Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Portland from $157

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 9/30. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Portland

Cheap round-trip flights

JetBlue Logo
11:59 pm - 1:22 pmSEA-PWM
10h 23m1 stop
JetBlue Logo
2:17 pm - 10:24 pmPWM-SEA
11h 07m1 stop
$314JetBlue
Find Deal
Sun, Sep 21 - Thu, Oct 2
JetBlue Logo
11:59 pm - 1:21 pmSEA-PWM
10h 22m1 stop
JetBlue Logo
2:17 pm - 10:20 pmPWM-SEA
11h 03m1 stop
$316JetBlue
Find Deal
Mon, Sep 22 - Sat, Sep 27
American Airlines Logo
11:05 pm - 12:29 pmSEA-PWM
10h 24m1 stop
American Airlines Logo
1:57 pm - 10:29 pmPWM-SEA
11h 32m1 stop
$327American Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
American Airlines Logo
6:05 am - 8:11 pmSEA-PWM
11h 06m2 stops
American Airlines Logo
6:00 am - 11:03 amPWM-SEA
8h 03m1 stop
$332American Airlines
Find Deal
Wed, Oct 1 - Tue, Oct 7
Delta Logo
6:00 am - 4:03 pmSEA-PWM
7h 03m1 stop
Delta Logo
4:48 pm - 10:03 pmPWM-SEA
8h 15m1 stop
$337Delta
Find Deal
Wed, Oct 29 - Mon, Nov 3
Delta Logo
11:55 pm - 12:00 pmSEA-PWM
9h 05m2 stops
Delta Logo
4:48 pm - 10:03 pmPWM-SEA
8h 15m1 stop
$342Delta
Find Deal
Wed, Oct 29 - Mon, Nov 3
United Airlines Logo
10:55 pm - 9:58 amSEA-PWM
8h 03m1 stop
United Airlines Logo
6:00 am - 1:33 pmPWM-SEA
10h 33m1 stop
$360United Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
Southwest Logo
6:25 am - 10:15 pmSEA-PWM
12h 50m2 stops
Southwest Logo
5:35 am - 6:40 pmPWM-SEA
16h 05m2 stops
$373Southwest
Find Deal
Wed, Feb 4 - Mon, Feb 9
United Airlines Logo
7:00 am - 5:42 pmSEA-PWM
7h 42m1 stop
United Airlines Logo
6:14 am - 11:31 amPWM-SEA
8h 17m1 stop
$431United Airlines
Find Deal
Fri, Sep 26 - Mon, Sep 29
Southwest Logo
6:45 pm - 12:10 pmSEA-PWM
14h 25m2 stops
Southwest Logo
3:00 pm - 12:35 amPWM-SEA
12h 35m2 stops
$443Southwest
Find Deal
Sun, Nov 16 - Sun, Nov 23

JetBlue flights from Seattle to Portland, Maine

Our best JetBlue deals on Seattle to Portland, Maine flight tickets
JetBlue
Sep 21
SEA11:59 pmSeattle/Tacoma Intl
10h 23m
1 stop
PWM1:22 pmPortland
Oct 2
PWM2:17 pmPortland
11h 07m
1 stop
SEA10:24 pmSeattle/Tacoma Intl
$314
Find similar
JetBlue
Sep 22
SEA11:59 pmSeattle/Tacoma Intl
10h 22m
1 stop
PWM1:21 pmPortland
Sep 27
PWM2:17 pmPortland
11h 03m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
$316
Find similar
JetBlue
Oct 15
SEA11:56 pmSeattle/Tacoma Intl
10h 26m
1 stop
PWM1:22 pmPortland
Oct 23
PWM7:09 amPortland
18h 27m
1 stop
SEA10:36 pmSeattle/Tacoma Intl
$322
Find similar

United Airlines flights from Seattle to Portland, Maine

Our best United Airlines deals on Seattle to Portland, Maine flight tickets
United Airlines
Sep 15
SEA10:55 pmSeattle/Tacoma Intl
8h 03m
1 stop
PWM9:58 amPortland
Sep 22
PWM6:00 amPortland
10h 33m
1 stop
SEA1:33 pmSeattle/Tacoma Intl
$360
Find similar
United Airlines
Sep 26
SEA7:00 amSeattle/Tacoma Intl
7h 42m
1 stop
PWM5:42 pmPortland
Sep 29
PWM6:14 amPortland
8h 17m
1 stop
SEA11:31 amSeattle/Tacoma Intl
$431
Find similar
United Airlines
Sep 14
SEA5:02 amSeattle/Tacoma Intl
7h 48m
1 stop
PWM3:50 pmPortland
Sep 19
PWM3:35 pmPortland
10h 24m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
$437
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 August 26, 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

Sun 9/21

11:59 pm-1:22 pm

1 stop10h 23m

Portland

Thu 10/2

2:17 pm-10:24 pm

1 stop11h 07m

$314

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 9/22

11:59 pm-1:21 pm

1 stop10h 22m

Portland

Sat 9/27

2:17 pm-10:20 pm

1 stop11h 03m

$316

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Tue 9/23

11:05 pm-12:29 pm

1 stop10h 24m

Portland

Tue 9/30

1:57 pm-10:29 pm

1 stop11h 32m

$327

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 10/1

6:05 am-8:11 pm

2 stops11h 06m

Portland

Tue 10/7

6:00 am-11:03 am

1 stop8h 03m

$332

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 10/29

6:00 am-4:03 pm

1 stop7h 03m

Portland

Mon 11/3

4:48 pm-10:03 pm

1 stop8h 15m

$337

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 10/29

11:55 pm-12:00 pm

2 stops9h 05m

Portland

Mon 11/3

4:48 pm-10:03 pm

1 stop8h 15m

$342

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Mon 9/15

10:55 pm-9:58 am

1 stop8h 03m

Portland

Mon 9/22

6:00 am-1:33 pm

1 stop10h 33m

$360

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Wed 2/4

6:25 am-10:15 pm

2 stops12h 50m

Portland

Mon 2/9

5:35 am-6:40 pm

2 stops16h 05m

$373

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Fri 9/26

7:00 am-5:42 pm

1 stop7h 42m

Portland

Mon 9/29

6:14 am-11:31 am

1 stop8h 17m

$431

SeattlePortland

SEA - PWM

SEAPWM

Seattle/Tacoma Intl

Sun 11/16

6:45 pm-12:10 pm

2 stops14h 25m

Portland

Sun 11/23

3:00 pm-12:35 am

2 stops12h 35m

$443

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $402, 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 September is also cheap. Prices for this month can be found on momondo for an average of $451.

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 $545 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 12% 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 August 2025, prices for Seattle to Portland, Maine flights are approximately 14% 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.
Search flight deals

  • 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 03m, 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 $198Free CancellationRating
7.2
2,918 reviews
Search JetBlue flights
DeltaPriceFrom $244Free CancellationRating
7.9
7,979 reviews
Search Delta flights
Sun Country AirPriceFrom $296Free CancellationRating
6.9
332 reviews
Search Sun Country Air flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights
American AirlinesPriceFrom $334Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $387Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $676Free CancellationRating
8.0
10,000 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
Freeport
Lewiston
Bartlett
Gorham
Brunswick
Auburn
Intervale
Windham
Bath
Oxford
Georgetown
Tamworth
Falmouth

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 8/31
Sun 9/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States