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Washington, D.C.

$123+ Cheap flights from Portland, ME (PWM) to Washington, D.C. (WAS)

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — WAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Washington, D.C. are usually found in September or January, booked 70 days in advance, depart on a Wednesday or Friday and return on a Saturday

Cheap flight deals from Portland to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Washington, D.C. (WAS). 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 June 12, 2025.

Round-trip from

$212
(United Airlines)

One-way from

$123
(Southwest)

Popular in

February

Cheapest in

September

Average price

$319

Good round-trip deal

$272 or less

Good one-way deal

$166 or less
From Portland to Washington, D.C. (WAS)
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One-way flight from Portland to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Portland to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Portland to Washington, D.C. (WAS).
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Find flight deals from Portland to Washington, D.C.

Cheapest flights from Portland to Washington, D.C.
Explore the most affordable flight options available from Portland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/85:35 amPWM - IAD
Nonstop1h 50mUnited Airlines
Tue 7/1510:14 pmIAD - PWM
Nonstop1h 45mUnited Airlines
Deal found 6/9$212
This United Airlines deal was found by Cheapflights users on 6/9. 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 6/278:00 amPWM - DCA
1 stop4h 25mUnited Airlines
Mon 6/305:30 pmDCA - PWM
1 stop5h 44mUnited Airlines
Deal found 6/9$214
This American Airlines deal was found by Cheapflights users on 6/11. 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 7/45:08 amPWM - DCA
Nonstop1h 51mAmerican Airlines
Sun 7/610:10 pmDCA - PWM
Nonstop1h 49mAmerican Airlines
Deal found 6/11$217
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 7/96:30 amPWM - DCA
2 stops8h 30mDelta
Sat 7/193:43 pmDCA - PWM
2 stops9h 14mDelta
Deal found 6/10$219
This Delta deal was found by Cheapflights users on 6/12. 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.
Tue 7/226:30 amPWM - IAD
1 stop5h 32mDelta
Thu 7/318:31 pmIAD - PWM
1 stop4h 26mDelta
Deal found 6/12$229
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/225:25 pmPWM - BWI
Nonstop1h 35mSouthwest
Wed 10/229:00 pmBWI - PWM
Nonstop1h 30mSouthwest
Deal found 6/12$245
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/193:53 pmPWM - BWI
1 stop5h 34mAmerican Airlines
Tue 8/2610:00 amBWI - PWM
1 stop5h 02mAmerican Airlines
Deal found 6/10$265
This Delta deal was found by Cheapflights users on 6/12. 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.
Mon 8/256:33 pmPWM - BWI
1 stop4h 44mDelta
Thu 8/286:00 amBWI - PWM
1 stop6h 08mDelta
Deal found 6/12$271
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/86:01 pmPWM - IAD
1 stop5h 57mAmerican Airlines
Tue 7/156:35 amIAD - PWM
1 stop7h 09mAmerican Airlines
Deal found 6/9$282
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:17 pmPWM - DCA
1 stop5h 04mJetBlue
Mon 10/136:25 amDCA - PWM
1 stop6h 57mJetBlue
Deal found 6/10$285
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1111:16 amPWM - BWI
1 stop24h 07mSun Country Air
Sun 7/1312:31 pmBWI - PWM
1 stop23h 04mSun Country Air
Deal found 6/10$340
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1111:16 amPWM - BWI
2 stops33h 50mMultiple Airlines
Sun 7/1312:31 pmBWI - PWM
1 stop23h 04mMultiple Airlines
Deal found 6/10$358

Cheapflights Fare Finder

Customize your flight search to find flights from Portland 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Portland to Washington, D.C. that are best for you.

Fly from

Portland

Fly to

Washington, D.C.

