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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — WAS
Jul 5 — Jul 121
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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 Friday or Wednesday 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 30, 2025.

Round-trip from

$208
(Delta)

One-way from

$123
(Southwest)

Popular in

June

Cheapest in

September

Average price

$337

Good round-trip deal

$268 or less

Good one-way deal

$198 or less
From Portland to Washington, D.C. (WAS)
One-way flight from Portland to Washington, D.C. (WAS)
Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Portland to Washington, D.C. (WAS).
Price to beat on a one-way flight from Portland to Washington, D.C. (WAS).

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 30, 2025.

This Delta deal was found by Cheapflights users on 6/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:31 amPWM - IAD
1 stop5h 31mDelta
Thu 8/148:23 pmIAD - PWM
1 stop4h 25mDelta
Deal found 6/29$208
This American Airlines deal was found by Cheapflights users on 6/30. 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 7/295:55 amPWM - DCA
1 stop5h 37mAmerican Airlines
Tue 8/510:10 pmDCA - PWM
Nonstop1h 49mAmerican Airlines
Deal found 6/30$208
This Delta deal was found by Cheapflights users on 6/30. 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 8/226:00 amPWM - DCA
1 stop3h 47mDelta
Sat 8/308:59 amDCA - PWM
1 stop7h 23mDelta
Deal found 6/30$209
This United Airlines deal was found by Cheapflights users on 6/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/35:35 amPWM - IAD
Nonstop1h 45mUnited Airlines
Sat 8/1610:14 pmIAD - PWM
Nonstop1h 45mUnited Airlines
Deal found 6/28$213
This Trip.com deal was found by Cheapflights users on 6/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/126:01 amPWM - DCA
1 stop6h 24mUnited Airlines
Tue 8/191:00 pmDCA - PWM
1 stop5h 26mUnited Airlines
Deal found 6/27$225
This JetBlue deal was found by Cheapflights users on 6/30. 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.
Thu 10/92:17 pmPWM - DCA
1 stop5h 04mJetBlue
Sun 10/126:25 amDCA - PWM
1 stop6h 57mJetBlue
Deal found 6/30$242
This Southwest deal was found by Cheapflights users on 6/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:50 amPWM - BWI
Nonstop1h 35mSouthwest
Mon 8/119:45 pmBWI - PWM
Nonstop1h 35mSouthwest
Deal found 6/29$245
This Delta deal was found by Cheapflights users on 6/28. 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 8/215:00 pmPWM - BWI
1 stop6h 46mDelta
Mon 8/256:00 amBWI - PWM
1 stop6h 08mDelta
Deal found 6/28$255
This American Airlines deal was found by Cheapflights users on 6/28. 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.
Tue 8/193:53 pmPWM - BWI
1 stop7h 04mAmerican Airlines
Sat 8/235:38 pmBWI - PWM
1 stop5h 19mAmerican Airlines
Deal found 6/28$263
This Mytrip deal was found by Cheapflights users on 6/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/248:52 pmPWM - BWI
2 stops17h 54mMultiple Airlines
Sun 8/312:30 pmBWI - PWM
2 stops21h 10mMultiple Airlines
Deal found 6/28$436

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 30, 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

Wed 8/13

6:31 am-12:02 pm

1 stop5h 31m

Washington, D.C. Dulles Intl

Thu 8/14

8:23 pm-12:48 am

1 stop4h 25m

$208

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 7/29

5:55 am-11:32 am

1 stop5h 37m

Washington, D.C. Reagan-National

Tue 8/5

10:10 pm-11:59 pm

Nonstop1h 49m

$208

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Fri 8/22

6:31 am-10:14 am

1 stop3h 43m

Washington, D.C. Reagan-National

Mon 9/1

7:45 pm-11:25 pm

1 stop3h 40m

$209

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Sun 8/3

5:35 am-7:20 am

Nonstop1h 45m

Washington, D.C. Dulles Intl

Sat 8/16

10:14 pm-11:59 pm

Nonstop1h 45m

$213

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Tue 8/12

6:01 am-12:25 pm

1 stop6h 24m

Washington, D.C. Reagan-National

Tue 8/19

1:00 pm-6:26 pm

1 stop5h 26m

$225

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 8/7

5:50 am-7:25 am

Nonstop1h 35m

Baltimore/Washington

Mon 8/11

9:45 pm-11:20 pm

Nonstop1h 35m

$245

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Thu 8/21

5:00 pm-11:46 pm

1 stop6h 46m

Baltimore/Washington

Mon 8/25

6:00 am-12:08 pm

1 stop6h 08m

$255

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Tue 8/19

3:53 pm-10:57 pm

1 stop7h 04m

Baltimore/Washington

Sat 8/23

5:38 pm-10:57 pm

1 stop5h 19m

$263

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Sun 8/24

8:52 pm-2:46 pm

2 stops17h 54m

Baltimore/Washington

Sun 8/31

2:30 pm-11:40 am

2 stops21h 10m

$436

PortlandBaltimore

PWM - BWI

PWMBWI

Portland

Wed 8/27

9:05 am-10:35 am

Nonstop1h 30m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 24 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 27, 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 $309). Flying from Portland, Maine to Washington, D.C. in July is currently the most expensive (average of $345). 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 30, 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 15% 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 22, 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 30, 2025.

The most flights from PWM to WAS are scheduled on a Monday (11 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

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

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 30, 2025.
Read through reviews of airlines operating flights from Portland to Washington, D.C., such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Entertainment

7.6

Overall

8.0

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.

Comfort

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Entertainment

7.6

Overall

8.0

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.
8.0
Very good

Comfort

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Entertainment

7.6

Overall

8.0

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.

Comfort

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Entertainment

7.6

Overall

8.0

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.

Comfort

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Entertainment

7.6

Overall

8.0

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.

Comfort

8.0

Boarding

8.2

Food

7.0

Crew

8.6

Entertainment

7.6

Overall

8.0

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.

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

    According to our current data, Delta ($208), American Airlines ($208), and United Airlines ($213) offers the cheapest pricing from Portland, Maine to Washington, D.C.. Delta is currently priced 27% 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 ($127), and Delta ($128).

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

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Portland, Maine to Washington, D.C. on time: Avianca (97%), GoJet (91%), CommutAir (88%).

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

    Looking at all options, your cheapest flight can be booked for $149. While the most popular route (Portland - Washington, D.C. Dulles Intl) can be booked for $173 on average our data indicates $703 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 $309). Flying from Portland, Maine to Washington, D.C. in July is currently the most expensive (average of $345). 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
Woodbridge
Alexandria
Tysons
Silver Spring
Fredericksburg
Linthicum Heights
Gaithersburg
Fairfax
Easton
Towson
Waldorf
Laurel
Falls Church
Rockville
Springfield
National Harbor
Manassas
Dundalk
Bowie

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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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$148Average$294FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$189Average$400FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$355FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$249Average$357FlexibilityNo cancel feeOn-time63%

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