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Cheap flights from Portland, Maine to Washington, D.C. from $119

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to Washington, D.C. departing on 10/29. 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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Find the cheapest flights from Portland, Maine to Washington, D.C.

Cheap round-trip flights

United Airlines Logo
7:25 pm - 9:15 pmPWM-IAD
1h 50mnonstop
United Airlines Logo
10:09 pm - 11:59 pmIAD-PWM
1h 50mnonstop
$189United Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19
American Airlines Logo
6:00 am - 7:44 amPWM-DCA
1h 44mnonstop
American Airlines Logo
10:00 am - 11:46 amDCA-PWM
1h 46mnonstop
$189American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
American Airlines Logo
12:34 pm - 2:24 pmPWM-DCA
1h 50mnonstop
American Airlines Logo
10:11 pm - 11:51 pmDCA-PWM
1h 40mnonstop
$190American Airlines
Find Deal
Thu, Oct 23 - Sun, Oct 26
United Airlines Logo
7:25 pm - 9:15 pmPWM-IAD
1h 50mnonstop
United Airlines Logo
10:09 pm - 11:59 pmIAD-PWM
1h 50mnonstop
$194United Airlines
Find Deal
Wed, Oct 1 - Mon, Oct 13
Delta Logo
4:48 pm - 11:00 pmPWM-IAD
6h 12m1 stop
Delta Logo
7:59 pm - 12:05 amIAD-PWM
4h 06m1 stop
$209Delta
Find Deal
Thu, Oct 30 - Sun, Nov 2
Delta Logo
5:00 pm - 10:51 pmPWM-DCA
5h 51m1 stop
Delta Logo
5:00 pm - 12:05 amDCA-PWM
7h 05m1 stop
$209Delta
Find Deal
Fri, Oct 31 - Sat, Nov 1
JetBlue Logo
2:17 pm - 7:20 pmPWM-DCA
5h 03m1 stop
JetBlue Logo
6:25 am - 1:22 pmDCA-PWM
6h 57m1 stop
$243JetBlue
Find Deal
Fri, Oct 3 - Sun, Oct 5
Southwest Logo
5:45 am - 7:20 amPWM-BWI
1h 35mnonstop
Southwest Logo
1:25 pm - 2:55 pmBWI-PWM
1h 30mnonstop
$246Southwest
Find Deal
Thu, Oct 23 - Tue, Nov 4
JetBlue Logo
2:17 pm - 7:22 pmPWM-DCA
5h 05m1 stop
JetBlue Logo
5:20 pm - 11:04 pmDCA-PWM
5h 44m1 stop
$250JetBlue
Find Deal
Tue, Oct 7 - Tue, Oct 14
Southwest Logo
5:45 am - 7:20 amPWM-BWI
1h 35mnonstop
Southwest Logo
8:20 am - 9:55 amBWI-PWM
1h 35mnonstop
$255Southwest
Find Deal
Wed, Oct 22 - Sat, Oct 25

Delta flights from Portland, Maine to Washington, D.C.

Our best Delta deals on Portland, Maine to Washington, D.C. flight tickets
Delta
Oct 30
PWM4:48 pmPortland
6h 12m
1 stop
IAD11:00 pmWashington, D.C. Dulles Intl
Nov 2
IAD7:59 pmWashington, D.C. Dulles Intl
4h 06m
1 stop
PWM12:05 amPortland
$209
Find similar
Delta
Oct 1
PWM2:41 pmPortland
4h 56m
1 stop
IAD7:37 pmWashington, D.C. Dulles Intl
Oct 13
IAD7:59 pmWashington, D.C. Dulles Intl
4h 06m
1 stop
PWM12:05 amPortland
$214
Find similar
Delta
Sep 30
PWM2:41 pmPortland
4h 56m
1 stop
IAD7:37 pmWashington, D.C. Dulles Intl
Oct 4
IAD8:17 pmWashington, D.C. Dulles Intl
4h 17m
1 stop
PWM12:34 amPortland
$219
Find similar

United Airlines flights from Portland, Maine to Washington, D.C.

Our best United Airlines deals on Portland, Maine to Washington, D.C. flight tickets
United Airlines
Oct 17
PWM7:25 pmPortland
1h 50m
IAD9:15 pmWashington, D.C. Dulles Intl
Oct 19
IAD10:09 pmWashington, D.C. Dulles Intl
1h 50m
PWM11:59 pmPortland
$189
Find similar
United Airlines
Oct 1
PWM7:25 pmPortland
1h 50m
IAD9:15 pmWashington, D.C. Dulles Intl
Oct 13
IAD10:09 pmWashington, D.C. Dulles Intl
1h 50m
PWM11:59 pmPortland
$194
Find similar
United Airlines
Oct 3
PWM5:45 amPortland
1h 49m
IAD7:34 amWashington, D.C. Dulles Intl
Oct 5
IAD10:09 pmWashington, D.C. Dulles Intl
1h 50m
PWM11:59 pmPortland
$199
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Washington, D.C. 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 September 17, 2025.
Use the filters below to find and compare flights from Portland, Maine to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Fri 10/17

