What is the cheapest airline that flies from Portland to Washington?

United Airlines, American Airlines, and Delta are the most popular carriers operating from Portland to Washington

What airlines fly to State of Washington?

Delta, Alaska Airlines and JetBlue are the top three most popular airlines that fly to State of Washington from Portland, Maine according to our data. Delta is the first choice among our users, with 38% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 8 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Washington?

Prices for flights from Portland Airport to Washington are updated daily.

How many operators does momondo search for flights from Portland Airport to Washington?

There are 6 operators available for flights from Portland Airport to Washington as of March 2026.

How old do you have to be to fly from Portland Airport to Washington?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Washington.

What documentation or ID do you need to fly to Washington?

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$121 Cheap Flights from Portland to Washington in 2026

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Find the cheapest flights from Portland, Maine to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:33 pm - 12:34 am

PWM

SEA

9h 01m

1 stop

7:00 am - 5:32 pm

SEA

PWM

7h 32m

1 stop

$241United Airlines

Thu, Apr 9 - Tue, Apr 14

6:33 pm - 12:34 am

PWM

SEA

9h 01m

1 stop

7:37 pm - 10:22 am

SEA

PWM

11h 45m

2 stops

$246United Airlines

Thu, Apr 9 - Mon, Apr 13

6:00 am - 11:34 am

PWM

SEA

8h 34m

1 stop

11:16 am - 12:13 am

SEA

PWM

9h 57m

1 stop

$261American Airlines

Thu, Apr 9 - Tue, Apr 14

4:43 pm - 9:50 pm

PWM

SEA

8h 07m

1 stop

11:59 pm - 3:57 pm

SEA

PWM

12h 58m

2 stops

$266Delta

Thu, Apr 23 - Mon, May 4

4:43 pm - 11:54 pm

PWM

SEA

10h 11m

2 stops

11:59 pm - 3:57 pm

SEA

PWM

12h 58m

2 stops

$271Delta

Fri, Apr 24 - Mon, May 4

6:01 pm - 12:36 am

PWM

SEA

9h 35m

1 stop

1:19 pm - 12:13 am

SEA

PWM

7h 54m

1 stop

$276American Airlines

Tue, Apr 21 - Tue, Apr 28

1:00 pm - 10:00 pm

PWM

PDX

12h 00m

2 stops

11:55 pm - 12:20 pm

PDX

PWM

9h 25m

2 stops

$388Southwest

Tue, May 5 - Mon, May 11

5:35 am - 1:35 pm

PWM

GEG

11h 00m

2 stops

5:00 am - 9:30 pm

GEG

PWM

13h 30m

2 stops

$493Southwest

Thu, Jul 2 - Tue, Jul 7

11:01 am - 11:59 pm

PWM

BLI

15h 58m

2 stops

5:18 pm - 10:27 am

BLI

PWM

14h 09m

2 stops

$863Alaska Airlines

Tue, Jul 14 - Tue, Jul 21

11:01 am - 11:59 pm

PWM

BLI

15h 58m

2 stops

5:18 pm - 10:27 am

BLI

PWM

14h 09m

2 stops

$878Alaska Airlines

Tue, Jul 7 - Wed, Jul 15

United Airlines flights from Portland, Maine to State of Washington

Our best United Airlines deals on Portland, Maine to State of Washington flight tickets

United Airlines

Apr 9

PWM6:33 pmPortland

9h 01m

1 stop

SEA12:34 amSeattle/Tacoma Intl

Apr 14

SEA7:00 amSeattle/Tacoma Intl

7h 32m

1 stop

PWM5:32 pmPortland

$241

United Airlines

Apr 9

PWM6:33 pmPortland

9h 01m

1 stop

SEA12:34 amSeattle/Tacoma Intl

Apr 13

SEA7:37 pmSeattle/Tacoma Intl

11h 45m

2 stops

PWM10:22 amPortland

$246

United Airlines

May 1

PWM4:50 pmPortland

10h 09m

1 stop

SEA11:59 pmSeattle/Tacoma Intl

May 7

SEA10:41 pmSeattle/Tacoma Intl

8h 37m

1 stop

PWM10:18 amPortland

$309

Southwest flights from Portland, Maine to State of Washington

Our best Southwest deals on Portland, Maine to State of Washington flight tickets

