Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

BOS - IAD

Find cheap flights from Boston to Washington Dulles Airport from £76

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Dulles Intl departing on 21/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
ו' 31/5
ו' 7/6

Search hundreds of travel sites at once for deals on flights to Washington Dulles Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Washington, D.C., as well as popular online travel agencies
In the last 7 days, travellers have searched 44,052,950 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Boston to Dulles Intl (BOS-IAD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
19:10 - 20:54BOS-IAD
1h 44mdirect
08:40 - 10:20IAD-BOS
1h 40mdirect
£103United Airlines
Find Deal
ד', 29 מאי - ד', 5 יוני
14:25 - 16:09BOS-IAD
1h 44mdirect
08:35 - 13:15IAD-BOS
4h 40m1 stop
£132United Airlines
Find Deal
ד', 29 מאי - ד', 5 יוני
05:45 - 07:27BOS-IAD
1h 42mdirect
22:01 - 23:38IAD-BOS
1h 37mdirect
£143United Airlines
Find Deal
ה', 16 מאי - ו', 17 מאי
05:45 - 07:27BOS-IAD
1h 42mdirect
08:40 - 10:20IAD-BOS
1h 40mdirect
£151United Airlines
Find Deal
ד', 22 מאי - א', 26 מאי
06:00 - 12:19BOS-IAD
6h 19m1 stop
12:30 - 16:13IAD-BOS
3h 43m1 stop
£212Delta
Find Deal
ג', 13 אוג' - ד', 11 ספט'
13:30 - 17:21BOS-IAD
3h 51m1 stop
16:57 - 22:56IAD-BOS
5h 59m1 stop
£220Delta
Find Deal
ב', 20 מאי - ג', 4 יוני
06:00 - 12:19BOS-IAD
6h 19m1 stop
17:15 - 23:50IAD-BOS
6h 35m1 stop
£221Delta
Find Deal
ב', 12 אוג' - ב', 9 ספט'
11:30 - 20:47BOS-IAD
9h 17m1 stop
17:25 - 10:23IAD-BOS
16h 58m1 stop
£228Sun Country Air
Find Deal
ש', 1 יוני - ב', 3 יוני
11:30 - 20:47BOS-IAD
9h 17m1 stop
13:43 - 11:00IAD-BOS
21h 17m1 stop
£243Sun Country Air
Find Deal
ש', 1 יוני - א', 16 יוני
11:30 - 20:47BOS-IAD
9h 17m1 stop
13:43 - 10:49IAD-BOS
21h 06m1 stop
£247Sun Country Air
Find Deal
ש', 1 יוני - א', 9 יוני

Flights from Boston to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Boston to Washington, D.C. Dulles Intl Airport is January, where tickets cost £156 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is £285 and £253 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boston to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Boston to Washington, D.C. Dulles Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 84 days before departure.

Which airlines provide the cheapest flights from Boston to Washington Dulles Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Boston to Washington Dulles Airport found on KAYAK was with United Airlines for £76. United Airlines proposed a return connection from £103 and Delta from £212.

Which airlines fly direct between Boston and Washington, D.C. Dulles Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Boston to Washington, D.C. Dulles Intl Airport.
There is just one airline that flies from Boston to Washington, D.C. Dulles Intl Airport direct and that is United Airlines. The best one-way deal found from United Airlines for the route is £121.

How many flights are there between Boston and Washington, D.C. Dulles Intl Airport per day?

Each day, there are 6 direct flights that take off from Boston and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 1h 42m. The most common departure time is 05:00 and most flights take off at night. Each week, there are 42 flights and there are the same amount of flights each day 6.

Which cabin class options are there for flights between Boston and Washington, D.C. Dulles Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are First and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Boston to Washington Dulles Airport take?

Direct flights from Boston generally make it to Washington Dulles Airport in 1h 41m. The flying distance between the two cities is 411 miles.

What’s the earliest departure time from Boston to Washington Dulles Airport?

Early birds can take the earliest flight from Boston at 05:45 and will be landing in Washington, D.C. Dulles Intl Airport at 07:27.

What’s the latest departure time from Boston to Washington Dulles Airport?

If you prefer to fly at night, the latest flight from Boston to Washington, D.C. Dulles Intl Airport jets off at 19:24 and lands at 21:06.

Good to know - Cheap tickets from Boston to Washington Dulles Airport

Low season

January

High season

November

Cheapest flight

£76
Best time to beat the crowds (30% less expensive on average)
Most popular time to fly (1% more expensive on average)
Flight from Boston to Washington Dulles Airport

When to book flights from Boston to Dulles Intl

Are your dates flexible? Find out the best times to travel from Boston to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Boston to Washington Dulles Airport flights

  • Where should I park my car if I drive to BOS?