7:25 pm-9:15 pm

Nonstop1h 50m

Washington, D.C. Dulles Intl

Sun 10/19

10:09 pm-11:59 pm

Nonstop1h 50m

$189

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 10/31

6:00 am-7:44 am

Nonstop1h 44m

Washington, D.C. Reagan-National

Sun 11/2

10:00 am-11:46 am

Nonstop1h 46m

$189

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 10/23

12:34 pm-2:24 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

Sun 10/26

10:11 pm-11:51 pm

Nonstop1h 40m

$190

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Wed 10/1

7:25 pm-9:15 pm

Nonstop1h 50m

Washington, D.C. Dulles Intl

Mon 10/13

10:09 pm-11:59 pm

Nonstop1h 50m

$194

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Thu 10/30

4:48 pm-11:00 pm

1 stop6h 12m

Washington, D.C. Dulles Intl

Sun 11/2

7:59 pm-12:05 am

1 stop4h 06m

$209

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 10/31

5:00 pm-10:51 pm

1 stop5h 51m

Washington, D.C. Reagan-National

Sat 11/1

5:00 pm-12:05 am

1 stop7h 05m

$209

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 10/3

2:17 pm-7:20 pm

1 stop5h 03m

Washington, D.C. Reagan-National

Sun 10/5

6:25 am-1:22 pm

1 stop6h 57m

$243

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 10/23

5:45 am-7:20 am

Nonstop1h 35m

Baltimore/Washington

Tue 11/4

1:25 pm-2:55 pm

Nonstop1h 30m

$246

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 10/7

2:17 pm-7:22 pm

1 stop5h 05m

Washington, D.C. Reagan-National

Tue 10/14

5:20 pm-11:04 pm

1 stop5h 44m

$250

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Wed 10/22

5:45 am-7:20 am

Nonstop1h 35m

Baltimore/Washington

Sat 10/25

8:20 am-9:55 am

Nonstop1h 35m

$255

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 Washington, D.C. from

How to get the cheapest flight ticket from Portland, Maine to Washington, D.C.

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 Washington, D.C.?

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Portland, Maine, with most prices found around $244. If you’re not able to fly to Washington, D.C. in January, then September is your next best option. Flight prices from Portland, Maine to Washington, D.C. during September average around $249.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Portland, Maine is on a Friday. momondo users have found tickets for Friday departures for as low as $366. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Portland, Maine to Washington, D.C. for around $508.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Portland, Maine to Washington, D.C. when you can find flight prices for as low as $386. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $442. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Portland to Washington, D.C. flight route?

Fly from Portland to Baltimore/Washington for the best Portland - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Portland, Maine for as low as $250 on momondo.

What cabin class options are available on Portland to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Portland to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland, Maine to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between Portland, Maine to Washington, D.C..

How have Portland, Maine to Washington, D.C. flight prices changed over time?

As of September 2025, prices for Portland, Maine to Washington, D.C. flights are approximately 24% more expensive when compared to flights at the same time last year.

When to book flights from Portland, Maine to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland, Maine to Washington, D.C. (PWM to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Washington, D.C.

Best Price Found

$178

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Portland, Maine in the past 72 hours is $178. The best round-trip flight deal from Portland, Maine to Washington, D.C. found on momondo in the last 72 hours is $260.
The fastest flight from Portland, Maine to Washington, D.C. takes 1h 35m
Direct flights go from Portland, Maine to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • How far is Portland to Washington, D.C. by plane?

    The distance between Portland and Washington, D.C. is about 480.9 mi. Typically, this will take 1h 35m by plane in normal conditions.

  • When did momondo last update prices for flights from Portland Airport to Washington, D.C.?

    Prices for flights from Portland Airport to Washington, D.C. refresh daily.

  • How many operators does momondo search for flights from Portland Airport to Washington, D.C.?

  • How old do you have to be to fly from Portland Airport to Washington, D.C.?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Portland, Maine to Washington, D.C.?

  • What is the most popular airline from Portland, Maine to Washington, D.C.?

Best airlines flying from Portland, Maine to Washington, D.C.

Compare and see reviews for airlines that fly from Portland, Maine to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $176Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $242Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

  • United Airlines Flights From Portland, Maine to Washington, D.C.

    United Airlines operates around 25 flights from Portland, Maine to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $316, but momondo users have found United Airlines deals from Portland, Maine to Washington, D.C. from as low as $199 round-trip. United Airlines has been scored 7.4/10 in 8,926 reviews.

  • American Airlines Flights From Portland, Maine to Washington, D.C.

    American Airlines is also a popular choice for this route. American Airlines flight deals for Portland, Maine to Washington, D.C. start from as low as $189 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $312. American Airlines operates 24 flights to Washington, D.C. from Portland, Maine in an average week. Users have rated it 7.2/10 across 10,000 reviews.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg
Springfield
Linthicum Heights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Portland.

Can I find flights from Portland to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Portland with this policy.

How can momondo help me find flights from Portland to Washington, D.C.?

Once all potential Portland to Washington, D.C. 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 Portland to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Washington, D.C. 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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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport