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Cheap flights from Washington, D.C. Dulles Intl Airport to Boston from £55

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 28/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BOS
26 Feb — 5 Mar1
1 adult

The best prices from Washington, D.C. Dulles Intl to Boston Logan Intl are usually found in January or February, booked 54 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Boston (BOS). 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 21 February 2025.

Round-trip from

£88

One-way from

£55

Popular in

April

Cheapest in

January

Average price

£192

Good one-way deal

£82 or less
Frontier
  • Frontier
  • 7/4-9/4
  • 2 total stops
  • 16h 32m total
  • Washington, D.C. to Boston
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United Airlines
  • United Airlines
  • 28/3
  • Nonstop
  • 1h 35m total
  • Washington, D.C. to Boston
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£15 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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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 21 February 2025.

Mon 7/417:54IAD - BOS
1 stop6h 53mFrontier
Wed 9/406:00BOS - IAD
1 stop9h 39mFrontier
Deal found 20/2£88
Thu 20/308:50IAD - BOS
Nonstop1h 35mUnited Airlines
Mon 24/319:36BOS - IAD
Nonstop1h 46mUnited Airlines
Deal found 20/2£93
Thu 27/206:00IAD - BOS
1 stop6h 04mDelta
Mon 3/313:08BOS - IAD
1 stop5h 47mDelta
Deal found 20/2£204

Find flights from Dulles Intl to Boston within your budget

Customise your flight search to find flights from Dulles Intl to Boston 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 858,174 searches. Data last updated 21 February 2025.

Fly from

Dulles Intl

Fly to

Boston

Route

Depart

Return

Price

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 7/4

17:54-00:47

1 stop6h 53m

Boston Logan Intl

Wed 9/4

06:00-15:39

1 stop9h 39m

£88

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 20/3

08:50-10:25

Nonstop1h 35m

Boston Logan Intl

Mon 24/3

19:36-21:22

Nonstop1h 46m

£93

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Tue 18/3

06:00-11:54

1 stop5h 54m

Boston Logan Intl

Tue 18/3

17:10-23:00

1 stop5h 50m

£210

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Fri 28/3

22:15-23:50

Nonstop1h 35m

£55

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 27/3

17:54-00:34

1 stop6h 40m

£56

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Wed 5/3

12:05-19:00

1 stop6h 55m

£93

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Wed 26/2

09:12-13:41

1 stop4h 29m

£198

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 10/3

22:08-17:34

2 stops19h 26m

£237

Flights are sorted by cheapest return flights first.

Deals found on 21/2

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 return 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.

Travel insights for flights from Dulles Intl to Boston

Get recent, data-driven insights about flights from Dulles Intl to Boston including ideal travel times, pricing trends, and more.

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 return flight from Dulles Intl to Boston. Price data was last updated on 14 February 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Boston is 54 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 Washington, D.C. Dulles Intl Airport to Boston?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boston (average of £10). Flying from Washington, D.C. Dulles Intl Airport to Boston in July is currently the most expensive (average of £724). 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?

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 21 February 2025.

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 morning, which can drop the price by up to 4% versus a flight at midday.

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 21 February 2025.

The most flights from IAD to BOS are scheduled on a Friday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Boston by month

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

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

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 21 February 2025.
Delta
8.0
Very Good
8,217 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,217 reviews
Delta
8.0
Very Good
8,217 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,760 reviews
Delta
8.0
Very Good
8,217 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
8,217 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier
6.0
Okay
3,355 reviews
Delta
8.0
Very Good
8,217 reviews
Check prices

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from Washington, D.C. Dulles Intl. On average, Logan Intl has 9 inbound flights from Washington, D.C. Dulles Intl per day from 0 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

    Flying on Frontier is currently your cheapest option to Boston, with prices starting at £88. Additional return tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at £93 and £210, respectively. Frontier is priced at 60% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as £55 on United Airlines. Other airlines that offer cheap prices include Frontier from £56 and Delta from £93 one-way.

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

    Before booking your flight to Boston from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Ethiopian Air (92%), Avianca (89%), United Airlines( 88%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Boston is £82. On average you can expect to pay £110. The most popular route, (Washington, D.C. Dulles Intl - Boston Logan Intl), can usually be booked for £150.

  • 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 holiday 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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boston (average of £10). Flying from Washington, D.C. Dulles Intl Airport to Boston in July is currently the most expensive (average of £724). 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

Travelling 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
Cambridge
Chelmsford
Chelsea
Burlington
Kittery

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Alternative routes for Dulles Intl to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Boston flights

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Yes! Start tracking prices for Dulles Intl to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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