    BOS is home to several parking garages. It is also surrounded by several off-site garages. If you want to park your car at a parking garage near this airport, you should consider parking it in one of its off-site garages. This is because off-site garages charge lower rates than on-site ones.

  • Apart from IAD, which other airports serve Washington?

    Washington is served by IAD, Ronald Reagan Washington National Airport (DCA), and Baltimore/Washington International Airport (BWI). If you don’t want to land at IAD, you should opt to land at DCA, as it is closer to Washington and its surroundings than BWI.

  • Is there an on-site hotel at IAD?

    If you would like to stay at a hotel near IAD, you can do so, as this Washington airport is home to Sleepbox Lounge. Found between Gates A6 and A14, near the AeroTrain in Concourse A, this hotel features elite amenities. This hotel’s rooms are relatively cheaper than most hotels near the airport, so staying in it would be economically wise.

  • Is it possible to rent a car at IAD?

    IAD is home to car rental agencies like Avis, Budget, Dollar, Enterprise, Hertz, and National. The counters for these car rentals are within the airport’s terminal complex. Given that all these car rentals are reliable, if you want to rent a car at IAD, you’ll have many agencies to hire from.

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

    In the last 3 days, the lowest price for a flight from Boston to Washington, D.C. Dulles Intl Airport was £95 for a one-way ticket and £129 for a return.

  • Which airports will I be using when flying from Boston to Washington Dulles Airport?

    Boston airport is called Boston Logan Intl and the only airport in Washington Dulles Airport is Washington, D.C. Dulles Intl.

  • Which airlines offer Wi-Fi service onboard planes from Boston to Washington Dulles Airport?

    JetBlue, Delta, American Airlines, Alaska Airlines, and Lufthansa offer inflight Wi-Fi service on the Boston to Washington Dulles Airport flight route.

  • Which aircraft models fly most regularly from Boston to Washington Dulles Airport?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Boston to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Boston to Washington Dulles Airport?

    Star Alliance is the only airline alliance operating flights between Boston and Washington Dulles Airport.

  • On which days can I fly direct from Boston to Washington Dulles Airport?

    There are direct flights from Boston to Washington Dulles Airport on a daily basis.

  • How does KAYAK find such low prices on flights from Boston to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from Boston is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington Dulles Airport with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Boston to Washington Dulles Airport

  • Looking for a cheap flight from Washington Dulles Airport to Boston? 25% of our users found flights on this route for £90 or less one-way and £254 or less round-trip.
  • Boston Logan International Airport (BOS) is one of the most used airports globally. As a result, you’ll likely encounter slow-moving traffic and long lines at its security checkpoints when entering this airport. To have enough time to navigate the traffic and be cleared at the checkpoints, you should reach this airport no less than 2h before your flight on the date you're set to fly from it.
  • If you are journeying from BOS to Dulles International Airport (IAD) with your kids, you should let them have fun in one of BOS’s children’s play areas. These playgrounds are near Gate 18 in Terminal A, Gate 30 in Terminal B, and Gate 25 in Terminal C. It’s worth stating that in any, your kids will have a good time, as they all feature several toys and child-proof playgrounds.
  • In case you’re traveling to Washington with your pet while waiting for your flight at BOS, you can let it relieve itself in one of the airport’s designated pet relief areas. The relief areas at this airport are on the Arrival level curb of every terminal and across Gate E7 in Terminal E.
  • If you’re in no rush to depart IAD, you should consider visiting Be Relax Spa. This spa, located near Gate A32, has dedicated staff and proper spa equipment. As it offers its services at pocket-friendly rates, you will enjoy quality service without incurring a hefty bill here.
  • You can pray, meditate, or reflect privately at IAD, as the airport features a chapel. This interfaith chapel, near Gate A32 on Concourse A, is normally open 24/7.
See more tips

Prefer to fly direct from Boston to Washington Dulles Airport?

Find which airlines fly direct from Logan Intl to Dulles Intl, which days they fly and book direct flights.

