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

Delta, Southwest, and American Airlines 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 39% 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 5 operators available for flights from Portland Airport to Washington as of August 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.

$123 Cheap Flights from Portland, Maine to Washington in 2026

Discover deals from 900+ travel sites with momondo.

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.

4:30 pm - 11:10 pmPWM Portland-SEA Seattle/Tacoma Intl

9h 40m1 stop Charlotte Douglas

10:31 am - 11:40 pmSEA Seattle/Tacoma Intl-PWM Portland

10h 09m1 stop Chicago O'Hare Intl

$245American Airlines

Wed, Oct 21 - Wed, Oct 28

4:40 pm - 10:05 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 25m1 stop Detroit Metropolitan Wayne County

6:00 am - 3:58 pmSEA Seattle/Tacoma Intl-PWM Portland

6h 58m1 stop Detroit Metropolitan Wayne County

$245Delta

Wed, Nov 11 - Tue, Nov 17

2:32 pm - 8:37 pmPWM Portland-SEA Seattle/Tacoma Intl

9h 05m1 stop Washington, D.C. Dulles Intl

7:04 pm - 9:00 amSEA Seattle/Tacoma Intl-PWM Portland

10h 56m2 stops Denver Intl Newark

$250United Airlines

Wed, Oct 21 - Wed, Oct 28

11:40 am - 10:05 pmPWM Portland-SEA Seattle/Tacoma Intl

13h 25m2 stops New York LaGuardia Detroit Metropolitan Wayne County

11:59 pm - 1:03 pmSEA Seattle/Tacoma Intl-PWM Portland

10h 04m1 stop Atlanta Hartsfield-Jackson

$250Delta

Wed, Nov 11 - Tue, Nov 17

2:03 pm - 9:36 pmPWM Portland-SEA Seattle/Tacoma Intl

10h 33m1 stop Chicago O'Hare Intl

10:45 pm - 10:03 amSEA Seattle/Tacoma Intl-PWM Portland

8h 18m1 stop Philadelphia

$271American Airlines

Thu, Sep 24 - Sat, Oct 3

12:45 pm - 11:30 pmPWM Portland-SEA Seattle/Tacoma Intl

13h 45m2 stops Baltimore/Washington Chicago Midway

6:30 pm - 9:50 amSEA Seattle/Tacoma Intl-PWM Portland

12h 20m2 stops San Diego Baltimore/Washington

$282Southwest

Wed, Dec 2 - Mon, Dec 7

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

8h 48m1 stop Chicago O'Hare Intl

7:35 pm - 10:07 amSEA Seattle/Tacoma Intl-PWM Portland

11h 32m2 stops San Francisco Washington, D.C. Dulles Intl

$302United Airlines

Thu, Oct 22 - Mon, Oct 26

3:25 pm - 12:35 amPWM Portland-SEA Seattle/Tacoma Intl

12h 10m2 stops Baltimore/Washington Chicago Midway

12:10 am - 3:30 pmSEA Seattle/Tacoma Intl-PWM Portland

12h 20m2 stops Chicago Midway Baltimore/Washington

$323Southwest

Fri, Oct 23 - Tue, Oct 27

12:35 pm - 12:14 amPWM Portland-PSC Pasco Tri Cities

14h 39m2 stops Philadelphia Seattle/Tacoma Intl

7:00 am - 11:40 pmPSC Pasco Tri Cities-PWM Portland

13h 40m2 stops Los Angeles Washington, D.C. Reagan-National

$605Alaska Airlines

Sat, Jan 9 - Wed, Jan 13

12:46 pm - 12:14 amPWM Portland-PSC Pasco Tri Cities

14h 28m2 stops Washington, D.C. Reagan-National Seattle/Tacoma Intl

7:00 am - 11:40 pmPSC Pasco Tri Cities-PWM Portland

13h 40m2 stops Los Angeles Washington, D.C. Reagan-National

$605Alaska Airlines

Sat, Jan 9 - Wed, Jan 13

Cheap last minute flights

Enter your travel dates to find the best prices.

