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Cheap flights from Portland, Maine to Washington, D.C. from $131

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 1/20. 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.
American Airlines Logo
12:46 pm - 2:45 pm
PWM
-
DCA
1h 59mnonstop
American Airlines Logo
10:28 am - 12:06 pm
DCA
-
PWM
1h 38mnonstop
$204American Airlines
Thu, Jan 8 - Sun, Jan 11
Delta Logo
5:57 pm - 11:10 pm
PWM
-
DCA
5h 13m1 stop
Delta Logo
7:30 pm - 11:22 pm
DCA
-
PWM
3h 52m1 stop
$209Delta
Tue, Jan 20 - Tue, Jan 27
Delta Logo
5:57 pm - 11:10 pm
PWM
-
DCA
5h 13m1 stop
Delta Logo
12:55 pm - 11:22 pm
DCA
-
PWM
10h 27m2 stops
$214Delta
Tue, Jan 20 - Tue, Jan 27
Delta Logo
1:13 pm - 10:57 pm
PWM
-
DCA
9h 44m2 stops
Delta Logo
2:32 pm - 11:22 pm
DCA
-
PWM
8h 50m2 stops
$219Delta
Sat, Jan 17 - Tue, Jan 20
Delta Logo
5:57 pm - 11:10 pm
PWM
-
DCA
5h 13m1 stop
Delta Logo
5:10 pm - 11:22 pm
DCA
-
PWM
6h 12m1 stop
$224Delta
Thu, Jan 8 - Sun, Jan 11
American Airlines Logo
12:46 pm - 2:45 pm
PWM
-
DCA
1h 59mnonstop
American Airlines Logo
4:43 pm - 10:54 pm
DCA
-
PWM
6h 11m1 stop
$227American Airlines
Tue, Jan 20 - Tue, Jan 27
Delta Logo
6:17 am - 1:52 pm
PWM
-
DCA
7h 35m2 stops
Delta Logo
5:10 pm - 11:22 pm
DCA
-
PWM
6h 12m1 stop
$229Delta
Thu, Jan 8 - Sun, Jan 11
Delta Logo
6:16 am - 1:52 pm
PWM
-
DCA
7h 36m2 stops
Delta Logo
2:32 pm - 12:26 am
DCA
-
PWM
9h 54m2 stops
$234Delta
Fri, Jan 9 - Tue, Jan 13
American Airlines Logo
7:06 am - 6:02 pm
PWM
-
DCA
10h 56m1 stop
American Airlines Logo
2:54 pm - 4:36 pm
DCA
-
PWM
1h 42mnonstop
$237American Airlines
Thu, Apr 30 - Mon, May 4
Delta Logo
5:57 pm - 11:10 pm
PWM
-
DCA
5h 13m1 stop
Delta Logo
5:10 pm - 11:22 pm
DCA
-
PWM
6h 12m1 stop
$239Delta
Wed, Jan 7 - Sun, Jan 11

United Airlines flights from Portland, Maine to Washington, D.C. Reagan-National Airport

Our best United Airlines deals on Portland, Maine to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Jan 17
PWM3:05 pmPortland
6h 47m
1 stop
DCA9:52 pmWashington, D.C. Reagan-National
Jan 20
DCA9:07 amWashington, D.C. Reagan-National
4h 49m
1 stop
PWM1:56 pmPortland
$269
Find similar
United Airlines
Apr 30
PWM6:00 amPortland
4h 29m
1 stop
DCA10:29 amWashington, D.C. Reagan-National
May 4
DCA5:00 pmWashington, D.C. Reagan-National
6h 29m
1 stop
PWM11:29 pmPortland
$284
Find similar
United Airlines
Jan 12
PWM6:00 amPortland
4h 33m
1 stop
DCA10:33 amWashington, D.C. Reagan-National
Jan 14
DCA10:15 amWashington, D.C. Reagan-National
3h 41m
1 stop
PWM1:56 pmPortland
$291
Find similar

American Airlines flights from Portland, Maine to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Portland, Maine to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Jan 8
PWM12:46 pmPortland
1h 59m
DCA2:45 pmWashington, D.C. Reagan-National
Jan 11
DCA10:28 amWashington, D.C. Reagan-National
1h 38m
PWM12:06 pmPortland
$204
Find similar
American Airlines
Jan 20
PWM12:46 pmPortland
1h 59m
DCA2:45 pmWashington, D.C. Reagan-National
Jan 27
DCA4:43 pmWashington, D.C. Reagan-National
6h 11m
1 stop
PWM10:54 pmPortland
$227
Find similar
American Airlines
Apr 30
PWM7:06 amPortland
10h 56m
1 stop
DCA6:02 pmWashington, D.C. Reagan-National
May 4
DCA2:54 pmWashington, D.C. Reagan-National
1h 42m
PWM4:36 pmPortland
$237
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to Washington, D.C. Reagan-National Airport 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 December 23, 2025.
Use the filters below to find and compare flights from Portland, Maine to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 1/8