Direct departures

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

Monday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Tuesday

ANA, Air China, Austrian Airlines, +7 more

ANA, Air China, +8 more

Wednesday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Thursday

ANA, Austrian Airlines, Avianca, +6 more

ANA, Austrian Airlines, +7 more

Friday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Saturday

ANA, Air China, Austrian Airlines, +7 more

ANA, Air China, +8 more

Sunday

ANA, Austrian Airlines, Avianca, +6 more

ANA, Austrian Airlines, +7 more

See more direct flights

Direct returns

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

Monday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Tuesday

ANA, Air China, Austrian Airlines, +7 more

ANA, Air China, +8 more

Wednesday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Thursday

ANA, Austrian Airlines, Avianca, +6 more

ANA, Austrian Airlines, +7 more

Friday

ANA, Austrian Airlines, Avianca, +5 more

ANA, Austrian Airlines, +6 more

Saturday

ANA, Air China, Austrian Airlines, +7 more

ANA, Air China, +8 more

Sunday

ANA, Austrian Airlines, Avianca, +6 more

ANA, Austrian Airlines, +7 more

See more direct flights
See more direct flights

Top airline flying from Boston to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Boston to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11187 reviews
6.7Food
7.2Comfort
8.1Crew
7.7Boarding
7.1Entertainment
Airline reviews

All flights were on time and boarding was issue free

8.0 ExcellentLisa, Apr 2024RDU - IAD
Read more about United Airlines reviews

All flights were on time and boarding was issue free

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Food choice was poor and we had to buy on board snacks.

We were offer chocolate cookies , not everyone eat chocolate. Thank you

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

Flight was well orchestrated, made up time despite circling a bit all good on United. Travelers can just be so into themselves that common courtesy has gone out window for some, but that’s not on United.

Book cheap flights from Boston to Washington, D.C.

Cheapest flights to Washington, D.C. from Boston found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to Washington, D.C. found on KAYAK in the last 72 hours.
21/5ג'
directUnited Airlines
1h 42mBOS-IAD
£76
11/6ג'
directUnited Airlines
1h 41mBOS-IAD
£80
8/6ש'
1 stopDelta
6h 44mBOS-IAD
£102
1/6ש'
1 stopSun Country Air
9h 17mBOS-IAD
£106
13/7ש'
1 stopSun Country Air
15h 22mBOS-IAD
£110
26/7ו'
1 stopDelta
6h 48mBOS-IAD
£111
22/6ש'
3 stopsSouthwest
18h 30mBOS-IAD
£354
14/8ד'
2 stops
9h 37mBOS-IAD
£394
23/5ה'
2 stops
7h 34mBOS-IAD
£410
2/8ו'
3 stopsSouthwest
18h 40mBOS-IAD
£486

Search by stops

Search by airline

Search by price

Last minute flights from Boston to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boston to Washington, D.C. that are departing in the next 10 days.
5/5א'
directUnited Airlines
1h 42mBOS-IAD
7/5ג'
directUnited Airlines
1h 37mIAD-BOS
£239
5/5א'
multi-stopUnited Airlines
6h 07mBOS-IAD
7/5ג'
directUnited Airlines
1h 36mIAD-BOS
£246
3/5ו'
multi-stopDelta
6h 44mBOS-IAD
6/5ב'
multi-stopDelta
3h 49mIAD-BOS
£254
2/5ה'
directUnited Airlines
1h 42mBOS-IAD
9/5ה'
directUnited Airlines
1h 36mIAD-BOS
£266
2/5ה'
multi-stopUnited Airlines
4h 43mBOS-IAD
9/5ה'
directUnited Airlines
1h 36mIAD-BOS
£273
2/5ה'
multi-stopDelta
6h 44mBOS-IAD
2/5ה'
multi-stopDelta
6h 23mIAD-BOS
£274
2/5ה'
multi-stopDelta
6h 28mBOS-IAD
7/5ג'
multi-stopDelta
6h 47mIAD-BOS
£281
4/5ש'
multi-stopQatar Airways
34h 25mBOS-IAD
6/5ב'
multi-stopQatar Airways
40h 30mIAD-BOS
£2,421
5/5א'
multi-stopQatar Airways
31h 40mBOS-IAD
8/5ד'
multi-stopQatar Airways
33h 59mIAD-BOS
£2,493
2/5ה'
multi-stopQatar Airways
31h 40mBOS-IAD
5/5א'
multi-stopQatar Airways
34h 34mIAD-BOS
£2,523

Search by stops

Search by airline

Search by price

Boston - Washington Dulles Airport Flights

Departure:

Boston (BOS)United States

Destination:

Washington Dulles Airport (IAD)United States

Return flight deals:

Washington Dulles Airport - Boston

Cabin classes:

£233

Browse origins:

  • Flights » 
  • Boston

Browse destinations:

  • Flights » 
  • Worldwide » 
  • Washington, D.C. » 
  • Washington Dulles Airport