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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 1/28. 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
3:12 pm - 9:13 pm
PWM
-
IAD
6h 01m1 stop
United Airlines Logo
12:46 pm - 2:31 pm
IAD
-
PWM
1h 45mnonstop
$199United Airlines
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
7:30 pm - 9:25 pm
PWM
-
IAD
1h 55mnonstop
United Airlines Logo
12:46 pm - 2:31 pm
IAD
-
PWM
1h 45mnonstop
$204United Airlines
Wed, Dec 31 - Wed, Jan 7
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
United Airlines Logo
3:42 pm - 9:13 pm
PWM
-
IAD
5h 31m1 stop
United Airlines Logo
12:46 pm - 2:29 pm
IAD
-
PWM
1h 43mnonstop
$208United Airlines
Sun, Jan 11 - Sat, Jan 17
Delta Logo
2:35 pm - 7:09 pm
PWM
-
IAD
4h 34m1 stop
Delta Logo
7:49 pm - 12:20 am
IAD
-
PWM
4h 31m1 stop
$209Delta
Sat, Jan 17 - Tue, Jan 20
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
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
Southwest Logo
12:45 pm - 2:30 pm
PWM
-
BWI
1h 45mnonstop
Southwest Logo
1:25 pm - 2:55 pm
BWI
-
PWM
1h 30mnonstop
$271Southwest
Tue, Jan 27 - Wed, Jan 28
Multiple Airlines Logo
11:29 am - 11:17 am
PWM
-
BWI
23h 48m2 stops
Multiple Airlines Logo
9:55 pm - 9:07 am
BWI
-
PWM
11h 12m1 stop
$277Multiple Airlines
Fri, Jan 30 - Sun, Feb 1
Southwest Logo
12:45 pm - 2:30 pm
PWM
-
BWI
1h 45mnonstop
Southwest Logo
10:40 am - 12:10 pm
BWI
-
PWM
1h 30mnonstop
$281Southwest
Mon, Jan 12 - Wed, Jan 14

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

Our best Delta deals on Portland, Maine to Washington, D.C. flight tickets
Delta
Jan 17
PWM2:35 pmPortland
4h 34m
1 stop
IAD7:09 pmWashington, D.C. Dulles Intl
Jan 20
IAD7:49 pmWashington, D.C. Dulles Intl
4h 31m
1 stop
PWM12:20 amPortland
$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
PWM6:00 amPortland
10h 46m
2 stops
IAD4:46 pmWashington, D.C. Dulles Intl
Jan 20
IAD5:26 pmWashington, D.C. Dulles Intl
6h 54m
2 stops
PWM12:20 amPortland
$219
Find similar

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
Jan 15
PWM2:31 pmPortland
1h 59m
IAD4:30 pmWashington, D.C. Dulles Intl
Jan 18
IAD12:46 pmWashington, D.C. Dulles Intl
1h 45m
PWM2:31 pmPortland
$198
Find similar
United Airlines
Jan 8
PWM3:12 pmPortland
6h 01m
1 stop
IAD9:13 pmWashington, D.C. Dulles Intl
Jan 11
IAD12:46 pmWashington, D.C. Dulles Intl
1h 45m
PWM2:31 pmPortland
$199
Find similar
United Airlines
Dec 31
PWM7:30 pmPortland
1h 55m
IAD9:25 pmWashington, D.C. Dulles Intl
Jan 10
IAD12:46 pmWashington, D.C. Dulles Intl
1h 43m
PWM2:29 pmPortland
$204
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 December 18, 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

Thu 1/8

3:12 pm-9:13 pm

1 stop6h 01m

Washington, D.C. Dulles Intl

Sun 1/11

12:46 pm-2:31 pm

Nonstop1h 45m

$199

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Wed 12/31

7:30 pm-9:25 pm

Nonstop1h 55m

Washington, D.C. Dulles Intl

Wed 1/7

12:46 pm-2:31 pm

Nonstop1h 45m

$204

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 - IAD

PWMIAD

Portland

Sun 1/11

3:42 pm-9:13 pm

1 stop5h 31m

Washington, D.C. Dulles Intl

Sat 1/17

12:46 pm-2:29 pm

Nonstop1h 43m

$208

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Sat 1/17

2:35 pm-7:09 pm

1 stop4h 34m

Washington, D.C. Dulles Intl

Tue 1/20

7:49 pm-12:20 am

1 stop4h 31m

$209

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

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

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Tue 1/27

12:45 pm-2:30 pm

Nonstop1h 45m

Baltimore/Washington

Wed 1/28

1:25 pm-2:55 pm

Nonstop1h 30m

$271

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Fri 1/30

11:29 am-11:17 am

2 stops23h 48m

Baltimore/Washington

Sun 2/1

9:55 pm-9:07 am

1 stop11h 12m

$277

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Mon 1/12

12:45 pm-2:30 pm

Nonstop1h 45m

Baltimore/Washington

Wed 1/14

10:40 am-12:10 pm

Nonstop1h 30m

$281

Flights are sorted by cheapest round-trip flights 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 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 $243.

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 $295. 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 $387.

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 $291. 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 at noon because they tend to be around $406. 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 $259 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.

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

As of December 2025, prices for Portland, Maine to Washington, D.C. flights are approximately 90% 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

$164

Fastest flight time

1h 40m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Portland, Maine in the past 72 hours is $164. The best round-trip flight deal from Portland, Maine to Washington, D.C. found on momondo in the last 72 hours is $303.
The fastest flight from Portland, Maine to Washington, D.C. takes 1h 40m
Direct flights go from Portland, Maine to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From Portland, Maine there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).
Search flight deals

  • 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
8,005 reviews
Search Delta flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $205Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
SouthwestPriceFrom $237Free CancellationRating
7.9
4,250 reviews
Search Southwest flights

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

    United Airlines operates around 6 flights from Portland, Maine to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $314, but momondo users have found United Airlines deals from Portland, Maine to Washington, D.C. from as low as $205 round-trip. United Airlines has been scored 7.4/10 in 9,091 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 $313. American Airlines operates 7 flights to Washington, D.C. from Portland, Maine in an average week. Users have rated it 7.2/10 across 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.?

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