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Cheap flights from Portland, Maine to Washington, D.C. from $112

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 12/15. 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

Enter your travel dates to find the best prices.
United Airlines Logo
3:20 pm - 9:25 pmPWM-IAD
6h 05m1 stop
United Airlines Logo
12:35 pm - 2:19 pmIAD-PWM
1h 44mnonstop
$199United Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 17
United Airlines Logo
7:22 pm - 9:18 pmPWM-IAD
1h 56mnonstop
United Airlines Logo
8:20 am - 10:04 amIAD-PWM
1h 44mnonstop
$204United Airlines
Find Deal
Fri, Nov 21 - Mon, Nov 24
American Airlines Logo
5:43 am - 7:38 amPWM-DCA
1h 55mnonstop
American Airlines Logo
10:07 pm - 11:41 pmDCA-PWM
1h 34mnonstop
$204American Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
Delta Logo
4:53 pm - 11:08 pmPWM-DCA
6h 15m1 stop
Delta Logo
5:02 pm - 11:59 pmDCA-PWM
6h 57m1 stop
$209Delta
Find Deal
Thu, Dec 4 - Sat, Dec 6
Delta Logo
6:15 am - 11:39 amPWM-IAD
5h 24m1 stop
Delta Logo
11:06 am - 8:51 pmIAD-PWM
9h 45m2 stops
$214Delta
Find Deal
Thu, Dec 4 - Sat, Dec 6
American Airlines Logo
5:20 pm - 7:14 pmPWM-DCA
1h 54mnonstop
American Airlines Logo
5:15 pm - 6:59 pmDCA-PWM
1h 44mnonstop
$217American Airlines
Find Deal
Fri, Dec 19 - Wed, Dec 24
Southwest Logo
3:30 pm - 5:15 pmPWM-BWI
1h 45mnonstop
Southwest Logo
8:45 pm - 10:15 pmBWI-PWM
1h 30mnonstop
$261Southwest
Find Deal
Wed, Dec 3 - Wed, Dec 10
Southwest Logo
3:15 pm - 5:10 pmPWM-BWI
1h 55mnonstop
Southwest Logo
8:45 pm - 10:15 pmBWI-PWM
1h 30mnonstop
$281Southwest
Find Deal
Sat, Dec 6 - Mon, Dec 8
Multiple Airlines Logo
11:16 am - 7:51 pmPWM-IAD
8h 35m1 stop
Multiple Airlines Logo
8:36 pm - 9:06 amIAD-PWM
12h 30m1 stop
$285Multiple Airlines
Find Deal
Sat, Nov 15 - Sun, Nov 16
Multiple Airlines Logo
11:16 am - 9:15 pmPWM-BWI
9h 59m1 stop
Multiple Airlines Logo
7:30 am - 9:06 amBWI-PWM
25h 36m1 stop
$297Multiple Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23

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
Dec 3
PWM3:20 pmPortland
6h 05m
1 stop
IAD9:25 pmWashington, D.C. Dulles Intl
Dec 17
IAD12:35 pmWashington, D.C. Dulles Intl
1h 44m
PWM2:19 pmPortland
$199
Find similar
United Airlines
Nov 21
PWM7:22 pmPortland
1h 56m
IAD9:18 pmWashington, D.C. Dulles Intl
Nov 24
IAD8:20 amWashington, D.C. Dulles Intl
1h 44m
PWM10:04 amPortland
$204
Find similar
United Airlines
Dec 3
PWM3:20 pmPortland
6h 05m
1 stop
IAD9:25 pmWashington, D.C. Dulles Intl
Dec 17
IAD5:19 pmWashington, D.C. Dulles Intl
5h 50m
1 stop
PWM11:09 pmPortland
$209
Find similar

