18m1 stop Detroit Metropolitan Wayne County

$375Delta

Wed, Oct 28 - Sat, Nov 7

7:10 pm - 8:19 amSEA Seattle/Tacoma Intl-PWM Portland

10h 09m2 stops Denver Intl Newark

3:15 pm - 9:05 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 50m1 stop Newark

$380United Airlines

Wed, Mar 3 - Wed, Mar 10

7:15 am - 9:40 pmSEA Seattle/Tacoma Intl-PWM Portland

11h 25m2 stops San Diego Baltimore/Washington

12:50 pm - 10:55 pmPWM Portland-SEA Seattle/Tacoma Intl

13h 05m2 stops Baltimore/Washington Chicago Midway

$385Southwest

Tue, Jan 26 - Wed, Mar 3

5:00 pm - 8:10 amSEA Seattle/Tacoma Intl-PWM Portland

12h 10m2 stops San Diego Baltimore/Washington

12:50 pm - 11:00 pmPWM Portland-SEA Seattle/Tacoma Intl

13h 10m2 stops Baltimore/Washington Chicago Midway

$385Southwest

Wed, Mar 3 - Wed, Mar 10

7:00 am - 8:22 pmSEA Seattle/Tacoma Intl-PWM Portland

10h 22m2 stops Chicago O'Hare Intl Newark

5:08 pm - 10:56 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 48m1 stop Chicago O'Hare Intl

$400United Airlines

Sat, Oct 17 - Sat, Oct 24

10:48 pm - 10:58 amSEA Seattle/Tacoma Intl-PWM Portland

9h 10m1 stop Philadelphia

5:30 am - 12:09 pmPWM Portland-SEA Seattle/Tacoma Intl

9h 39m1 stop Philadelphia

$414American Airlines

Sat, Oct 10 - Sat, Oct 17

9:45 pm - 9:08 amSEA Seattle/Tacoma Intl-PWM Portland

56h 23m2 stops Las Vegas Harry Reid Intl Orlando

12:35 pm - 10:37 amPWM Portland-SEA Seattle/Tacoma Intl

25h 02m1 stop Minneapolis St Paul

$727Multiple Airlines

Wed, Sep 30 - Thu, Oct 8

4:27 pm - 9:19 pmSEA Seattle/Tacoma Intl-PWM Portland

25h 52m2 stops Denver Intl Columbus

12:35 pm - 10:37 amPWM Portland-SEA Seattle/Tacoma Intl

25h 02m1 stop Minneapolis St Paul

$753Multiple Airlines

Tue, Sep 29 - Thu, Oct 8

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 4:54 pmSEA Seattle/Tacoma Intl-PWM Portland

7h 39m1 stop Chicago O'Hare Intl

5:30 am - 11:40 amPWM Portland-SEA Seattle/Tacoma Intl

9h 10m1 stop Philadelphia

$569American Airlines

Wed, Sep 16 - Tue, Sep 22

10:30 pm - 9:50 amSEA Seattle/Tacoma Intl-PWM Portland

8h 20m1 stop Baltimore/Washington

2:50 pm - 11:40 pmPWM Portland-SEA Seattle/Tacoma Intl

11h 50m2 stops Baltimore/Washington Chicago Midway

$609Southwest

Wed, Sep 16 - Tue, Sep 22

7:30 pm - 9:50 amSEA Seattle/Tacoma Intl-PWM Portland

11h 20m2 stops Sacramento Intl Baltimore/Washington

2:50 pm - 11:40 pmPWM Portland-SEA Seattle/Tacoma Intl

11h 50m2 stops Baltimore/Washington Chicago Midway

$649Southwest

Wed, Sep 16 - Tue, Sep 22

8:10 am - 7:24 pmSEA Seattle/Tacoma Intl-PWM Portland

8h 14m1 stop Washington, D.C. Dulles Intl

6:00 am - 2:24 pmPWM Portland-SEA Seattle/Tacoma Intl

11h 24m2 stops Chicago O'Hare Intl San Francisco

$669United Airlines

Thu, Sep 17 - Sat, Sep 19

8:10 am - 7:24 pmSEA Seattle/Tacoma Intl-PWM Portland

8h 14m1 stop Washington, D.C. Dulles Intl

4:57 pm - 10:45 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 48m1 stop Chicago O'Hare Intl

