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Cheap flights from Portland, Maine to District of Columbia from $149

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 District of Columbia departing on 11/4. 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 District of Columbia

Cheap round-trip flights

United Airlines Logo
7:25 pm - 9:15 pmPWM-IAD
1h 50mnonstop
United Airlines Logo
10:09 pm - 11:59 pmIAD-PWM
1h 50mnonstop
$189United Airlines
Find Deal
Fri, Oct 17 - Sun, Oct 19
American Airlines Logo
6:00 am - 7:44 amPWM-DCA
1h 44mnonstop
American Airlines Logo
10:00 am - 11:46 amDCA-PWM
1h 46mnonstop
$189American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
American Airlines Logo
12:34 pm - 2:24 pmPWM-DCA
1h 50mnonstop
American Airlines Logo
10:11 pm - 11:51 pmDCA-PWM
1h 40mnonstop
$190American Airlines
Find Deal
Thu, Oct 23 - Sun, Oct 26
United Airlines Logo
7:25 pm - 9:15 pmPWM-IAD
1h 50mnonstop
United Airlines Logo
10:09 pm - 11:59 pmIAD-PWM
1h 50mnonstop
$194United Airlines
Find Deal
Wed, Oct 1 - Mon, Oct 13
American Airlines Logo
2:02 pm - 3:59 pmPWM-DCA
1h 57mnonstop
American Airlines Logo
10:11 pm - 11:51 pmDCA-PWM
1h 40mnonstop
$194American Airlines
Find Deal
Wed, Oct 1 - Mon, Oct 13
United Airlines Logo
5:45 am - 7:34 amPWM-IAD
1h 49mnonstop
United Airlines Logo
10:09 pm - 11:59 pmIAD-PWM
1h 50mnonstop
$199United Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
Delta Logo
4:48 pm - 11:00 pmPWM-IAD
6h 12m1 stop
Delta Logo
7:59 pm - 12:05 amIAD-PWM
4h 06m1 stop
$209Delta
Find Deal
Thu, Oct 30 - Mon, Nov 3
Delta Logo
5:00 pm - 10:51 pmPWM-DCA
5h 51m1 stop
Delta Logo
5:00 pm - 12:05 amDCA-PWM
7h 05m1 stop
$209Delta
Find Deal
Fri, Oct 31 - Sat, Nov 1
JetBlue Logo
2:17 pm - 7:20 pmPWM-DCA
5h 03m1 stop
JetBlue Logo
6:25 am - 1:22 pmDCA-PWM
6h 57m1 stop
$243JetBlue
Find Deal
Fri, Oct 3 - Sun, Oct 5
JetBlue Logo
2:17 pm - 7:22 pmPWM-DCA
5h 05m1 stop
JetBlue Logo
5:20 pm - 11:04 pmDCA-PWM
5h 44m1 stop
$250JetBlue
Find Deal
Tue, Oct 7 - Tue, Oct 14

United Airlines flights from Portland, Maine to District of Columbia

Our best United Airlines deals on Portland, Maine to District of Columbia flight tickets
United Airlines
Oct 17
PWM7:25 pmPortland
1h 50m
IAD9:15 pmWashington, D.C. Dulles Intl
Oct 19
IAD10:09 pmWashington, D.C. Dulles Intl
1h 50m
PWM11:59 pmPortland
$189
Find similar
United Airlines
Oct 1
PWM7:25 pmPortland
1h 50m
IAD9:15 pmWashington, D.C. Dulles Intl
Oct 13
IAD10:09 pmWashington, D.C. Dulles Intl
1h 50m
PWM11:59 pmPortland
$194
Find similar
United Airlines
Oct 3
PWM5:45 amPortland
1h 49m
IAD7:34 amWashington, D.C. Dulles Intl
Oct 5
IAD10:09 pmWashington, D.C. Dulles Intl
1h 50m
PWM11:59 pmPortland
$199
Find similar

Delta flights from Portland, Maine to District of Columbia

Our best Delta deals on Portland, Maine to District of Columbia flight tickets
Delta
Oct 30
PWM4:48 pmPortland
6h 12m
1 stop
IAD11:00 pmWashington, D.C. Dulles Intl
Nov 3
IAD7:59 pmWashington, D.C. Dulles Intl
4h 06m
1 stop
PWM12:05 amPortland
$209
Find similar
Delta
Oct 1
PWM2:41 pmPortland
4h 56m
1 stop
IAD7:37 pmWashington, D.C. Dulles Intl
Oct 13
IAD7:59 pmWashington, D.C. Dulles Intl
4h 06m
1 stop
PWM12:05 amPortland
$214
Find similar
Delta
Sep 30
PWM2:41 pmPortland
4h 56m
1 stop
IAD7:37 pmWashington, D.C. Dulles Intl
Oct 4
IAD8:17 pmWashington, D.C. Dulles Intl
4h 17m
1 stop
PWM12:34 amPortland
$219
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portland, Maine to District of Columbia 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 September 17, 2025.
Use the filters below to find and compare flights from Portland, Maine to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Fri 10/17

