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Washington, D.C.

$74+ Cheap flights from Boston (BOS) 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — WAS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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1. Tell us where you want to go

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3. Compare prices and book

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Cheapflights Tip: The best prices from Boston Logan Intl to Washington, D.C. are usually found in January or February, booked 74 days in advance, depart on a Friday or Thursday and return on a Thursday

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

Cheapest flights from Boston to Washington, D.C.
Explore the most affordable flight options available from Boston to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Super.com deal was found by Cheapflights users on 12/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 pmBOS - DCA
Nonstop1h 50mJetBlue
Sat 1/109:00 amDCA - BOS
Nonstop1h 34mJetBlue
Deal found 12/17$164
This JetBlue deal was found by Cheapflights users on 12/17. 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 12/317:00 pmBOS - DCA
Nonstop1h 50mJetBlue
Wed 1/710:05 amDCA - BOS
Nonstop1h 34mJetBlue
Deal found 12/17$167
This JetBlue deal was found by Cheapflights users on 12/15. 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 12/317:00 pmBOS - DCA
Nonstop1h 50mJetBlue
Mon 1/56:55 pmDCA - BOS
Nonstop1h 37mJetBlue
Deal found 12/15$177
This Super.com deal was found by Cheapflights users on 12/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:05 pmBOS - DCA
Nonstop1h 53mJetBlue
Fri 1/28:51 pmDCA - BOS
Nonstop1h 35mJetBlue
Deal found 12/17$184
This JetBlue deal was found by Cheapflights users on 12/15. 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 12/317:00 pmBOS - DCA
Nonstop1h 50mJetBlue
Thu 1/16:55 pmDCA - BOS
Nonstop1h 37mJetBlue
Deal found 12/15$187
This Trip.com deal was found by Cheapflights users on 12/16. 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 12/302:00 pmBOS - DCA
Nonstop1h 49mJetBlue
Tue 1/66:55 pmDCA - BOS
Nonstop1h 34mJetBlue
Deal found 12/16$192
This Super.com deal was found by Cheapflights users on 12/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:00 pmBOS - DCA
Nonstop1h 50mJetBlue
Wed 12/314:45 pmDCA - BOS
Nonstop1h 38mJetBlue
Deal found 12/14$193
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/317:44 pmBOS - IAD
Nonstop1h 46mUnited Airlines
Thu 1/110:17 pmIAD - BOS
Nonstop1h 37mUnited Airlines
Deal found 12/17$197
This JetBlue deal was found by Cheapflights users on 12/14. 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 12/242:00 pmBOS - DCA
Nonstop1h 49mJetBlue
Thu 1/18:51 pmDCA - BOS
Nonstop1h 35mJetBlue
Deal found 12/14$197
This JetBlue deal was found by Cheapflights users on 12/15. 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 12/317:00 pmBOS - DCA
Nonstop1h 50mJetBlue
Tue 1/66:00 amDCA - BOS
1 stop5h 14mJetBlue
Deal found 12/15$202
This Trip.com deal was found by Cheapflights users on 12/14. 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.
Wed 12/318:45 amBOS - DCA
Nonstop1h 50mJetBlue
Wed 12/316:15 pmDCA - BOS
Nonstop1h 35mJetBlue
Deal found 12/14$204
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/257:32 pmBOS - IAD
1 stop3h 34mUnited Airlines
Tue 1/68:29 amIAD - BOS
1 stop4h 44mUnited Airlines
Deal found 12/16$207

Find flight deals from Boston to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$145
(Super.com)

One-way from

$74
(United Airlines)

Popular in

November

Cheapest in

January

Average price

$197

Good round-trip deal

$169 or less

Good one-way deal

$97 or less
Provider with most accurate pricing for Boston Logan Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Washington, D.C. (WAS) flights.
Search Deals
From Boston Logan Intl to Washington, D.C. (WAS)
Search Deals
One-way flight from Boston Logan Intl to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 December 18, 2025.
Use the filters below to find and compare flights from Boston to Washington, D.C. that are best for you.

Fly from

Boston

Fly to

Washington, D.C.