Southwest

Aug 25

PWM5:45 amPortland

12h 15m

2 stops

SEA3:00 pmSeattle/Tacoma Intl

Sep 1

SEA11:05 pmSeattle/Tacoma Intl

10h 20m

2 stops

PWM12:25 pmPortland

$328

Southwest

Apr 9

PWM2:50 pmPortland

12h 15m

2 stops

SEA12:05 amSeattle/Tacoma Intl

Apr 14

SEA11:45 pmSeattle/Tacoma Intl

12h 35m

2 stops

PWM3:20 pmPortland

$330

Southwest

May 8

PWM2:50 pmPortland

13h 05m

2 stops

SEA12:55 amSeattle/Tacoma Intl

May 12

SEA9:20 amSeattle/Tacoma Intl

10h 15m

2 stops

PWM10:35 pmPortland

$354

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Thu 4/9

6:33 pm-12:34 am

1 stop9h 01m

Seattle/Tacoma Intl

Tue 4/14

7:00 am-5:32 pm

1 stop7h 32m

$241

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Thu 4/9

6:33 pm-12:34 am

1 stop9h 01m

Seattle/Tacoma Intl

Mon 4/13

7:37 pm-10:22 am

2 stops11h 45m

$246

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Thu 4/9

6:00 am-11:34 am

1 stop8h 34m

Seattle/Tacoma Intl

Tue 4/14

11:16 am-12:13 am

1 stop9h 57m

$261

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Thu 4/23

4:43 pm-9:50 pm

1 stop8h 07m

Seattle/Tacoma Intl

Mon 5/4

11:59 pm-3:57 pm

2 stops12h 58m

$266

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Fri 4/24

4:43 pm-11:54 pm

2 stops10h 11m

Seattle/Tacoma Intl

Mon 5/4

11:59 pm-3:57 pm

2 stops12h 58m

$271

PortlandSeattle

PWM - SEA

PWMSEA

Portland

Tue 4/21

6:01 pm-12:36 am

1 stop9h 35m

Seattle/Tacoma Intl

Tue 4/28

1:19 pm-12:13 am

1 stop7h 54m

$276

PortlandPortland

PWM - PDX

PWMPDX

Portland

Tue 5/5

1:00 pm-10:00 pm

2 stops12h 00m

Portland

Mon 5/11

11:55 pm-12:20 pm

2 stops9h 25m

$388

PortlandSpokane

PWM - GEG

PWMGEG

Portland

Thu 7/2

5:35 am-1:35 pm

2 stops11h 00m

Spokane

Tue 7/7

5:00 am-9:30 pm

2 stops13h 30m

$493

PortlandBellingham

PWM - BLI

PWMBLI

Portland

Tue 7/14

11:01 am-11:59 pm

2 stops15h 58m

Bellingham

Tue 7/21

5:18 pm-10:27 am

2 stops14h 09m

$863

PortlandBellingham

PWM - BLI

PWMBLI

Portland

Tue 7/7

11:01 am-11:59 pm

2 stops15h 58m

Bellingham

Wed 7/15

5:18 pm-10:27 am

2 stops14h 09m

$878

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 Portland, Maine to State of Washington

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

What is the cheapest month to fly to State of Washington?

The month of November is, on average, the cheapest month to fly to State of Washington from Portland, Maine, with most prices found around $375. If you aren’t able to travel to State of Washington during the month of November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $377.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $467 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Portland, Maine for as low as $328 on momondo.

Can stopping save me money on Portland, Maine to State of Washington flights?

You could potentially save up to 25% on your flight if you consider stops on a Portland, Maine to State of Washington flight.

Cheap Portland, Maine to State of Washington flight deals and tips

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

Fastest flight time	7h 45m
Direct flights	None

The fastest flight from Portland, Maine to State of Washington takes 7h 45m

There are no direct flights from Portland, Maine to State of Washington. There are no popular flight routes from Portland, Maine to State of Washington.

Search flight deals

When did momondo last update prices for flights from Portland Airport to Washington?
Prices for flights from Portland Airport to Washington are updated daily.
How many operators does momondo search for flights from Portland Airport to Washington?
There are 6 operators available for flights from Portland Airport to Washington as of March 2026.
How old do you have to be to fly from Portland Airport to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Portland, Maine to State of Washington

Compare and see reviews for airlines that fly from Portland, Maine to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $155	Free Cancellation	Rating 7.9 8,242 reviews	Search Delta flights
JetBlue	PriceFrom $207	Free Cancellation	Rating 7.2 2,895 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $242	Free Cancellation	Rating 6.8 340 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $275	Free Cancellation	Rating 7.4 9,380 reviews	Search United Airlines flights
American Airlines	PriceFrom $294	Free Cancellation	Rating 7.1 11,376 reviews	Search American Airlines flights
Southwest	PriceFrom $380	Free Cancellation	Rating 8.0 4,304 reviews	Search Southwest flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Washington. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Washington from Portland which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Portland to Washington flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Washington from Portland. 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.