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

Our best Delta deals on Portland, Maine to Washington, D.C. flight tickets
Delta
Dec 4
PWM4:53 pmPortland
6h 15m
1 stop
DCA11:08 pmWashington, D.C. Reagan-National
Dec 6
DCA5:02 pmWashington, D.C. Reagan-National
6h 57m
1 stop
PWM11:59 pmPortland
$209
Find similar
Delta
Dec 4
PWM6:15 amPortland
5h 24m
1 stop
IAD11:39 amWashington, D.C. Dulles Intl
Dec 6
IAD11:06 amWashington, D.C. Dulles Intl
9h 45m
2 stops
PWM8:51 pmPortland
$214
Find similar
Delta
Dec 4
PWM6:15 amPortland
8h 11m
2 stops
DCA2:26 pmWashington, D.C. Reagan-National
Dec 6
DCA9:40 amWashington, D.C. Reagan-National
11h 11m
2 stops
PWM8:51 pmPortland
$219
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 November 3, 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

Wed 12/3

3:20 pm-9:25 pm

1 stop6h 05m

Washington, D.C. Dulles Intl

Wed 12/17

12:35 pm-2:19 pm

Nonstop1h 44m

$199

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Fri 11/21

7:22 pm-9:18 pm

Nonstop1h 56m

Washington, D.C. Dulles Intl

Mon 11/24

8:20 am-10:04 am

Nonstop1h 44m

$204

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 11/19

5:43 am-7:38 am

Nonstop1h 55m

Washington, D.C. Reagan-National

Wed 11/26

10:07 pm-11:41 pm

Nonstop1h 34m

$204

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 12/4

4:53 pm-11:08 pm

1 stop6h 15m

Washington, D.C. Reagan-National

Sat 12/6

5:02 pm-11:59 pm

1 stop6h 57m

$209

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Thu 12/4

6:15 am-11:39 am

1 stop5h 24m

Washington, D.C. Dulles Intl

Sat 12/6

11:06 am-8:51 pm

2 stops9h 45m

$214

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 12/19

5:20 pm-7:14 pm

Nonstop1h 54m

Washington, D.C. Reagan-National

Wed 12/24

5:15 pm-6:59 pm

Nonstop1h 44m

$217

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Wed 12/3

3:30 pm-5:15 pm

Nonstop1h 45m

Baltimore/Washington

Wed 12/10

8:45 pm-10:15 pm

Nonstop1h 30m

$261

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Sat 12/6

3:15 pm-5:10 pm

Nonstop1h 55m

Baltimore/Washington

Mon 12/8

8:45 pm-10:15 pm

Nonstop1h 30m

$281

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Sat 11/15

11:16 am-7:51 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Sun 11/16

8:36 pm-9:06 am

1 stop12h 30m

$285

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Wed 11/19

11:16 am-9:15 pm

1 stop9h 59m

Baltimore/Washington

Sun 11/23

7:30 am-9:06 am

1 stop25h 36m

$297

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 typical price of a round-trip flight between Portland, Maine and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Portland, Maine, with most prices found around $237. If you’re not able to fly to Washington, D.C. in September, then January is your next best option. Flight prices from Portland, Maine to Washington, D.C. during January average around $245.

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 $363. 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 $507.

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 $383. 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 $445. 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 Washington, D.C. Reagan-National 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 $322 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 November 2025, prices for Portland, Maine to Washington, D.C. flights are approximately 19% 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

$163

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 $163. The best round-trip flight deal from Portland, Maine to Washington, D.C. found on momondo in the last 72 hours is $279.
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)
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  • 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 40m 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
8,002 reviews
Search Delta flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $194Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
SouthwestPriceFrom $238Free CancellationRating
8.0
4,238 reviews
Search Southwest flights

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

    United Airlines operates around 24 flights from Portland, Maine to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $299, but momondo users have found United Airlines deals from Portland, Maine to Washington, D.C. from as low as $194 round-trip. United Airlines has been scored 7.4/10 in 8,997 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 $314. American Airlines operates 18 flights to Washington, D.C. from Portland, Maine in an average week. Users have rated it 7.2/10 across 11,038 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
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Glen Burnie
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