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Reagan-National

$171+ Cheap flights from Portland, ME (PWM) to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — DCA
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Washington, D.C. Reagan-National are usually found in September or December, booked 82 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Portland to Reagan-National

Cheapest flights from Portland to Reagan-National
Explore the most affordable flight options available from Portland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am
PWM
-
DCA
2 stops7h 55m
Delta
Fri 9/112:45 pm
DCA
-
PWM
2 stops8h 32m
Delta
Deal found 7/28$252
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:02 am
PWM
-
DCA
Nonstop1h 48m
American Airlines
Wed 8/1910:10 pm
DCA
-
PWM
Nonstop1h 37m
American Airlines
Deal found 7/26$253
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
PWM
-
DCA
1 stop4h 09m
Delta
Sat 8/225:40 pm
DCA
-
PWM
1 stop3h 53m
Delta
Deal found 7/28$258
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:02 am
PWM
-
DCA
Nonstop1h 48m
American Airlines
Sun 8/2310:10 pm
DCA
-
PWM
Nonstop1h 37m
American Airlines
Deal found 7/29$259
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:17 pm
PWM
-
DCA
Nonstop1h 57m
American Airlines
Sun 12/610:04 am
DCA
-
PWM
Nonstop1h 33m
American Airlines
Deal found 7/28$260
This American Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:00 am
PWM
-
DCA
Nonstop1h 50m
American Airlines
Wed 10/78:26 am
DCA
-
PWM
Nonstop1h 56m
American Airlines
Deal found 7/25$264
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:02 am
PWM
-
DCA
Nonstop1h 48m
American Airlines
Thu 9/1010:18 pm
DCA
-
PWM
Nonstop1h 41m
American Airlines
Deal found 7/28$266
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:45 am
PWM
-
DCA
1 stop6h 13m
United Airlines
Sat 8/221:01 pm
DCA
-
PWM
1 stop5h 28m
United Airlines
Deal found 7/29$268
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1411:50 am
PWM
-
DCA
1 stop6h 19m
Delta
Tue 8/187:40 pm
DCA
-
PWM
1 stop3h 50m
Delta
Deal found 7/28$273
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:02 am
PWM
-
DCA
Nonstop1h 48m
American Airlines
Sun 8/1610:10 pm
DCA
-
PWM
Nonstop1h 37m
American Airlines
Deal found 7/26$274

Find flight deals from Portland to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$252
(Delta)

One-way from

$171
(Delta)

Popular in

March

Cheapest in

September

Average price

$365

Good round-trip deal

$280 or less

Good one-way deal

$234 or less
Provider with most accurate pricing for Portland-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Washington, D.C. Reagan-National flights.
Search Deals
From Portland to Washington, D.C. Reagan-National
Search Deals
One-way flight from Portland to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Portland to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way flight from Portland to Washington, D.C. Reagan-National.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
Use the filters below to find and compare flights from Portland to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 9/17

