Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland, Maine to Washington, D.C. from $138

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 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
5:00 am - 7:14 am
PWM
-
DCA
2h 14mnonstop
American Airlines Logo
10:28 am - 12:06 pm
DCA
-
PWM
1h 38mnonstop
$204American Airlines
Tue, Jan 6 - Mon, Jan 12
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
Thu, Jan 8 - Sun, Jan 11
Delta Logo
6:17 am - 1:52 pm
PWM
-
DCA
7h 35m2 stops
Delta Logo
7:30 pm - 11:22 pm
DCA
-
PWM
3h 52m1 stop
$214Delta
Thu, Jan 8 - Sun, Jan 11
American Airlines Logo
5:20 am - 7:18 am
PWM
-
DCA
1h 58mnonstop
American Airlines Logo
2:55 pm - 4:43 pm
DCA
-
PWM
1h 48mnonstop
$217American Airlines
Mon, Feb 9 - Sat, Feb 14
Delta Logo
1:13 pm - 10:57 pm
PWM
-
DCA
9h 44m2 stops
Delta Logo
6:05 am - 5:16 pm
DCA
-
PWM
11h 11m2 stops
$219Delta
Sat, Jan 17 - Tue, Jan 20
Delta Logo
5:57 pm - 11:10 pm
PWM
-
DCA
5h 13m1 stop
Delta Logo
7:00 am - 12:30 pm
DCA
-
PWM
5h 30m1 stop
$224Delta
Tue, Jan 6 - Sat, Jan 10
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
Sat, Jan 17 - Tue, Jan 20
Delta Logo
5:57 pm - 11:10 pm
PWM
-
DCA
5h 13m1 stop
Delta Logo
2:32 pm - 12:20 am
DCA
-
PWM
9h 48m2 stops
$229Delta
Tue, Jan 6 - Mon, Jan 12
Delta Logo
6:17 am - 1:52 pm
PWM
-
DCA
7h 35m2 stops
Delta Logo
3:00 pm - 11:59 pm
DCA
-
PWM
8h 59m2 stops
$234Delta
Tue, Jan 6 - Sat, Jan 10
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

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 6
PWM5:00 amPortland
2h 14m
DCA7:14 amWashington, D.C. Reagan-National
Jan 12
DCA10:28 amWashington, D.C. Reagan-National
1h 38m
PWM12:06 pmPortland
$204
Find similar
American Airlines
Feb 9
PWM5:20 amPortland
1h 58m
DCA7:18 amWashington, D.C. Reagan-National
Feb 14
DCA2:55 pmWashington, D.C. Reagan-National
1h 48m
PWM4:43 pmPortland
$217
Find similar
American Airlines
Jan 17
PWM12:46 pmPortland
1h 59m
DCA2:45 pmWashington, D.C. Reagan-National
Jan 20
DCA4:43 pmWashington, D.C. Reagan-National
6h 11m
1 stop
PWM10:54 pmPortland
$227
Find similar

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

Our best Delta deals on Portland, Maine to Washington, D.C. Reagan-National Airport flight tickets
Delta
Jan 8
PWM5:57 pmPortland
5h 13m
1 stop
DCA11:10 pmWashington, D.C. Reagan-National
Jan 11
DCA7:30 pmWashington, D.C. Reagan-National
3h 52m
1 stop
PWM11:22 pmPortland
$209
Find similar
Delta
Jan 8
PWM6:17 amPortland
7h 35m
2 stops
DCA1:52 pmWashington, D.C. Reagan-National
Jan 11
DCA7:30 pmWashington, D.C. Reagan-National
3h 52m
1 stop
PWM11:22 pmPortland
$214
Find similar
Delta
Jan 17
PWM1:13 pmPortland
9h 44m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
Jan 20
DCA6:05 amWashington, D.C. Reagan-National
11h 11m
2 stops
PWM5:16 pmPortland
$219
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 18, 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

Tue 1/6

5:00 am-7:14 am

Nonstop2h 14m

Washington, D.C. Reagan-National

Mon 1/12

10:28 am-12:06 pm

Nonstop1h 38m

$204

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

7:30 pm-11:22 pm

1 stop3h 52m

$209

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

7:30 pm-11:22 pm

1 stop3h 52m

$214

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Mon 2/9

5:20 am-7:18 am

Nonstop1h 58m

Washington, D.C. Reagan-National

Sat 2/14

2:55 pm-4:43 pm

Nonstop1h 48m

$217

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

6:05 am-5:16 pm

2 stops11h 11m

$219

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 1/6

5:57 pm-11:10 pm

1 stop5h 13m

Washington, D.C. Reagan-National

Sat 1/10

7:00 am-12:30 pm

1 stop5h 30m

$224

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Sat 1/17

12:46 pm-2:45 pm

Nonstop1h 59m

Washington, D.C. Reagan-National

Tue 1/20

4:43 pm-10:54 pm

1 stop6h 11m

$227

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 1/6

5:57 pm-11:10 pm

1 stop5h 13m

Washington, D.C. Reagan-National

Mon 1/12

2:32 pm-12:20 am

2 stops9h 48m

$229

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 1/6

6:17 am-1:52 pm

2 stops7h 35m

Washington, D.C. Reagan-National

Sat 1/10

3:00 pm-11:59 pm

2 stops8h 59m

$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

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $259. Flights from Portland, Maine to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $316. 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 $246. 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

$164

Fastest flight time

3h 55m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Portland, Maine in the past 72 hours is $164. 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 $303.
The fastest flight from Portland, Maine to Washington, D.C. Reagan-National Airport takes 3h 55m
Direct flights go from Portland, Maine to Washington, D.C. Reagan-National Airport every day.
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 3h 55m.

  • 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
9,091 reviews
Search United Airlines flights

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

    American Airlines operates around 7 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 $313, 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
Woodbridge
Waldorf
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.

An easier way to manage your Washington, D.C. Reagan-National Airport 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/17
Sat 1/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.