Route

Depart

Return

Price

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Tue 7/8

5:35 am-7:25 am

Nonstop1h 50m

Washington, D.C. Dulles Intl

Tue 7/15

10:14 pm-11:59 pm

Nonstop1h 45m

$212

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 6/27

8:00 am-12:25 pm

1 stop4h 25m

Washington, D.C. Reagan-National

Mon 6/30

5:30 pm-11:14 pm

1 stop5h 44m

$214

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 7/4

5:08 am-6:59 am

Nonstop1h 51m

Washington, D.C. Reagan-National

Sun 7/6

10:00 am-11:46 am

Nonstop1h 46m

$217

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 7/9

6:30 am-3:00 pm

2 stops8h 30m

Washington, D.C. Reagan-National

Sat 7/19

3:43 pm-12:57 am

2 stops9h 14m

$219

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Tue 7/22

6:30 am-12:02 pm

1 stop5h 32m

Washington, D.C. Dulles Intl

Sun 7/27

8:31 pm-12:57 am

1 stop4h 26m

$229

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Sat 10/4

5:50 am-7:25 am

Nonstop1h 35m

Baltimore/Washington

Mon 10/6

3:00 pm-4:30 pm

Nonstop1h 30m

$253

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Tue 8/19

3:53 pm-9:27 pm

1 stop5h 34m

Baltimore/Washington

Tue 8/26

10:00 am-3:02 pm

1 stop5h 02m

$265

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Tue 7/8

6:01 pm-11:58 pm

1 stop5h 57m

Washington, D.C. Dulles Intl

Tue 7/15

6:35 am-1:44 pm

1 stop7h 09m

$282

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 10/10

2:17 pm-7:21 pm

1 stop5h 04m

Washington, D.C. Reagan-National

Mon 10/13

6:25 am-1:22 pm

1 stop6h 57m

$285

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Tue 7/29

6:54 pm-12:54 am

1 stop6h 00m

Baltimore/Washington

Mon 8/4

4:45 pm-12:38 am

1 stop7h 53m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 33 results
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Best time to book a flight from Portland to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

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

Use this chart to determine the optimal time to book a round-trip flight from Portland to Washington, D.C.. Price data was last updated on June 9, 2025.

Booking 70 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.. 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.?

Currently, August is the cheapest month in which you can book a flight from Portland, Maine to Washington, D.C. (average of $241). Flying from Portland, Maine to Washington, D.C. in March is currently the most expensive (average of $290). 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 WAS?

Find hourly flight availability from Portland to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s optimal to fly from Portland, Maine to Washington, D.C. in the afternoon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Portland, Maine to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Portland to Washington, D.C.. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their Portland, Maine to Washington, D.C. flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland, Maine to Washington, D.C.

Explore weekly flight availability from Portland to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from PWM to WAS are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated June 12, 2025.
To help decide which airline to fly from Portland to Washington, D.C., see what other customers have to say about Southwest, Delta and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,925 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Portland to Washington, D.C.. 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.?

    For a flight from Portland to Washington, D.C., you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city. Portland is the only Portland airport and it handles 8 outbound flights to Washington, D.C. per day. 4 airlines have flights to Washington, D.C. from Portland on a regular basis.

  • How popular is this Portland, Maine to Washington, D.C. flight route?

    Flights from Portland to Washington, D.C. have been viewed 36 times in the past calendar month.

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

    According to our current data, United Airlines ($212), American Airlines ($217), and Delta ($219) offers the cheapest pricing from Portland, Maine to Washington, D.C.. United Airlines is currently priced 25% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland, Maine to Washington, D.C. one-way?

    The cheapest airlines for a one-way flight from Portland, Maine to Washington, D.C. are Southwest ($123), American Airlines ($133), and Delta ($136).

  • What are the most popular routes from Portland, Maine to Washington, D.C.?

    The most popular flight routes from Portland, Maine to Washington, D.C. are Portland - Washington, D.C. Dulles Intl, Portland - Washington, D.C. Reagan-National and Portland - Baltimore/Washington.

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

    Looking at all options, your cheapest flight can be booked for $122. While the most popular route (Portland - Washington, D.C. Dulles Intl) can be booked for $189 on average our data indicates $321 when flying from Portland, Maine to Washington, D.C..

  • Can I find deals for flights from Portland to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Portland to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Washington, D.C.?

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

  • Can I find deals for business class flights from Portland to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Portland to Washington, D.C. 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.?

    Currently, August is the cheapest month in which you can book a flight from Portland, Maine to Washington, D.C. (average of $241). Flying from Portland, Maine to Washington, D.C. in March is currently the most expensive (average of $290). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas
Dundalk

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Top 4 airlines flying from Portland to Washington, D.C.

Discover the top 4 airlines that operate flights from Portland to Washington, D.C.. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$148Average$317FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$187Average$400FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$343FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$249Average$356FlexibilityNo cancel feeOn-time63%

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