4:20 pm-10:59 pm

1 stop6h 39m

Washington, D.C. Reagan-National

Wed 9/23

11:00 am-4:49 pm

1 stop5h 49m

$258

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 9/18

6:02 am-10:06 am

1 stop4h 04m

Washington, D.C. Reagan-National

Mon 9/21

2:45 pm-11:17 pm

2 stops8h 32m

$310

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Mon 8/31

6:00 am-10:09 am

1 stop4h 09m

Washington, D.C. Reagan-National

Sat 9/5

5:45 pm-9:33 pm

1 stop3h 48m

$318

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 8/12

6:00 am-1:55 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Wed 8/19

2:45 pm-12:59 am

2 stops10h 14m

$334

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 8/28

6:00 am-1:55 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Tue 9/1

2:45 pm-11:30 pm

2 stops8h 45m

$335

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 8/6

11:01 am-4:19 pm

1 stop5h 18m

Washington, D.C. Reagan-National

Sun 8/9

7:40 pm-11:30 pm

1 stop3h 50m

$339
Quickest round-trip

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 8/21

6:30 am-10:15 am

1 stop3h 45m

Washington, D.C. Reagan-National

Fri 8/21

7:40 pm-11:30 pm

1 stop3h 50m

$365

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 8/14

6:00 am-1:55 pm

2 stops7h 55m

Washington, D.C. Reagan-National

Mon 8/24

7:40 pm-11:30 pm

1 stop3h 50m

$383

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 9/10

6:02 am-2:00 pm

2 stops7h 58m

Washington, D.C. Reagan-National

Sun 9/13

2:45 pm-11:56 pm

2 stops9h 11m

$388

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Sat 8/8

4:59 pm-9:11 pm

1 stop4h 12m

Washington, D.C. Reagan-National

Mon 8/10

7:40 pm-11:30 pm

1 stop3h 50m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Portland to Reagan-National

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Reagan-National in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Washington, D.C. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Washington, D.C. Reagan-National Airport

How far ahead should I book a flight from Portland, Maine to Washington, D.C. Reagan-National Airport?

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland, Maine to Washington, D.C. Reagan-National Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Portland, Maine to Washington, D.C. Reagan-National Airport?

Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Washington, D.C. Reagan-National Airport (average of $268). Flying from Portland, Maine to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $447). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PWM to DCA?

Find hourly flight availability from Portland to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to Washington, D.C. Reagan-National Airport as you normally would.

How much does it cost to fly round-trip from Portland, Maine to Washington, D.C. Reagan-National Airport?

Airfare is below average for this route at the moment.

Portland, Maine to Washington, D.C. Reagan-National Airport flights typically cost between $258 and $425 in September.
The cheapest round-trip price found within the last 5 days was $252 on Delta (Sep 3-Sep 11).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Reagan-National. Reviews last updated July 30, 2026.
Read through reviews of airlines operating flights from Portland to Washington, D.C. Reagan-National Airport, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,046 reviews

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,046 reviews
United Airlines
7.4
Good
10,046 reviews

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,841 reviews
United Airlines
7.4
Good
10,046 reviews

Food

6.6

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Portland to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Washington, D.C. Reagan-National?

    Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Washington, D.C. Reagan-National from Portland. Booking flights from Portland (PWM) to Washington, D.C. Reagan-National should be relatively easy as there are 2 daily outbound flights to Washington, D.C. Reagan-National from 2 different airlines.

  • How long is the flight from Portland, Maine to Washington, D.C. Reagan-National Airport?

    A quick flight from Portland, Maine to Washington, D.C. Reagan-National Airport can take about 6h 39m. Delta provides one of the quickest options available for as low as $258. Airlines will cover a distance of 481 mi.

  • What are the cheapest airlines flying from Portland, Maine to Washington, D.C. Reagan-National Airport round-trip?

    Flying on American Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $189. Another option worth looking into is United Airlines, starting at $249 round trip. These flights start at 44% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Portland, Maine to Washington, D.C. Reagan-National Airport?

    Consider Republic Airways (95%), Alaska Airlines (83%) or PSA Airlines (72%) when booking your flight. These represent the most reliable airlines when flying from Portland, Maine to Washington, D.C. Reagan-National Airport.

  • What are the cheapest flights from Portland, Maine to Washington, D.C. Reagan-National Airport?

    On average you can expect to pay $348 for a flight from Portland, Maine to Washington, D.C. Reagan-National Airport. The cheapest flight overall is $168 while the most popular route, (Portland - Washington, D.C. Reagan-National) is currently priced at $217.

  • Can I find deals for flights from Portland to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Portland to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Reagan-National.

  • Can I find deals for business class flights from Portland to Reagan-National?

    Yes. Cheapflights offers flight deals from Portland to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Washington, D.C. Reagan-National Airport?

    Currently, September is the cheapest month in which you can book a flight from Portland, Maine to Washington, D.C. Reagan-National Airport (average of $268). Flying from Portland, Maine to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $447). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge
Largo
Upper Marlboro

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Top 2 airlines flying from Portland to Reagan-National

Discover the top 2 airlines that operate flights from Portland to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$336FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$249Average$395FlexibilityNo cancel feeOn-time69%

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