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

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Boston is United Airlines. Our recent data shows that you can find tickets from as low as $137 on this airline. Additional options worth looking into are Frontier and Allegiant Air, starting at $140 and $202 round-trip. United Airlines is 51% cheaper than the average price of flights available within the next 90 days to this destination.

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

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Frontier and Allegiant Air, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Boston for a low price.

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

On average you can expect to pay $247 for a flight from Washington, D.C. Dulles Intl Airport to Boston. The cheapest flight overall is $88 while the most popular route, (Washington, D.C. Dulles Intl - Boston Logan Intl) is currently priced at $137.

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

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 Washington, D.C. Dulles Intl Airport to Boston on time: Avianca (89%), Egyptair (83%), Air China (82%).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Boston?

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to Boston are JetBlue, Delta and Spirit Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Boston?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Boston. Check prices with Cheapflights to find a great deal for your trip.

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

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, January can be a great choice for travel to Boston. Flights to Boston from Washington, D.C. Dulles Intl Airport in January are about $196 on average during January, but can be found for as low as $67.

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

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Boston 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 Washington, D.C. Dulles Intl Airport-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Boston. 4 airlines have flights to Logan Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Boston Logan Intl should not be difficult; the airport handles an average of 16 inbound flights from Washington, D.C. Dulles Intl per day.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Dulles Intl to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$69+ Flights from Washington, D.C. Dulles Intl Airport to Boston - Compare & Save Big

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Boston Logan Intl are usually found in January or March, booked 54 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Dulles Intl to Boston

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$137 (United Airlines)
One-way from	$69 (United Airlines)
Popular in	May
Cheapest in	January
Average price	$317
Good round-trip deal	$230 or less
Good one-way deal	$119 or less

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Boston Logan Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Boston Logan Intl flights.

Search Deals

From Washington, D.C. Dulles Intl to Boston Logan Intl

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Boston Logan Intl

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($21 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

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Average for round-trip flights in May 2025

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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Boston Logan Intl.

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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Boston Logan Intl.

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Find flight deals from Dulles Intl to Boston

Cheapest flights from Dulles Intl to Boston
Explore the most affordable flight options available from Dulles Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2025.

Tue 6/34:00 pmIAD - BOS

Nonstop1h 41mUnited Airlines

Thu 6/55:30 amBOS - IAD

Nonstop1h 34mUnited Airlines

Deal found 5/13

$137

Fri 8/156:07 pmIAD - BOS

1 stop6h 31mFrontier

Sun 8/2410:15 amBOS - IAD

1 stop7h 16mFrontier

Deal found 5/15

$140

Mon 6/93:13 pmIAD - BOS

1 stop18h 04mAllegiant Air

Thu 6/1211:31 amBOS - IAD

1 stop8h 54mAllegiant Air

Deal found 5/14

$175

Thu 6/1211:52 amIAD - BOS

1 stop21h 33mMultiple Airlines

Sat 6/1412:51 pmBOS - IAD

1 stop8h 02mMultiple Airlines

Deal found 5/14

$204

Sat 5/246:17 pmIAD - BOS

1 stop4h 39mDelta

Tue 6/35:20 amBOS - IAD

1 stop6h 46mDelta

Deal found 5/14

$251

Wed 6/41:59 pmIAD - BOS

1 stop5h 19mAmerican Airlines

Mon 6/96:26 pmBOS - IAD

1 stop5h 33mAmerican Airlines

Deal found 5/15

$258

Best flights from Dulles Intl to Boston
Discover carefully curated flight deals from Dulles Intl to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 15, 2025.

Tue 6/1012:35 pmIAD - BOS

Nonstop1h 39mUnited Airlines

Thu 6/125:30 amBOS - IAD

Nonstop1h 34mUnited Airlines

Deal found 5/15

$137

Fri 8/156:07 pmIAD - BOS

1 stop6h 31mFrontier

Sun 8/2410:15 amBOS - IAD

1 stop7h 16mFrontier

Deal found 5/15

$140

Mon 5/263:13 pmIAD - BOS

1 stop18h 01mAllegiant Air

Thu 5/2911:31 amBOS - IAD

1 stop8h 01mAllegiant Air

Deal found 5/14

$202

Fri 6/1312:55 pmIAD - BOS

3 stops34h 52mMultiple Airlines

Sun 6/1511:31 amBOS - IAD

1 stop8h 54mMultiple Airlines

Deal found 5/15

$215

Wed 6/49:40 amIAD - BOS

1 stop6h 20mDelta

Thu 7/316:05 amBOS - IAD

1 stop5h 57mDelta

Deal found 5/15

$255

Last-minute flights from Dulles Intl to Boston
Discover last-minute flight deals from Dulles Intl to Boston. Data last updated May 15, 2025 and is based on user searches.