7:25 pm-9:15 pm

Nonstop1h 50m

Washington, D.C. Dulles Intl

Sun 10/19

10:09 pm-11:59 pm

Nonstop1h 50m

$189

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 10/31

6:00 am-7:44 am

Nonstop1h 44m

Washington, D.C. Reagan-National

Sun 11/2

10:00 am-11:46 am

Nonstop1h 46m

$189

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 10/23

12:34 pm-2:24 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

Sun 10/26

10:11 pm-11:51 pm

Nonstop1h 40m

$190

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Wed 10/1

7:25 pm-9:15 pm

Nonstop1h 50m

Washington, D.C. Dulles Intl

Mon 10/13

10:09 pm-11:59 pm

Nonstop1h 50m

$194

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 10/1

2:02 pm-3:59 pm

Nonstop1h 57m

Washington, D.C. Reagan-National

Mon 10/13

10:11 pm-11:51 pm

Nonstop1h 40m

$194

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Fri 10/3

5:45 am-7:34 am

Nonstop1h 49m

Washington, D.C. Dulles Intl

Sun 10/5

10:09 pm-11:59 pm

Nonstop1h 50m

$199

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Thu 10/30

4:48 pm-11:00 pm

1 stop6h 12m

Washington, D.C. Dulles Intl

Mon 11/3

7:59 pm-12:05 am

1 stop4h 06m

$209

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 10/31

5:00 pm-10:51 pm

1 stop5h 51m

Washington, D.C. Reagan-National

Sat 11/1

5:00 pm-12:05 am

1 stop7h 05m

$209

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 10/3

2:17 pm-7:20 pm

1 stop5h 03m

Washington, D.C. Reagan-National

Sun 10/5

6:25 am-1:22 pm

1 stop6h 57m

$243

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 10/7

2:17 pm-7:22 pm

1 stop5h 05m

Washington, D.C. Reagan-National

Tue 10/14

5:20 pm-11:04 pm

1 stop5h 44m

$250

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 District of Columbia from

How to get the cheapest flight ticket from Portland, Maine to District of Columbia

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 District of Columbia?

In general, January is the cheapest month to fly from Portland, Maine to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $244. If you don’t want to visit District of Columbia in January, then you should wait until September to fly from Portland, Maine, when ticket prices are also cheap, with an average price of $249.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Friday when prices can be found for as low as $366. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Portland, Maine because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $508.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from Portland, Maine in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $386 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly in the evening, with an average ticket price of $442. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Portland to District of Columbia flight route?

Fly from Portland to Baltimore/Washington for the best Portland - District of Columbia flight prices

How far in advance should I book a flight to District of Columbia?

You are more likely to see cheaper flights to District of Columbia from Portland, Maine when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Portland, Maine for as low as $250 on momondo.

What cabin class options are available on Portland to District of Columbia flights?

There are 4 cabin classes available to choose from on Portland to District of Columbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Portland, Maine to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to District of Columbia

Best Price Found

$180

Fastest flight time

1h 44m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from Portland, Maine in the past 72 hours is $180. The best round-trip flight deal from Portland, Maine to District of Columbia found on momondo in the last 72 hours is $260.
The fastest flight from Portland, Maine to District of Columbia takes 1h 44m
Direct flights go from Portland, Maine to District of Columbia every day.
There are 2 airports near District of Columbia: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • When did momondo last update prices for flights from Portland Airport to District of Columbia?

    Prices for flights from Portland Airport to District of Columbia are updated daily.

  • How many operators does momondo search for flights from Portland Airport to District of Columbia?

  • How old do you have to be to fly from Portland Airport to District of Columbia?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The required travel and health documents for your District of Columbia 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 District of Columbia. 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 District of Columbia?

Best airlines flying from Portland, Maine to District of Columbia

Compare and see reviews for airlines that fly from Portland, Maine to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $176Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $242Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to District of Columbia?

Finding the right flight to District of Columbia from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to District of Columbia quick and easy, saving you time and money.

Can I find flights from Portland to District of Columbia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to District of Columbia from Portland with this policy.

How can momondo help me find flights from Portland to District of Columbia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to District of Columbia from Portland.

I’m not ready to book a flight from Portland to District of Columbia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to District of Columbia 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 District of Columbia trip

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