6:09 pm - 11:59 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 50m1 stop Chicago O'Hare Intl

9:58 pm - 10:31 amSEA Seattle/Tacoma Intl-PWM Portland

9h 33m1 stop Philadelphia

$549American Airlines

Wed, Aug 19 - Tue, Aug 25

5:30 am - 11:50 amPWM Portland-SEA Seattle/Tacoma Intl

9h 20m1 stop Philadelphia

8:10 am - 9:21 pmSEA Seattle/Tacoma Intl-PWM Portland

10h 11m1 stop Philadelphia

$549American Airlines

Wed, Aug 19 - Wed, Aug 26

2:53 pm - 11:20 pmPWM Portland-SEA Seattle/Tacoma Intl

11h 27m1 stop New York John F Kennedy Intl

7:15 am - 11:13 pmSEA Seattle/Tacoma Intl-PWM Portland

12h 58m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$554Delta

Wed, Aug 19 - Wed, Aug 26

2:53 pm - 11:20 pmPWM Portland-SEA Seattle/Tacoma Intl

11h 27m1 stop New York John F Kennedy Intl

5:30 am - 11:13 pmSEA Seattle/Tacoma Intl-PWM Portland

14h 43m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$554Delta

Wed, Aug 19 - Tue, Aug 25

2:50 pm - 11:35 pmPWM Portland-SEA Seattle/Tacoma Intl

11h 45m2 stops Baltimore/Washington Chicago Midway

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

11h 20m2 stops Sacramento Intl Baltimore/Washington

$584Southwest

Wed, Aug 19 - Wed, Aug 26

12:47 pm - 11:21 amPWM Portland-PDX Portland

25h 34m1 stop Minneapolis St Paul

6:35 pm - 11:41 amPDX Portland-PWM Portland

14h 06m1 stop Minneapolis St Paul

$595Sun Country Air

Thu, Aug 20 - Sat, Aug 22

12:47 pm - 11:21 amPWM Portland-PDX Portland

25h 34m1 stop Minneapolis St Paul

8:30 am - 11:46 amPDX Portland-PWM Portland

24h 16m1 stop Minneapolis St Paul

$605Sun Country Air

Thu, Aug 20 - Sun, Aug 23

5:03 pm - 10:43 pmPWM Portland-SEA Seattle/Tacoma Intl

8h 40m1 stop Chicago O'Hare Intl

7:11 am - 9:23 pmSEA Seattle/Tacoma Intl-PWM Portland

11h 12m2 stops San Francisco Chicago O'Hare Intl

$619United Airlines

Thu, Aug 20 - Tue, Aug 25

10:30 am - 5:35 pmPWM Portland-SEA Seattle/Tacoma Intl

10h 05m2 stops Baltimore/Washington Denver Intl

10:30 pm - 9:55 amSEA Seattle/Tacoma Intl-PWM Portland

8h 25m1 stop Baltimore/Washington

$619Southwest

Thu, Aug 20 - Tue, Aug 25

6:00 am - 11:32 amPWM Portland-SEA Seattle/Tacoma Intl

8h 32m1 stop Chicago O'Hare Intl

7:00 am - 5:42 pmSEA Seattle/Tacoma Intl-PWM Portland

7h 42m1 stop Chicago O'Hare Intl

$640United Airlines

Tue, Aug 18 - Thu, Aug 20

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American Airlines flights from Portland, Maine to State of Washington

