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Washington, D.C.

$72+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — WAS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Washington, D.C. are usually found in January or September, booked 68 days in advance, depart on a Friday or Thursday and return on a Thursday

Cheap 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 August 14, 2025.

Round-trip from

$127
(Cheapflightsfares)

One-way from

$72
(Southwest)

Popular in

November

Cheapest in

January

Average price

$213

Good round-trip deal

$171 or less

Good one-way deal

$130 or less
From Boston Logan Intl to Washington, D.C. (WAS)
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One-way flight from Boston Logan Intl to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 4% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Boston Logan Intl to Washington, D.C. (WAS).
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Find 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 August 14, 2025.

This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:34 amBOS - BWI
1 stop10h 28mSpirit Airlines
Wed 9/32:30 pmBWI - BOS
1 stop8h 04mSpirit Airlines
Deal found 8/13$129
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:53 amBOS - BWI
1 stop8h 17mMultiple Airlines
Sat 9/64:27 pmBWI - BOS
1 stop6h 20mMultiple Airlines
Deal found 8/14$142
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:58 pmBOS - BWI
Nonstop1h 51mDelta
Wed 9/176:15 amBWI - BOS
Nonstop1h 48mDelta
Deal found 8/14$143
This Rumbo deal was found by Cheapflights users on 8/14. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/43:15 pmBOS - DCA
Nonstop1h 45mJetBlue
Mon 9/86:59 pmDCA - BOS
Nonstop1h 40mJetBlue
Deal found 8/14$144
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:30 amBOS - IAD
Nonstop1h 40mUnited Airlines
Thu 9/45:53 pmIAD - BOS
1 stop5h 29mUnited Airlines
Deal found 8/12$147
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/275:30 amBOS - IAD
Nonstop1h 40mUnited Airlines
Wed 9/36:20 amIAD - BOS
1 stop3h 17mUnited Airlines
Deal found 8/13$148
This Flysmarter deal was found by Cheapflights users on 8/14. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:30 amBOS - DCA
Nonstop1h 39mJetBlue
Tue 9/301:20 pmDCA - BOS
Nonstop1h 58mJetBlue
Deal found 8/14$148
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:30 amBOS - IAD
Nonstop1h 40mUnited Airlines
Wed 9/178:40 amIAD - BOS
1 stop4h 44mUnited Airlines
Deal found 8/12$149
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/710:13 amBOS - BWI
1 stop9h 52mMultiple Airlines
Wed 9/104:27 pmBWI - BOS
1 stop6h 20mMultiple Airlines
Deal found 8/14$150
This United Airlines deal was found by Cheapflights users on 8/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:30 amBOS - IAD
Nonstop1h 43mUnited Airlines
Sat 9/63:55 pmIAD - BOS
Nonstop1h 39mUnited Airlines
Deal found 8/14$151
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:56 pmBOS - IAD
1 stop4h 03mUnited Airlines
Fri 9/510:18 pmIAD - BOS
Nonstop1h 39mUnited Airlines
Deal found 8/12$152
This JetBlue deal was found by Cheapflights users on 8/14. 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.
Thu 9/44:17 pmBOS - DCA
Nonstop1h 45mJetBlue
Sun 9/78:55 amDCA - BOS
Nonstop1h 37mJetBlue
Deal found 8/14$152

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 August 14, 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

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Wed 9/17

6:30 am-8:11 am

Nonstop1h 41m

Baltimore/Washington

Wed 9/17

5:46 pm-7:30 pm

Nonstop1h 44m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Tue 9/9

5:50 pm-7:30 pm

Nonstop1h 40m

Baltimore/Washington

Tue 9/16

3:30 pm-5:05 pm

Nonstop1h 35m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Wed 9/24

6:30 am-8:11 am

Nonstop1h 41m

Baltimore/Washington

Tue 9/30

1:00 pm-2:36 pm

Nonstop1h 36m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Tue 9/9

9:05 am-10:52 am

Nonstop1h 47m

Baltimore/Washington

Tue 9/9

5:36 pm-7:24 pm

Nonstop1h 48m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Tue 9/30

9:14 pm-10:57 pm

Nonstop1h 43m

Baltimore/Washington

Tue 10/7

6:18 am-8:00 am

Nonstop1h 42m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Wed 9/10

7:58 pm-9:49 pm

Nonstop1h 51m

Baltimore/Washington

Wed 9/17

9:00 am-10:36 am

Nonstop1h 36m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Wed 10/15

10:36 am-12:20 pm

Nonstop1h 44m

Baltimore/Washington

Wed 10/22

1:00 pm-2:37 pm

Nonstop1h 37m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Tue 9/16

6:30 am-8:11 am

Nonstop1h 41m

Baltimore/Washington

Wed 9/17

5:46 pm-7:30 pm

Nonstop1h 44m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Tue 9/9

7:58 pm-9:49 pm

Nonstop1h 51m

Baltimore/Washington

Tue 9/16

9:00 am-10:36 am

Nonstop1h 36m

$143

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Tue 9/16

6:30 am-8:11 am

Nonstop1h 41m

Baltimore/Washington

Tue 9/16

1:00 pm-2:36 pm

Nonstop1h 36m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 58 results
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The best insider tips for Boston to Washington, D.C. flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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

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 August 8, 2025.

The best time to book flights from Boston to Washington, D.C. is 68 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, July is the cheapest month in which you can book a flight from Boston to Washington, D.C. (average of $302). Flying from Boston to Washington, D.C. in April is currently the most expensive (average of $337). 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 August 14, 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 at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% 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 August 10, 2025.

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

Weekly flight availability from Boston to Washington, D.C.

Explore weekly flight availability from Boston 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 August 14, 2025.

The most flights from BOS to WAS are scheduled on a Thursday (84 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).

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 August 14, 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
8.0
Very good
7,980 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.2
Good
2,914 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,045 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 63 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.

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

    Spirit Airlines, at $51, 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 73% 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 $72 on Southwest. Other airlines that offer cheap prices include Frontier from $77 and United Airlines from $79 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: Ethiopian Air (98%), Egyptair (96%), ANA (95%).

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

    On average you can expect to pay $875 for a flight from Boston to Washington, D.C.. The cheapest flight overall is $138 while the most popular route, (Boston Logan Intl - Baltimore/Washington) is currently priced at $117.

  • 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, July is the cheapest month in which you can book a flight from Boston to Washington, D.C. (average of $302). Flying from Boston to Washington, D.C. in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

Browse thousands of different options on Cheapflights for your next trip

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$49Average$129FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$60Average$268FlexibilityNo cancel feeOn-time62%
DeltaCheapest$84Average$244FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$146Average$248FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$147Average$264FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$167Average$268FlexibilityNo cancel feeOn-time63%

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