What is the most punctual flight time for Washington, D.C. to Boston flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

Which airline has the best punctuality record on Washington, D.C. to Boston flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

How often are flights from Washington, D.C. to Boston delayed?

About 18% of weekly flights between Washington, D.C. and Boston have experienced delays in the past year, with the average delay time being 123 minutes.

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 4h 13m. 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.

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.

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).

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 (96%), Air China (71%), Ethiopian Air( 67%).

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 6 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.

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.

£44+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Boston

Cheap flight deals from Dulles Intl to Boston

Enter your travel dates to find the best prices.

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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 30 October 2026.

Tue 8/1217:46 -

1 stop4h 13m

Fri 11/1205:45 -

Nonstop1h 40m

Deal found 29/10£110

Mon 23/1108:40 -

Nonstop1h 39m

Thu 26/1105:30 -

Nonstop1h 40m

Deal found 29/10£110

Wed 30/1208:25 -

1 stop5h 01m

Fri 1/105:45 -

Nonstop1h 47m

Deal found 29/10£111

Tue 15/1208:35 -

1 stop4h 49m

Thu 7/112:26 -

1 stop4h 03m

Deal found 28/10£113

Thu 26/1117:15 -

Nonstop1h 42m

Thu 3/1214:36 -

Nonstop1h 47m

Deal found 28/10£114

Sat 12/1217:30 -

Nonstop1h 42m

Sun 13/1219:01 -

1 stop3h 53m

Deal found 29/10£115

Thu 17/1208:38 -

1 stop4h 48m

Sat 19/1205:45 -

Nonstop1h 47m

Deal found 27/10£116

Sat 12/1212:50 -

Nonstop1h 42m

Tue 15/1206:00 -

1 stop5h 25m

Deal found 30/10£117

Wed 16/1217:46 -

1 stop4h 13m

Sat 19/1205:45 -

Nonstop1h 47m

Deal found 27/10£118

Thu 17/1222:20 -

Nonstop1h 39m

Fri 25/1205:45 -

Nonstop1h 47m

Deal found 27/10£119

Fri 18/1222:20 -

Nonstop1h 39m

Mon 21/1219:40 -

1 stop3h 41m

Deal found 30/10£120

Fri 27/1108:40 -

Nonstop1h 39m

Tue 1/1205:45 -

Nonstop1h 40m

Deal found 27/10£123

Find flight deals from Dulles Intl to Boston

Round-trip from	£110
One-way from	£44
Popular in	June
Cheapest in	January
Average price	£257

United Airlines
11/12-16/12
1 total stop
6h 31m total
Washington, D.C. to Boston

Search Deals

United Airlines
17/12-31/12
Nonstop
1h 39m total
Washington, D.C. to Boston

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£36 potential increase over avg. return price).

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Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).

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Average for round-trip flights in October 2026

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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.

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Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Thu 10/12

22:19-23:59

Nonstop1h 40m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£44

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Sun 22/11

06:10-11:07

1 stop4h 57m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Thu 19/11

08:37-13:31

1 stop4h 54m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£66

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Thu 3/12

22:19-23:59

Nonstop1h 40m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£76

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Sat 21/11

08:37-12:26

1 stop3h 49m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£77

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Wed 30/12

08:25-12:10

1 stop3h 45m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£77

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Tue 5/1

12:35-16:00

1 stop3h 25m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£77

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Wed 25/11

07:00-10:51

1 stop3h 51m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£77

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Wed 2/12

22:19-23:59

Nonstop1h 40m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£77

Washington, D.C.Boston

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

IADBOS

Washington, D.C. Dulles Intl

Tue 29/12

17:29-22:50

1 stop5h 21m

Boston Logan Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£90

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 24 resultsSorted by cheapest first

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.

IAD-BOS

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

Prices

Delays

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

The best time to book flights from Washington, D.C. Dulles Intl Airport to Boston is 74 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boston (average of £157). Flying from Washington, D.C. Dulles Intl Airport to Boston in June is currently the most expensive (average of £316). 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 decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Boston?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Boston flights typically cost between £173 and £290 in December.
The cheapest return price found within the last 5 days was £110 on United Airlines (8 Dec–11 Dec).

Related info for your journey

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 6 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 4h 13m. 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 (96%), Air China (71%), Ethiopian Air( 67%).
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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boston (average of £157). Flying from Washington, D.C. Dulles Intl Airport to Boston in June is currently the most expensive (average of £316). 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.

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Cheapflights makes it easy to find Dulles Intl to Boston flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Millions of users choose and trust Cheapflights to book the best flight deals from Dulles Intl to Boston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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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?

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Cheap flights from Washington, D.C. Dulles Intl Airport to Boston from £44

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 30 October 2026.

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 30 October 2026.

Best flights from Dulles Intl to BostonDiscover carefully curated flight deals from Dulles Intl to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Dulles Intl to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Dulles Intl to BostonExplore direct flight options from Dulles Intl to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Explore direct flight options from Dulles Intl to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Dulles Intl to BostonDiscover last-minute flight deals from Dulles Intl to Boston. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Boston. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Dulles Intl to BostonSearch for one-way flight options from Dulles Intl to Boston. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Dulles Intl to Boston. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

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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.

Cheapflights Insights

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

The best time to book flights from Washington, D.C. Dulles Intl Airport to Boston is 74 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?

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 decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Boston?

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Boston flights typically cost between £173 and £290 in December.The cheapest return price found within the last 5 days was £110 on United Airlines (8 Dec–11 Dec).

How often are flights from Washington, D.C. to Boston delayed?

About 18% of weekly flights between Washington, D.C. and Boston have experienced delays in the past year, with the average delay time being 123 minutes.

What is the most punctual flight time for Washington, D.C. to Boston flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Boston flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

Related info for your journey

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

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

What are the most reliable airlines 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?

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

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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 30 October 2026.

Best flights from Dulles Intl to Boston
Discover carefully curated flight deals from Dulles Intl to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Dulles Intl to Boston
Explore direct flight options from Dulles Intl to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Dulles Intl to Boston
Discover last-minute flight deals from Dulles Intl to Boston. Data last updated 30 October 2026 and is based on user searches.

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 30 October 2026.

Washington, D.C. Dulles Intl Airport to Boston flights typically cost between £173 and £290 in December.
The cheapest return price found within the last 5 days was £110 on United Airlines (8 Dec–11 Dec).