HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
District of Columbia

$150+ Cheap flights from Portland, ME (PWM) to District of Columbia

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BWI
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to District of Columbia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to District of Columbia

Keep the following information in mind while searching for Portland to District of Columbia flight deals. Data was last updated July 29, 2025.

Round-trip from

$197
(Delta)

One-way from

$150
(United Airlines)

Popular in

February

Cheapest in

September

Average price

$323

Good round-trip deal

$263 or less

Good one-way deal

$190 or less
From Portland to District of Columbia
Search Deals
One-way flight from Portland to District of Columbia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Portland to District of Columbia.
Search Deals
Price to beat on a one-way flight from Portland to District of Columbia.
Search Deals

Find flight deals from Portland to District of Columbia

Cheapest flights from Portland to District of Columbia
Explore the most affordable flight options available from Portland to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 8/266:31 amPWM - IAD
1 stop5h 31mDelta
Tue 9/25:25 pmIAD - PWM
1 stop6h 38mDelta
Deal found 7/28$197
This Delta deal was found by Cheapflights users on 7/28. 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.
Wed 8/276:00 amPWM - DCA
1 stop5h 20mDelta
Sat 8/304:10 pmDCA - PWM
1 stop7h 53mDelta
Deal found 7/28$197
This JetBlue deal was found by Cheapflights users on 7/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/242:17 pmPWM - DCA
1 stop5h 05mJetBlue
Sun 9/285:30 pmDCA - PWM
1 stop4h 37mJetBlue
Deal found 7/29$209
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:02 pmPWM - DCA
1 stop8h 43mAmerican Airlines
Wed 9/172:54 pmDCA - PWM
Nonstop1h 40mAmerican Airlines
Deal found 7/27$211
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:01 amPWM - DCA
1 stop4h 26mUnited Airlines
Mon 8/187:01 pmDCA - PWM
1 stop4h 13mUnited Airlines
Deal found 7/27$214
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 9/107:26 pmPWM - IAD
Nonstop1h 49mUnited Airlines
Sun 9/145:50 pmIAD - PWM
1 stop5h 13mUnited Airlines
Deal found 7/28$224
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:43 pmPWM - IAD
1 stop4h 59mAmerican Airlines
Mon 9/227:21 pmIAD - PWM
2 stops17h 10mAmerican Airlines
Deal found 7/27$306

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Portland to District of Columbia that are best for you.

Fly from

Portland

Fly to

District of Columbia

Route

Depart

Return

Price

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Tue 8/26

6:31 am-12:02 pm

1 stop5h 31m

Washington, D.C. Dulles Intl

Tue 9/2

5:25 pm-12:03 am

1 stop6h 38m

$197

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 8/27

6:00 am-11:20 am

1 stop5h 20m

Washington, D.C. Reagan-National

Sat 8/30

4:10 pm-12:03 am

1 stop7h 53m

$197

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 9/24

2:17 pm-7:22 pm

1 stop5h 05m

Washington, D.C. Reagan-National

Sun 9/28

5:30 pm-10:07 pm

1 stop4h 37m

$209

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Wed 9/10

1:02 pm-9:45 pm

1 stop8h 43m

Washington, D.C. Reagan-National

Wed 9/17

2:54 pm-4:34 pm

Nonstop1h 40m

$211

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 8/14

6:01 am-10:27 am

1 stop4h 26m

Washington, D.C. Reagan-National

Mon 8/18

7:01 pm-11:14 pm

1 stop4h 13m

$214

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Wed 9/10

7:26 pm-9:15 pm

Nonstop1h 49m

Washington, D.C. Dulles Intl

Wed 9/17

8:15 am-9:58 am

Nonstop1h 43m

$217

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Thu 9/18

2:43 pm-7:42 pm

1 stop4h 59m

Washington, D.C. Dulles Intl

Mon 9/22

7:21 pm-12:31 pm

2 stops17h 10m

$306

PortlandWashington, D.C.