Wed 5/219:00 amIAD - BOS

Nonstop1h 39mUnited Airlines

Sun 5/255:30 amBOS - IAD

Nonstop1h 34mUnited Airlines

Deal found 5/14

$179

Thu 5/2211:54 amIAD - BOS

1 stop21h 41mMultiple Airlines

Sat 5/2412:51 pmBOS - IAD

1 stop8h 09mMultiple Airlines

Deal found 5/14

$242

Fri 5/235:52 pmIAD - BOS

1 stop14h 52mFrontier

Wed 5/2810:45 amBOS - IAD

1 stop11h 45mFrontier

Deal found 5/14

$210

Sat 5/246:17 pmIAD - BOS

1 stop4h 39mDelta

Tue 6/35:20 amBOS - IAD

1 stop6h 46mDelta

Deal found 5/14

$251

Sun 5/255:02 amIAD - BOS

1 stop4h 18mAmerican Airlines

Sat 6/74:48 pmBOS - IAD

1 stop7h 11mAmerican Airlines

Deal found 5/14

$316

Tue 6/34:00 pmIAD - BOS

Nonstop1h 41mUnited Airlines

Thu 6/55:30 amBOS - IAD

Nonstop1h 34mUnited Airlines

Deal found 5/13

$137

Wed 6/41:59 pmIAD - BOS

1 stop5h 19mAmerican Airlines

Mon 6/96:26 pmBOS - IAD

1 stop5h 33mAmerican Airlines

Deal found 5/15

$258

Mon 6/93:13 pmIAD - BOS

1 stop18h 04mAllegiant Air

Thu 6/1211:31 amBOS - IAD

1 stop8h 54mAllegiant Air

Deal found 5/14

$175

Thu 6/126:06 pmIAD - BOS

1 stop6h 37mFrontier

Thu 6/196:00 amBOS - IAD

1 stop11h 21mFrontier

Deal found 5/15

$152

Thu 6/1211:52 amIAD - BOS

1 stop21h 33mMultiple Airlines

Sat 6/1412:51 pmBOS - IAD

1 stop8h 02mMultiple Airlines

Deal found 5/14

$204

One-way flights from Dulles Intl to Boston
Search for one-way flight options from Dulles Intl to Boston. Find affordable one-way fares based on user searches. Data last updated May 15, 2025.

Tue 7/2210:18 pmIAD - BOS

Nonstop1h 41mUnited Airlines

Deal found 5/15

$69

Fri 6/276:07 pmIAD - BOS

1 stop6h 36mFrontier

Deal found 5/15

$76

Mon 6/23:13 pmIAD - BOS

1 stop18h 01mAllegiant Air

Deal found 5/15

$98

Fri 6/1312:55 pmIAD - BOS

3 stops34h 52mMultiple Airlines

Deal found 5/15

$105

Wed 6/181:08 pmIAD - BOS

1 stop7h 58mAmerican Airlines

Deal found 5/15

$127

Sun 6/15:24 pmIAD - BOS

1 stop6h 22mDelta

Deal found 5/15

$132

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Tue 6/3

4:00 pm-5:41 pm

Nonstop1h 41m

Boston Logan Intl

Thu 6/5

5:30 am-7:04 am

Nonstop1h 34m

$137

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 6/12

6:06 pm-12:43 am

1 stop6h 37m

Boston Logan Intl

Thu 6/19

6:00 am-5:21 pm

1 stop11h 21m

$152

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 6/9

3:13 pm-9:17 am

1 stop18h 04m

Boston Logan Intl

Thu 6/12

11:31 am-8:25 pm

1 stop8h 54m

$175

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 6/12

11:52 am-9:25 am

1 stop21h 33m

Boston Logan Intl

Sat 6/14

12:51 pm-8:53 pm

1 stop8h 02m

$204

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 5/24

6:17 pm-10:56 pm

1 stop4h 39m

Boston Logan Intl

Tue 6/3

5:20 am-12:06 pm

1 stop6h 46m

$251

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Wed 6/4

1:59 pm-7:18 pm

1 stop5h 19m

Boston Logan Intl

Mon 6/9

6:26 pm-11:59 pm

1 stop5h 33m

$258

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 7/21

10:18 pm-11:59 pm

Nonstop1h 41m

$69

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sun 7/20

6:06 pm-12:38 am

1 stop6h 32m

$76

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Fri 7/25

4:46 pm-9:46 am

1 stop17h 00m

$92

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sun 6/22

11:12 am-9:25 am

1 stop22h 13m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 12 results

Compare providers for flights from Dulles Intl to Boston

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Boston in May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
CheapOair	Price Accuracy3 stars	Trust 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 Washington, D.C. Dulles Intl Airport-Boston flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Washington, D.C. Dulles Intl Airport-Boston flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Boston flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Boston 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 Washington, D.C. Dulles Intl Airport-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

Airports

IAD

For a smooth departure, use the Aerotrain to navigate between terminals, but allow extra time for long walks and escalators.