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

American Airlines

Oct 21

PWM4:30 pmPortland

9h 40m

1 stop

SEA11:10 pmSeattle/Tacoma Intl

Oct 28

SEA10:31 amSeattle/Tacoma Intl

10h 09m

1 stop

PWM11:40 pmPortland

$245

American Airlines

Sep 24

PWM2:03 pmPortland

10h 33m

1 stop

SEA9:36 pmSeattle/Tacoma Intl

Oct 3

SEA10:45 pmSeattle/Tacoma Intl

8h 18m

1 stop

PWM10:03 amPortland

$271

American Airlines

Oct 2

PWM5:30 amPortland

9h 10m

1 stop

SEA11:40 amSeattle/Tacoma Intl

Oct 5

SEA12:49 pmSeattle/Tacoma Intl

7h 47m

1 stop

PWM11:36 pmPortland

$278

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

Oct 21

PWM2:32 pmPortland

9h 05m

1 stop

SEA8:37 pmSeattle/Tacoma Intl

Oct 28

SEA7:04 pmSeattle/Tacoma Intl

10h 56m

2 stops

PWM9:00 amPortland

$250

United Airlines

Oct 22

PWM6:00 amPortland

8h 33m

1 stop

PDX11:33 amPortland

Oct 22

PDX11:30 pmPortland

8h 10m

1 stop

PWM10:40 amPortland

$331

United Airlines

Sep 9

PWM4:57 pmPortland

8h 55m

1 stop

PDX10:52 pmPortland

Sep 16

PDX5:30 amPortland

10h 54m

2 stops

PWM7:24 pmPortland

$338

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

Cheapest round-trip

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Wed 10/21

4:30 pm-11:10 pm

1 stop9h 40m

Seattle/Tacoma Intl

Wed 10/28

10:31 am-11:40 pm

1 stop10h 09m

$245

Quickest round-trip

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Wed 11/11

4:40 pm-10:05 pm

1 stop8h 25m

Seattle/Tacoma Intl

Tue 11/17

6:00 am-3:58 pm

1 stop6h 58m

$245

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Wed 10/21

2:32 pm-8:37 pm

1 stop9h 05m

Seattle/Tacoma Intl

Wed 10/28

7:04 pm-9:00 am

2 stops10h 56m

$250

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Wed 11/11

11:40 am-10:05 pm

2 stops13h 25m

Seattle/Tacoma Intl

Tue 11/17

11:59 pm-1:03 pm

1 stop10h 04m

$250

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Thu 9/24

2:03 pm-9:36 pm

1 stop10h 33m

Seattle/Tacoma Intl

Sat 10/3

10:45 pm-10:03 am

1 stop8h 18m

$271

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Wed 12/2

12:45 pm-11:30 pm

2 stops13h 45m

Seattle/Tacoma Intl

Mon 12/7

6:30 pm-9:50 am

2 stops12h 20m

$282

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Thu 10/22

5:08 pm-10:56 pm

1 stop8h 48m

Seattle/Tacoma Intl

Mon 10/26

7:35 pm-10:07 am

2 stops11h 32m

$302

PortlandSeattle

PWM Portland - SEA Seattle/Tacoma Intl

PWMSEA

Portland

Fri 10/23

3:25 pm-12:35 am

2 stops12h 10m

Seattle/Tacoma Intl

Tue 10/27

12:10 am-3:30 pm

2 stops12h 20m

$323

PortlandPasco

PWM Portland - PSC Pasco Tri Cities

PWMPSC

Portland

Sat 1/9

12:35 pm-12:14 am

2 stops14h 39m

Pasco Tri Cities

Wed 1/13

7:00 am-11:40 pm

2 stops13h 40m

$605

PortlandPasco

PWM Portland - PSC Pasco Tri Cities

PWMPSC

Portland

Sat 1/9

12:46 pm-12:14 am

2 stops14h 28m

Pasco Tri Cities

Wed 1/13

7:00 am-11:40 pm

2 stops13h 40m

$605

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 April 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 from Portland, Maine to 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 $468 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 $325 on momondo.

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

You could potentially save up to 11% 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	8h 18m
Direct flights	None

The fastest flight from Portland, Maine to State of Washington takes 8h 18m

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

Frequently asked questions about flying from Portland, Maine to Washington

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 5 operators available for flights from Portland Airport to Washington as of August 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 7.8 8,508 reviews	Search Delta flights
JetBlue	PriceFrom $207	Free Cancellation	Rating 7.1 3,038 reviews	Search JetBlue flights
American Airlines	PriceFrom $285	Free Cancellation	Rating 7.1 11,941 reviews	Search American Airlines flights
United Airlines	PriceFrom $296	Free Cancellation	Rating 7.4 10,111 reviews	Search United Airlines flights
Southwest	PriceFrom $405	Free Cancellation	Rating 8.0 4,219 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.