$771United Airlines

Thu, Sep 17 - Sat, Sep 19

11:04 pm - 1:55 pmSEA Seattle/Tacoma Intl-PWM Portland

11h 51m2 stops Washington, D.C. Dulles Intl Newark

6:06 am - 4:14 pmPWM Portland-SEA Seattle/Tacoma Intl

13h 08m2 stops Newark San Francisco

$845United Airlines

Thu, Sep 17 - Sat, Sep 19

10:42 am - 9:23 pmSEA Seattle/Tacoma Intl-PWM Portland

7h 41m1 stop Chicago O'Hare Intl

9:49 am - 10:45 pmPWM Portland-SEA Seattle/Tacoma Intl

15h 56m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$1,519United Airlines

Tue, Sep 15 - Tue, Sep 22

5:00 am - 3:51 pmSEA Seattle/Tacoma Intl-PWM Portland

7h 51m1 stop Denver Intl

4:57 pm - 10:45 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 48m1 stop Chicago O'Hare Intl

$1,599United Airlines

Tue, Sep 15 - Tue, Sep 22

11:00 pm - 2:38 pmSEA Seattle/Tacoma Intl-PWM Portland

12h 38m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

9:49 am - 10:45 pmPWM Portland-SEA Seattle/Tacoma Intl

15h 56m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl

$1,630United Airlines

Tue, Sep 15 - Tue, Sep 22

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American Airlines flights from Seattle to Portland, Maine

Our best American Airlines deals on Seattle to Portland, Maine flight tickets

American Airlines

Oct 10

SEA10:48 pmSeattle/Tacoma Intl

9h 10m

1 stop

PWM10:58 amPortland

Oct 17

PWM5:30 amPortland

9h 39m

1 stop

SEA12:09 pmSeattle/Tacoma Intl

$414

American Airlines

Oct 16

SEA11:03 amSeattle/Tacoma Intl

8h 33m

1 stop

PWM10:36 pmPortland

Oct 24

PWM4:14 pmPortland

9h 56m

1 stop

SEA11:10 pmSeattle/Tacoma Intl

$415

American Airlines

Oct 10

SEA10:48 pmSeattle/Tacoma Intl

9h 10m

1 stop

PWM10:58 amPortland

Oct 17

PWM7:00 amPortland

11h 43m

2 stops

SEA3:43 pmSeattle/Tacoma Intl

$444

Southwest flights from Seattle to Portland, Maine

Our best Southwest deals on Seattle to Portland, Maine flight tickets

Southwest

Nov 24

SEA8:40 pmSeattle/Tacoma Intl

13h 05m

2 stops

PWM12:45 pmPortland

Dec 2

PWM12:45 pmPortland

13h 05m

2 stops

SEA10:50 pmSeattle/Tacoma Intl

$387

Southwest

Nov 5

SEA11:10 amSeattle/Tacoma Intl

9h 45m

2 stops

PWM11:55 pmPortland

Nov 9

PWM1:40 pmPortland

12h 25m

2 stops

SEA11:05 pmSeattle/Tacoma Intl

$412

Southwest

Nov 22

SEA12:15 amSeattle/Tacoma Intl

13h 15m

2 stops

PWM4:30 pmPortland

Dec 1

PWM12:45 pmPortland

13h 50m

2 stops

SEA11:35 pmSeattle/Tacoma Intl

$449

momondo Fare Finder

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 Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Sat 10/17