PWM - IAD

PWMIAD

Portland

Fri 9/12

7:26 pm-9:15 pm

Nonstop1h 49m

$150

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 8/28

11:21 am-1:11 pm

Nonstop1h 50m

$150

PortlandWashington, D.C.

PWM - DCA

PWMDCA

Portland

Thu 10/23

6:50 am-11:04 pm

1 stop16h 14m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 17 results
1
2

Best time to book a flight from Portland to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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 District of Columbia

What is the cheapest month to book a flight from Portland, Maine to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from Portland, Maine to District of Columbia (average of $241). Flying from Portland, Maine to District of Columbia 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 DC?

Find hourly flight availability from Portland to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland, Maine to District of Columbia as you normally would.

Weekly flight availability from Portland, Maine to District of Columbia

Explore weekly flight availability from Portland to District of Columbia. 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 July 29, 2025.

The most flights from PWM to USDC are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Portland to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,979 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,913 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Portland to District of Columbia. 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 District of Columbia?

    For a flight from Portland to District of Columbia, you will be flying from Portland. Portland (PWM) is just 2.9 mi from the center of the city.

  • How popular is this Portland, Maine to District of Columbia flight route?

    This flight path from Portland to District of Columbia was viewed by 43 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Portland, Maine to District of Columbia one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $150. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Portland, Maine to District of Columbia for a low price.

  • What are the cheapest flights from Portland, Maine to District of Columbia?

    The cheapest flight price from Portland, Maine to District of Columbia is $109. On average you can expect to pay $347. The most popular route, (Portland - Washington, D.C. Dulles Intl), can usually be booked for $189.

  • Can I find deals for flights from Portland to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Portland to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to District of Columbia?

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

  • Can I find deals for business class flights from Portland to District of Columbia?

    Yes. Cheapflights offers flight deals from Portland to District of Columbia 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 District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Portland, Maine to District of Columbia (average of $241). Flying from Portland, Maine to District of Columbia 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to District of Columbia

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Las Vegas flights
Boston to Seattle flights
Boston to Dallas/Fort Worth flights
Boston to Orlando flights
Boston to Los Angeles flights
Boston to O'Hare Intl flights
Boston to San Francisco flights
Boston to Denver flights
Boston to Atlanta flights
Boston to Reagan-National flights
Boston to Tampa flights
Boston to Fort Lauderdale flights
Boston to Sky Harbor Intl flights
Boston to Nashville flights
Boston to Baltimore flights
Boston to Philadelphia flights
Boston to Miami flights
Boston to Newark flights
Boston to Dulles Intl flights
Boston to Hobby flights
Boston to Raleigh flights
Boston to Honolulu flights
Boston to Midway flights
Boston to Charleston flights
Boston to Minneapolis flights
Boston to Charlotte flights
Boston to LaGuardia flights
Boston to Portland flights
Boston to George Bush Intcntl flights
Boston to San Diego flights
Boston to Salt Lake City flights
Boston to Fort Myers flights
Boston to Austin flights
Boston to New Orleans flights
Boston to Pittsburgh flights
Boston to West Palm Beach flights
Boston to Cleveland flights
Boston to John F Kennedy Intl flights
Boston to Detroit flights
Boston to Cincinnati flights
Boston to Santa Ana flights
Boston to Love Field flights
Boston to Ontario flights
Boston to Columbus flights
Boston to Indianapolis flights
Boston to Buffalo flights
Boston to Myrtle Beach flights
Boston to Milwaukee flights
Boston to Burbank flights
Boston to Norfolk flights

Top 4 airlines flying from Portland to District of Columbia

Discover the top 4 airlines that operate flights from Portland to District of Columbia. 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$396FlexibilityNo cancel feeOn-time71%
DeltaCheapest$194Average$273FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$198Average$345FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$245Average$355FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.