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Cheap flights from Washington, D.C. Dulles Intl Airport to Boston from £60

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 25/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BOS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

£111

One-way from

£60

Popular in

August

Cheapest in

January

Average price

£212
United Airlines
  • United Airlines
  • 2/11-4/11
  • 1 total stop
  • 5h 16m total
  • Washington, D.C. to Boston
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United Airlines
  • United Airlines
  • 16/10
  • 1 total stop
  • 4h 52m total
  • Washington, D.C. to Boston
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£8 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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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 12 September 2025.

Wed 15/1006:15IAD - BOS
1 stop4h 53mUnited Airlines
Fri 17/1005:30BOS - IAD
Nonstop1h 41mUnited Airlines
Deal found 10/9£111
Sat 25/1008:30IAD - BOS
1 stop4h 55mUnited Airlines
Sun 9/1105:30BOS - IAD
Nonstop1h 43mUnited Airlines
Deal found 11/9£111
Wed 15/1008:50IAD - BOS
Nonstop1h 41mUnited Airlines
Sun 19/1005:30BOS - IAD
Nonstop1h 41mUnited Airlines
Deal found 10/9£112
Tue 11/1122:07IAD - BOS
Nonstop1h 35mUnited Airlines
Fri 14/1105:30BOS - IAD
Nonstop1h 43mUnited Airlines
Deal found 11/9£113
Wed 1/1012:35IAD - BOS
Nonstop1h 41mUnited Airlines
Thu 2/1016:23BOS - IAD
1 stop4h 48mUnited Airlines
Deal found 10/9£114
Sat 4/1006:15IAD - BOS
1 stop3h 29mUnited Airlines
Wed 15/1010:34BOS - IAD
1 stop5h 31mUnited Airlines
Deal found 11/9£114
Tue 30/922:19IAD - BOS
Nonstop1h 40mUnited Airlines
Fri 3/1010:34BOS - IAD
1 stop5h 31mUnited Airlines
Deal found 11/9£115
Wed 24/922:18IAD - BOS
Nonstop1h 39mUnited Airlines
Wed 1/1019:08BOS - IAD
Nonstop1h 44mUnited Airlines
Deal found 11/9£116
Mon 29/922:19IAD - BOS
Nonstop1h 40mUnited Airlines
Sat 4/1009:30BOS - IAD
Nonstop1h 44mUnited Airlines
Deal found 11/9£117
Sat 25/1017:16IAD - BOS
Nonstop1h 40mUnited Airlines
Sat 1/1105:30BOS - IAD
Nonstop1h 43mUnited Airlines
Deal found 10/9£117
Tue 7/1022:19IAD - BOS
Nonstop1h 40mUnited Airlines
Thu 9/1005:30BOS - IAD
Nonstop1h 41mUnited Airlines
Deal found 10/9£118
Fri 24/1006:15IAD - BOS
1 stop4h 53mUnited Airlines
Sat 25/1017:19BOS - IAD
1 stop5h 39mUnited Airlines
Deal found 10/9£119

Cheapflights Fare Finder

 
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 12 September 2025.
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

Dulles Intl

Fly to

Boston

Route

Depart

Return

Price

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 29/9

17:10-22:56

1 stop5h 46m

Boston Logan Intl

Sat 4/10

06:00-11:32

1 stop5h 32m

£116

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Fri 3/10

08:30-13:25

1 stop4h 55m

Boston Logan Intl

Sat 4/10

06:00-11:32

1 stop5h 32m

£119

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 15/11

08:45-12:29

1 stop3h 44m

Boston Logan Intl

Mon 17/11

18:25-22:58

1 stop4h 33m

£119

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Wed 15/10

22:19-23:59

Nonstop1h 40m

Boston Logan Intl

Fri 17/10

05:30-07:11

Nonstop1h 41m

£119

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 29/9

22:19-23:59

Nonstop1h 40m

Boston Logan Intl

Wed 1/10

05:30-07:11

Nonstop1h 41m

£120

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 8/11

08:45-12:29

1 stop3h 44m

Boston Logan Intl

Sun 9/11

05:30-07:13

Nonstop1h 43m

£123

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Tue 30/9

06:15-11:08

1 stop4h 53m

Boston Logan Intl

Tue 30/9

16:23-21:11

1 stop4h 48m

£123

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Mon 20/10

22:19-23:59

Nonstop1h 40m

Boston Logan Intl

Sat 25/10

05:30-07:11

Nonstop1h 41m

£140

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Thu 25/9

06:15-11:04

1 stop4h 49m

Boston Logan Intl

Sat 27/9

05:30-07:11

Nonstop1h 41m

£145

Washington, D.C.Boston

IAD - BOS

IADBOS

Washington, D.C. Dulles Intl

Sat 11/10

22:19-23:59

Nonstop1h 40m

Boston Logan Intl

Tue 14/10

05:30-07:11

Nonstop1h 41m

£148

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 23 results
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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.

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 return flight from Dulles Intl to Boston. Price data was last updated on 29 August 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 12 September 2025.

When flying from Washington, D.C. Dulles Intl Airport to Boston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 12 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.

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

    Airlines like United Airlines fly from Washington, D.C. Dulles Intl Airport to Boston in about 5h 46m. The time it takes to get you to your destination can typically vary by up to . There are 411 mi between Washington, D.C. Dulles Intl Airport and Boston.

  • 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: Egyptair (92%), Ethiopian Air (87%), Avianca( 84%).

  • 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Peabody
Cambridge
Somerville
Quincy
Chelmsford

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Alternative routes for Dulles Intl to Boston

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Can Cheapflights find flights from Dulles Intl to Boston with no change fees?

Yes, we can. To see specific flights from Dulles Intl to Boston with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Dulles Intl to Boston become cheaper?

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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