BOS

At BOS, rideshares like Uber and Lyft are convenient, but allow extra time for traffic and navigating pickup points.

Our travel experts

Paul Rubio

Expert on BOS

Ramsey Qubein

Expert on IAD

Best time to book a flight from Dulles Intl to Boston

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

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Boston, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boston (average of $218). Flying from Washington, D.C. Dulles Intl Airport to Boston in July is currently the most expensive (average of $308). 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 IAD to BOS?

When flying from Washington, D.C. Dulles Intl Airport to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 33% versus a flight in the afternoon.

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

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

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Boston

The most flights from IAD to BOS are scheduled on a Tuesday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

Rainfall in Boston by month

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boston

To help decide which airline to fly from Washington, D.C. to Boston, see what other customers have to say about Delta, United Airlines and Allegiant Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 reviews

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

7,946 reviews

Delta

8.0

Very good

7,946 reviews

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

8,731 reviews

Delta

8.0

Very good

7,946 reviews

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!

Allegiant Air

7.3

Good

733 reviews

Delta

8.0

Very good

7,946 reviews

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

7,946 reviews

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!

Frontier

6.0

Okay

3,285 reviews

Delta

8.0

Very good

7,946 reviews

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

What airport do you fly into for flights to Boston from Washington, D.C. Dulles Intl?
Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Boston. 4 airlines have flights to Logan Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Boston Logan Intl should not be difficult; the airport handles an average of 16 inbound flights from Washington, D.C. Dulles Intl per day.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Boston round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Boston is United Airlines. Our recent data shows that you can find tickets from as low as $137 on this airline. Additional options worth looking into are Frontier and Allegiant Air, starting at $140 and $202 round-trip. United Airlines is 51% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Boston one-way?
The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $69. However, be on the lookout for offers from Frontier and Allegiant Air, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Boston for a low price.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Boston?
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 Washington, D.C. Dulles Intl Airport to Boston on time: Avianca (89%), Egyptair (83%), Air China (82%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Boston?
On average you can expect to pay $247 for a flight from Washington, D.C. Dulles Intl Airport to Boston. The cheapest flight overall is $88 while the most popular route, (Washington, D.C. Dulles Intl - Boston Logan Intl) is currently priced at $137.
Can I find deals for flights from Dulles Intl to Boston that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Boston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Boston.
Can I find deals for business class flights from Dulles Intl to Boston?
Yes. Cheapflights offers flight deals from Dulles Intl to Boston 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 Washington, D.C. Dulles Intl Airport to Boston?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boston (average of $218). Flying from Washington, D.C. Dulles Intl Airport to Boston in July is currently the most expensive (average of $308). 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

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Top 4 airlines flying from Dulles Intl to Boston

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$63	Average$210	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$74	Average$118	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$78	Average$218	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$148	Average$290	FlexibilityNo cancel fee	On-time69%

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$69+ Cheap flights from Dulles Intl (IAD) to Boston (BOS)

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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Boston with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Boston Logan Intl are usually found in January or March, booked 54 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Dulles Intl to Boston

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to Boston

Cheapest flights from Dulles Intl to BostonExplore the most affordable flight options available from Dulles Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2025.

Explore the most affordable flight options available from Dulles Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Dulles Intl to Boston

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 Dulles Intl to Boston in May.

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

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

Airports

IAD

BOS

Our travel experts

Best time to book a flight from Dulles Intl to Boston

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Boston. Price data was last updated on May 9, 2025.

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

What is the cheapest time of day to fly from IAD to BOS?

Find hourly flight availability from Dulles Intl to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 15, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Boston. Price data was last updated on May 11, 2025.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Boston

Explore weekly flight availability from Dulles Intl to Boston. 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 May 15, 2025.

Rainfall in Boston by month

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Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated May 15, 2025.

Related info for your journey

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

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

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Dulles Intl to Boston

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Top 4 airlines flying from Dulles Intl to Boston

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Cheapest flights from Dulles Intl to Boston
Explore the most affordable flight options available from Dulles Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2025.