11:17 am-11:43 pm

1 stop9h 26m

Portland

Sat 10/24

6:00 am-12:18 pm

1 stop9h 18m

$375

Quickest round-trip

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Sat 10/24

6:00 am-4:02 pm

1 stop7h 02m

Portland

Sat 10/31

4:47 pm-10:05 pm

1 stop8h 18m

$375

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Wed 10/28

6:00 am-4:02 pm

1 stop7h 02m

Portland

Sat 11/7

4:47 pm-10:05 pm

1 stop8h 18m

$375

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Wed 3/3

7:10 pm-8:19 am

2 stops10h 09m

Portland

Wed 3/10

3:15 pm-9:05 pm

1 stop8h 50m

$380

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Tue 1/26

7:15 am-9:40 pm

2 stops11h 25m

Portland

Wed 3/3

12:50 pm-10:55 pm

2 stops13h 05m

$385

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Wed 3/3

5:00 pm-8:10 am

2 stops12h 10m

Portland

Wed 3/10

12:50 pm-11:00 pm

2 stops13h 10m

$385

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Sat 10/17

7:00 am-8:22 pm

2 stops10h 22m

Portland

Sat 10/24

5:08 pm-10:56 pm

1 stop8h 48m

$400

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Sat 10/10

10:48 pm-10:58 am

1 stop9h 10m

Portland

Sat 10/17

5:30 am-12:09 pm

1 stop9h 39m

$414

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Wed 9/30

9:45 pm-9:08 am

2 stops56h 23m

Portland

Thu 10/8

12:35 pm-10:37 am

1 stop25h 02m

$727

SeattlePortland

SEA Seattle/Tacoma Intl - PWM Portland

SEAPWM

Seattle/Tacoma Intl

Tue 9/29

4:27 pm-9:19 pm

2 stops25h 52m

Portland

Thu 10/8

12:35 pm-10:37 am

1 stop25h 02m

$753

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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

Prices are currently typical for flights on this route.

Typical prices usually range from $374 to $560.
The lowest price recently found on this route was $375.

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 $297, 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 March is also cheap. Prices for this month can be found on momondo for an average of $393.

How far in advance should I book a flight from Seattle 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 $509 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 $355 on momondo.

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

As of September 2026, prices for Seattle to Portland, Maine flights are approximately 2% 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

Best Price Found	$188
Fastest flight time	7h 25m
Direct flights	None

The best one-way flight to Portland, Maine from Seattle in the past 72 hours is $188. The best round-trip flight deal from Seattle to Portland, Maine found on momondo in the last 72 hours is $375.

The fastest flight from Seattle to Portland, Maine takes 7h 25m

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 25m, 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?
There are 4 operators available for flights from Seattle/Tacoma Intl Airport to Portland Airport as of September 2026.
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?
Based on momondo bookings for flights between Seattle and Portland, Maine, the leading airline is American Airlines, making up 42% of the total bookings. Other popular airlines include United Airlines with 31%, Delta with 21%, and Southwest with 6%.

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
Delta	PriceFrom $221	Free Cancellation	Rating 7.8 8,564 reviews	Search Delta flights
United Airlines	PriceFrom $266	Free Cancellation	Rating 7.4 10,213 reviews	Search United Airlines flights
American Airlines	PriceFrom $280	Free Cancellation	Rating 7.1 12,053 reviews	Search American Airlines flights
Southwest	PriceFrom $390	Free Cancellation	Rating 8.0 4,189 reviews	Search Southwest flights

North Conway

Jackson

Boothbay Harbor

Lewiston

Brunswick

Freeport

Auburn

Gorham

Conway

Bartlett

Windham

Bath

Intervale

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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Airports servicing Maine

Rockland Knox County Regional Airport

Cheap flights from Seattle to Portland from $188

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 11/25. 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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American Airlines flights from Seattle to Portland, Maine

Our best American Airlines deals on Seattle to Portland, Maine flight tickets

Southwest flights from Seattle to Portland, Maine

Our best Southwest deals on Seattle to Portland, Maine flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Portland, Maine that are best for you.

See travel insights to Portland from

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

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?

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

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

What is the cheapest airline that flies from Seattle/Tacoma Intl to Portland?

What airlines fly to Portland, Maine?

Which airport is the most popular layover for flights between Seattle and Portland, Maine?

Which layover airport offers the lowest fares from Seattle to Portland, Maine?

Which layover airport has the shortest travel time from Seattle to Portland, Maine?

Which layover airport has the shortest connection time from Seattle to Portland, Maine?

When to book flights from Seattle to Portland, Maine

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Portland?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maine

Fly your favorite airline to Portland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portland

List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Portland

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