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Dulles Intl

$76+ Cheap flights from Boston (BOS) to Dulles Intl (IAD)

BOS — IAD
Oct 17 — Oct 241
Sat 10/17
Sat 10/24
1 adult, Economy
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Find cheap flights from Boston to Dulles Intl 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.
Cheapflights Tip: The best prices from Boston Logan Intl to Washington, D.C. Dulles Intl are usually found in December or January, booked 68 days in advance, depart on a Friday or Saturday and return on a Saturday

Cheap flight deals from Boston to Dulles Intl

Cheapest flights from Boston to Dulles Intl

Wed 10/149:30 am -
Nonstop1h 41m
Sat 10/1710:15 pm -
Nonstop1h 44m
Deal found 9/16$171
Wed 10/1410:51 am -
1 stop5h 32m
Wed 10/215:15 pm -
Nonstop1h 51m
Deal found 9/16$181
Thu 10/85:45 am -
Nonstop1h 35m
Wed 10/2110:15 pm -
Nonstop1h 44m
Deal found 9/16$183
Fri 10/165:45 am -
Nonstop1h 35m
Tue 10/205:15 pm -
Nonstop1h 51m
Deal found 9/16$184
Tue 10/67:13 pm -
Nonstop1h 45m
Wed 10/710:15 pm -
Nonstop1h 44m
Deal found 9/16$186
Sat 12/1211:34 am -
1 stop6h 13m
Sun 12/1310:33 pm -
1 stop12h 06m
Deal found 9/16$192
Mon 10/57:00 pm -
1 stop3h 59m
Wed 10/78:50 am -
Nonstop1h 42m
Deal found 9/16$193
Mon 10/55:45 am -
Nonstop1h 35m
Tue 10/65:15 pm -
Nonstop1h 51m
Deal found 9/16$195
Thu 11/55:30 am -
Nonstop1h 40m
Sun 11/88:40 am -
Nonstop1h 39m
Deal found 9/16$196
Wed 11/115:30 am -
Nonstop1h 40m
Mon 11/165:15 pm -
Nonstop1h 42m
Deal found 9/16$197

Find flight deals from Boston to Dulles Intl

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$171
(United Airlines)

One-way from

$76
(Priceline)

Popular in

June

Cheapest in

December

Average price

$304

Good round-trip deal

$335 or less

Good one-way deal

$185 or less
Provider with most accurate pricing for Boston Logan Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Washington, D.C. Dulles Intl flights.
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From Boston Logan Intl to Washington, D.C. Dulles Intl
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One-way flight from Boston Logan Intl to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Boston Logan Intl to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Boston Logan Intl to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Boston to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Tue 10/20

9:30 am-11:11 am

Nonstop1h 41m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$86
Quickest round-trip

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Sat 10/17

5:45 am-7:20 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$86

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Sat 10/31

5:57 pm-10:25 pm

1 stop4h 28m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$96

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Thu 11/12

9:30 am-11:15 am

Nonstop1h 45m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$106

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Fri 10/23

5:45 am-7:20 am

Nonstop1h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$109

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Tue 11/3

6:05 pm-10:25 pm

1 stop4h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$131

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Thu 10/29

5:39 am-10:12 am

1 stop4h 33m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$134

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Sat 12/5

9:05 am-4:15 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$134

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Fri 10/16

6:00 am-11:50 am

1 stop5h 50m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$134

BostonWashington, D.C.

BOS Boston Logan Intl - IAD Washington, D.C. Dulles Intl

BOSIAD

Boston Logan Intl

Thu 3/11

7:30 am-11:34 am

1 stop4h 04m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 24 resultsSorted by cheapest first
1
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3

Compare providers for flights from Boston to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Dulles Intl in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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. Dulles Intl Airport 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 Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Boston with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Boston to Washington, D.C. Dulles Intl Airport

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

The price you pay for your flight from Boston to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, December is the cheapest month in which you can book a flight from Boston to Washington, D.C. Dulles Intl Airport (average of $251). Flying from Boston to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $371). 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 IAD?

When flying from Boston to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 30% versus a flight at noon.

How much does it cost to fly round-trip from Boston to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment.

Boston to Washington, D.C. Dulles Intl Airport flights typically cost between $230 and $399 in October.
The cheapest round-trip price found within the last 5 days was $171 on United Airlines (Oct 14-Oct 17).

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

Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Paul Rubio

Paul Rubio

Expert on Ethiopian Air and BOS

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 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

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 Dulles Intl

Get a feel of what it's like to fly with Delta,United Airlines, andJetBlue from Boston to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,579 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
Delta
7.8
Good
8,579 reviews
Delta
7.8
Good
8,579 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
United Airlines
7.4
Good
10,214 reviews
Delta
7.8
Good
8,579 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
JetBlue
7.1
Good
3,035 reviews
Delta
7.8
Good
8,579 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.8

Overall

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Related info for your journey

  • What airport do you fly from for flights from Boston to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 17 flights from Logan Intl to Washington, D.C. Dulles Intl per day from 3 different airlines.

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

    A quick flight from Boston to Washington, D.C. Dulles Intl Airport can take about 1h 47m. United Airlines provides one of the quickest options available for as low as $184. Airlines will cover a distance of 411 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Delta ($128), United Airlines ($160), and JetBlue ($171) offers the cheapest pricing from Boston to Washington, D.C. Dulles Intl Airport. Users have found that Delta is 57% cheaper than the other options available to this destination.

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

    $83 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $83 and $87, respectively.

  • What are the most reliable airlines from Boston to Washington, D.C. Dulles Intl Airport?

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Boston, check out the most reliable airlines to get you to your destination on time: Egyptair (92%), Ethiopian Air (92%), Air China( 83%).

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

    On average you can expect to pay $1,439 for a flight from Boston to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $118 while the most popular route, (Boston Logan Intl - Washington, D.C. Dulles Intl) is currently priced at $171.

  • Can I find deals for flights from Boston to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Boston to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Dulles Intl.

  • Can I find deals for business class flights from Boston to Dulles Intl?

    Yes. Cheapflights offers flight deals from Boston to Dulles Intl 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. Dulles Intl Airport?

    Currently, December is the cheapest month in which you can book a flight from Boston to Washington, D.C. Dulles Intl Airport (average of $251). Flying from Boston to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $371). 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. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Arlington
Owings Mills
Lanham
Tysons
Woodbridge
Reston
Chantilly
Herndon
Hyattsville
Rockville
Fredericksburg
Falls Church
Sterling
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Boston to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$256FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$160Average$304FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$171Average$267FlexibilityNo cancel feeOn-time62%

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