12:46 pm-2:45 pm

Nonstop1h 59m

Washington, D.C. Reagan-National

Sun 1/11

10:28 am-12:06 pm

Nonstop1h 38m

$204

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 1/20

5:57 pm-11:10 pm

1 stop5h 13m

Washington, D.C. Reagan-National

Tue 1/27

7:30 pm-11:22 pm

1 stop3h 52m

$209

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 1/20

5:57 pm-11:10 pm

1 stop5h 13m

Washington, D.C. Reagan-National

Tue 1/27

12:55 pm-11:22 pm

2 stops10h 27m

$214

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Sat 1/17

1:13 pm-10:57 pm

2 stops9h 44m

Washington, D.C. Reagan-National

Tue 1/20

2:32 pm-11:22 pm

2 stops8h 50m

$219

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 1/8

5:57 pm-11:10 pm

1 stop5h 13m

Washington, D.C. Reagan-National

Sun 1/11

5:10 pm-11:22 pm

1 stop6h 12m

$224

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 1/20

12:46 pm-2:45 pm

Nonstop1h 59m

Washington, D.C. Reagan-National

Tue 1/27

4:43 pm-10:54 pm

1 stop6h 11m

$227

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 1/8

6:17 am-1:52 pm

2 stops7h 35m

Washington, D.C. Reagan-National

Sun 1/11

5:10 pm-11:22 pm

1 stop6h 12m

$229

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 1/9

6:16 am-1:52 pm

2 stops7h 36m

Washington, D.C. Reagan-National

Tue 1/13

2:32 pm-12:26 am

2 stops9h 54m

$234

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 4/30

7:06 am-6:02 pm

1 stop10h 56m

Washington, D.C. Reagan-National

Mon 5/4

2:54 pm-4:36 pm

Nonstop1h 42m

$237

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 1/7

5:57 pm-11:10 pm

1 stop5h 13m

Washington, D.C. Reagan-National

Sun 1/11

5:10 pm-11:22 pm

1 stop6h 12m

$239

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. Reagan-National Airport

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. Reagan-National Airport?

The month of September is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Portland, Maine, with most prices found around $258. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $281.

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

The cheapest day to depart from Portland, Maine to Washington, D.C. Reagan-National Airport is on a Saturday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Saturday will often find tickets for as low as $260. Flights from Portland, Maine to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $314. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Portland, Maine to Washington, D.C. Reagan-National Airport flights are usually those with departure times at noon. Our users have found flights to Washington, D.C. Reagan-National Airport at noon for as low as $245. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the afternoon when prices are around $291.

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

Fly from Portland to Washington, D.C. Reagan-National for the best Portland - Washington, D.C. Reagan-National flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $317 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Portland, Maine for as low as $194 on momondo.

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

There are 3 cabin classes available to choose from on Portland to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of December 2025, prices for Portland, Maine to Washington, D.C. Reagan-National Airport flights are approximately 46% more expensive when compared to flights at the same time last year.

When to book flights from Portland, Maine to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport (PWM to DCA) flight deals and tips

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

Best Price Found

$159

Fastest flight time

1h 54m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat
The best one-way flight to Washington, D.C. Reagan-National Airport from Portland, Maine in the past 72 hours is $159. The best round-trip flight deal from Portland, Maine to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $290.
The fastest flight from Portland, Maine to Washington, D.C. Reagan-National Airport takes 1h 54m
Direct flights go from Portland, Maine to Washington, D.C. Reagan-National Airport on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.
Search flight deals

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

    There are 483.6 mi between Portland and Washington, D.C. Reagan-National. In terms of flight time, this usually takes a little over 1h 54m.

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

    Prices for flights from Portland Airport to Washington, D.C. Reagan-National Airport are updated daily.

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

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

    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, D.C. Reagan-National Airport.

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

    The required travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Portland, Maine to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Portland, Maine to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $189Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights

  • American Airlines Flights From Portland, Maine to Washington, D.C. Reagan-National Airport

    American Airlines operates around 14 flights from Portland, Maine to Washington, D.C. Reagan-National Airport every week. The average price of these flights found in the last 72 hours has been $311, but momondo users have found American Airlines deals from Portland, Maine to Washington, D.C. Reagan-National Airport from as low as $189 round-trip. American Airlines has been scored 7.2/10 in 11,054 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
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to Washington, D.C.. momondo saves you time and could save you money on your trip.

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.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Washington, D.C..

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

If you are not ready to book a flight from Portland to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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