Route

Depart

Return

Price

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Tue 1/27

7:07 pm-8:53 pm

Nonstop1h 46m

Washington, D.C. Dulles Intl

Sun 2/1

10:12 pm-11:49 pm

Nonstop1h 37m

$157

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Sat 2/7

11:55 am-1:53 pm

Nonstop1h 58m

Washington, D.C. Reagan-National

Sun 2/8

10:25 am-12:06 pm

Nonstop1h 41m

$157

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Thu 1/8

8:00 am-9:51 am

Nonstop1h 51m

Washington, D.C. Reagan-National

Sat 1/10

3:25 pm-5:00 pm

Nonstop1h 35m

$157

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Sat 1/10

11:55 am-1:53 pm

Nonstop1h 58m

Washington, D.C. Reagan-National

Sun 1/11

6:55 pm-8:37 pm

Nonstop1h 42m

$157

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Mon 1/19

9:20 am-11:09 am

Nonstop1h 49m

Washington, D.C. Reagan-National

Wed 1/21

7:00 am-8:32 am

Nonstop1h 32m

$157

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Sat 1/17

3:15 pm-5:04 pm

Nonstop1h 49m

Washington, D.C. Reagan-National

Sun 1/18

11:55 am-1:26 pm

Nonstop1h 31m

$162

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Sun 1/11

5:45 am-7:31 am

Nonstop1h 46m

Washington, D.C. Dulles Intl

Wed 1/14

6:00 am-11:12 am

1 stop5h 12m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Tue 1/6

9:30 am-11:16 am

Nonstop1h 46m

Washington, D.C. Dulles Intl

Wed 1/7

10:12 pm-11:49 pm

Nonstop1h 37m

$167

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Fri 5/22

9:35 pm-11:26 pm

Nonstop1h 51m

Washington, D.C. Reagan-National

Mon 5/25

9:59 pm-11:38 pm

Nonstop1h 39m

$167

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Sat 4/4

11:20 am-1:03 pm

Nonstop1h 43m

Washington, D.C. Reagan-National

Sun 4/5

8:59 pm-10:37 pm

Nonstop1h 38m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 60 results
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Compare providers for flights from Boston to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Washington, D.C. in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Washington, D.C. flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Boston-Washington, D.C. flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Boston-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Washington, D.C. flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Washington, D.C.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Washington, D.C.. Price data was last updated on December 12, 2025.

The best time to book flights from Boston to Washington, D.C. is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Boston to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from Boston to Washington, D.C. (average of $38). Flying from Boston to Washington, D.C. in October is currently the most expensive (average of $137). 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 BOS to WAS?

Find hourly flight availability from Boston 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 December 18, 2025.

One of the essential ways to save on airfare from Boston to Washington, D.C. is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 52% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Washington, D.C.. Price data was last updated on December 13, 2025.

Travelers seeking maximum savings on their Boston to Washington, D.C. flight should consider departing on Tuesday evenings 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.

How often are flights from Boston to Washington, D.C. delayed?

About 18% of weekly flights between Boston and Washington, D.C. have experienced delays in the past year, with the average delay time being 129 minutes.

What is the most punctual flight time for Boston to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Washington, D.C. flights?

Over the last year, American Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

The best insider tips for Boston to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Washington, D.C. trip
Airlines
Ethiopian Air

Ethiopian Airlines offers generous award availability in premium cabins via Star Alliance partners.


Ethiopian Airlines' Economy Class features a 32-inch pitch and personal entertainment monitors.

Read more about Ethiopian AirBy Paul Rubio
United Airlines

United Airlines' Economy Plus offers extra legroom seats towards the front of the cabin.


United's Basic Economy allows a personal item only; no carry-on bags are permitted.

Read more about United AirlinesBy Harriet Baskas
Airports
BOS

Use the FlyLogan App to pre-order meals at BOS, saving time before your flight. Most eateries participate in this convenient service.

Read more about BOSBy Paul Rubio
IAD

The Washington Metro Silver Line offers a cost-effective way to reach downtown from IAD in under 40 minutes, with a station five minutes from the terminal.

Read more about IADBy Ramsey Qubein
Our travel experts
Paul Rubio

Paul Rubio

Expert on Ethiopian Air and BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 December 18, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Boston to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,091 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,897 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,190 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Logan Intl; the airport handles an average of 31 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Boston airport to Washington, D.C.. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

  • How long is the flight from Boston to Washington, D.C.?

    United Airlines, Delta, and JetBlue can get you from Boston to Washington, D.C. in just under 1h 46m. Your travel time will be generally consistent. There are 411 mi between Boston and Washington, D.C.. Generally, flights for this route are nonstop.

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

    Spirit Airlines, at $42, was found to be the cheapest airline from Boston to Washington, D.C..Alternate airlines to your destination round-trip include JetBlue and Delta. Spirit Airlines is 79% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $29 on Spirit Airlines. Other airlines that offer cheap prices include JetBlue from $68 and Delta from $73 one-way.

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

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

  • What are the most reliable airlines from Boston 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 Boston to Washington, D.C. on time: Air China (100%), Egyptair (96%), ANA (95%).

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

    On average you can expect to pay $910 for a flight from Boston to Washington, D.C.. The cheapest flight overall is $83 while the most popular route, (Boston Logan Intl - Baltimore/Washington) is currently priced at $119.

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Washington, D.C. (average of $38). Flying from Boston to Washington, D.C. in October is currently the most expensive (average of $137). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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.

Top 6 airlines flying from Boston to Washington, D.C.

Discover the top 6 airlines that operate flights from Boston 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$48Average$140FlexibilityNo cancel feeOn-time65%
DeltaCheapest$84Average$254FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$97Average$256FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$122Average$262FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$147Average$253FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$162Average$275FlexibilityNo cancel feeOn-time63%

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