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Cheap flights from Portland, Maine to Washington, D.C. from $79

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 8/21. 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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0 bags

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Find the cheapest flights from Portland, Maine to Washington, D.C.

Cheap round-trip flights

American Airlines Logo
2:10 pm - 3:59 pmPWM-DCA
1h 49mnonstop
American Airlines Logo
10:11 pm - 11:48 pmDCA-PWM
1h 37mnonstop
$157American Airlines
Find Deal
Thu, Oct 9 - Sun, Oct 12
American Airlines Logo
2:10 pm - 3:59 pmPWM-DCA
1h 49mnonstop
American Airlines Logo
10:11 pm - 11:48 pmDCA-PWM
1h 37mnonstop
$173American Airlines
Find Deal
Thu, Oct 9 - Sun, Oct 12
United Airlines Logo
6:01 am - 10:27 amPWM-DCA
4h 26m1 stop
United Airlines Logo
6:00 am - 9:24 amDCA-PWM
3h 24m1 stop
$177United Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 20
Delta Logo
6:00 am - 3:00 pmPWM-DCA
9h 00m2 stops
Delta Logo
7:45 pm - 11:25 pmDCA-PWM
3h 40m1 stop
$182Delta
Find Deal
Wed, Aug 13 - Wed, Aug 20
Southwest Logo
1:15 pm - 8:55 pmPWM-DCA
7h 40m1 stop
Southwest Logo
11:55 am - 5:05 pmDCA-PWM
5h 10m1 stop
$186Southwest
Find Deal
Sat, Aug 30 - Mon, Sep 1
Delta Logo
6:00 am - 2:59 pmPWM-DCA
8h 59m2 stops
Delta Logo
10:00 am - 5:48 pmDCA-PWM
7h 48m2 stops
$187Delta
Find Deal
Wed, Sep 3 - Sat, Sep 6
United Airlines Logo
6:01 am - 12:25 pmPWM-DCA
6h 24m1 stop
United Airlines Logo
4:14 pm - 11:14 pmDCA-PWM
7h 00m1 stop
$221United Airlines
Find Deal
Tue, Aug 12 - Thu, Aug 14
Southwest Logo
1:15 pm - 8:55 pmPWM-DCA
7h 40m1 stop
Southwest Logo
11:55 am - 5:05 pmDCA-PWM
5h 10m1 stop
$224Southwest
Find Deal
Sat, Aug 30 - Fri, Sep 5
JetBlue Logo
2:19 pm - 10:58 pmPWM-DCA
8h 39m1 stop
JetBlue Logo
6:30 am - 1:23 pmDCA-PWM
6h 53m1 stop
$232JetBlue
Find Deal
Tue, Jul 29 - Wed, Aug 6
JetBlue Logo
2:17 pm - 7:21 pmPWM-DCA
5h 04m1 stop
JetBlue Logo
6:25 am - 1:22 pmDCA-PWM
6h 57m1 stop
$242JetBlue
Find Deal
Thu, Oct 9 - Sun, Oct 12

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

Our best JetBlue deals on Portland, Maine to Washington, D.C. Reagan-National Airport flight tickets
JetBlue
Jul 29
PWM2:19 pmPortland
8h 39m
1 stop
DCA10:58 pmWashington, D.C. Reagan-National
Aug 6
DCA6:30 amWashington, D.C. Reagan-National
6h 53m
1 stop
PWM1:23 pmPortland
JetBlue
Oct 9
PWM2:17 pmPortland
5h 04m
1 stop
DCA7:21 pmWashington, D.C. Reagan-National
Oct 12
DCA6:25 amWashington, D.C. Reagan-National
6h 57m
1 stop
PWM1:22 pmPortland

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
Oct 9
PWM2:10 pmPortland
1h 49m
DCA3:59 pmWashington, D.C. Reagan-National
Oct 12
DCA10:11 pmWashington, D.C. Reagan-National
1h 37m
PWM11:48 pmPortland
American Airlines
Oct 9
PWM2:10 pmPortland
1h 49m
DCA3:59 pmWashington, D.C. Reagan-National
Oct 12
DCA10:11 pmWashington, D.C. Reagan-National
1h 37m
PWM11:48 pmPortland
American Airlines
Sep 30
PWM6:01 amPortland
12h 26m
1 stop
DCA6:27 pmWashington, D.C. Reagan-National
Sep 30
DCA10:11 pmWashington, D.C. Reagan-National
1h 41m
PWM11:52 pmPortland

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 $254. 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 $269.

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 Friday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Friday will often find tickets for as low as $345. Flights from Portland, Maine to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $452. 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 $357. 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 $371.

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 $316 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 $199 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 July 2025, prices for Portland, Maine to Washington, D.C. Reagan-National Airport flights are approximately 2% cheaper 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

$79

Fastest flight time

1h 44m

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 $79. 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 $157.
The fastest flight from Portland, Maine to Washington, D.C. Reagan-National Airport takes 1h 44m
Direct flights go from Portland, Maine to Washington, D.C. Reagan-National Airport every day.

  • 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 44m.

  • 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
DeltaPriceFrom $148Free CancellationRating
8.0
7,962 reviews
Search Delta flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
8,844 reviews
Search United Airlines flights
  • American Airlines Flights From Portland, Maine to Washington, D.C. Reagan-National Airport

    American Airlines operates around 18 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 $305, 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 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
Arlington
National Harbor
Laurel
Woodbridge
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Gaithersburg
Rockville
Towson
Fairfax
Colonial Beach
Glen Burnie
Linthicum Heights
Reston
Springfield

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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1 adult
Sun 7/13
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