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BOS - IAD

$70 Find cheap flights from Boston to Washington Dulles Airport

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 7/16. 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
Fri 7/12
Fri 7/19

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 travelers have searched 44,148,666 times on KAYAK, and here is why:

Save 21% 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
5:30 am - 7:11 amBOS-IAD
1h 41mnonstop
10:20 pm - 11:58 pmIAD-BOS
1h 38mnonstop
$139United Airlines
Find Deal
Thu, Jul 11 - Mon, Jul 15
5:30 am - 7:11 amBOS-IAD
1h 41mnonstop
6:00 am - 11:04 amIAD-BOS
5h 04m1 stop
$149United Airlines
Find Deal
Tue, Aug 13 - Sun, Aug 18
5:30 am - 7:11 amBOS-IAD
1h 41mnonstop
5:27 pm - 7:07 pmIAD-BOS
1h 40mnonstop
$153United Airlines
Find Deal
Mon, Jul 1 - Wed, Jul 10
10:55 am - 4:23 pmBOS-IAD
5h 28m1 stop
6:05 am - 11:16 amIAD-BOS
5h 11m1 stop
$158United Airlines
Find Deal
Fri, Aug 23 - Sun, Aug 25
5:30 am - 7:11 amBOS-IAD
1h 41mnonstop
8:37 am - 10:17 amIAD-BOS
1h 40mnonstop
$161United Airlines
Find Deal
Tue, Jul 9 - Thu, Jul 11
4:09 pm - 11:20 amBOS-IAD
19h 11m3 stops
12:55 pm - 7:30 pmIAD-BOS
6h 35m2 stops
Fri, Sep 20 - Mon, Sep 23
3:02 pm - 7:20 amBOS-IAD
16h 18m2 stops
12:55 pm - 7:30 pmIAD-BOS
6h 35m2 stops
Mon, Sep 9 - Fri, Sep 13
6:00 am - 12:48 pmBOS-IAD
6h 48m1 stop
5:25 pm - 11:49 pmIAD-BOS
6h 24m1 stop
$246Delta
Find Deal
Mon, Aug 12 - Mon, Sep 9
6:00 am - 12:48 pmBOS-IAD
6h 48m1 stop
5:25 pm - 11:49 pmIAD-BOS
6h 24m1 stop
$276Delta
Find Deal
Thu, Aug 15 - Mon, Sep 9
6:45 am - 9:37 pmBOS-IAD
14h 52m1 stop
11:13 am - 11:16 pmIAD-BOS
12h 03m1 stop
$313Sun Country Air
Find Deal
Sat, Jul 13 - Sat, Jul 27

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’s the cheapest day of the week to fly from Boston to Washington Dulles Airport?

The average price of all flights from Boston to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Washington Dulles Airport on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Boston to Washington Dulles Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

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 $213 on average. On the other hand, the most expensive months are April and October, where the average cost of tickets is $359 and $324 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 59 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 $70. United Airlines proposed a round-trip connection from $139 and Delta from $246.

Which airlines fly non-stop 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 $144.

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

Each day, there are 4 nonstop 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 7:00 pm and most flights take off in the morning. Each week, there are 28 flights and there are the same amount of flights each day 4.

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 4 cabin class options for the route. These are First, Business, Economy and Prem 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 cover the 411 miles separating Boston to Washington Dulles Airport in about 1h 34m.

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

Early birds can take the earliest flight from Boston at 5:30 am and will be landing in Washington, D.C. Dulles Intl Airport at 7:11 am.

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 7:10 pm and lands at 8:54 pm.

Good to know

Low season

February

High season

May

Cheapest flight

$70
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 0% lower 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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 $70 for a one-way ticket and $139 for a round-trip.

  • Do I need a passport to fly between Boston and Washington Dulles Airport?

    A passport is not required to fly from Boston to Washington Dulles Airport.

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

    All the following airlines offer inflight Wi-Fi service on the Boston to Washington Dulles Airport flight route: JetBlue, Delta, American Airlines, Lufthansa, Alaska Airlines, Air France, United Airlines, KLM, and Virgin Atlantic.

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

    The Boeing 737-900 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 nonstop flights from Boston to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Boston to Washington, D.C., Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boston to Washington, D.C. are Delta and Alaska Airlines. With an average price for the route of $189 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $118 and an overall rating of 8.0.

  • 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 travelers 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 round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to Boston with another airline. Booking your flights between Boston and IAD can sometimes prove cheaper using this method.

  • 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

KAYAK’s top tips for finding a cheap flight from Boston to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $123 or less one-way and $255 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 non-stop 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.

Nonstop 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

Nonstop 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 5 airlines serving 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.
8.0
Alaska AirlinesOverall score based on 9269 reviews
7.3Entertainment
7.9Comfort
7.3Food
8.2Boarding
8.6Crew
Airline reviews

It was an okay experience overall. But, I’m quite tall and sitting in those seats was horrific and so uncomfortable. The flight attendants were quite rude when enforcing the procedures for take off and landing.

6.0 GoodAnonymous, Jun 2024EWR - LAX
Read more about Alaska Airlines reviews

It was an okay experience overall. But, I’m quite tall and sitting in those seats was horrific and so uncomfortable. The flight attendants were quite rude when enforcing the procedures for take off and landing.

Free wifi. Already pay a ridiculous fee for checking bags. With all those profits, snacks and entertainment should be better than 1990s

It was cancelled due to crew. I missed a special family graduation due to this

First class only upgrades seat width. The bottom cushion of the seat sloped forward so much that I was constantly sliding out of my seat. The meal was awful, granola and dried fruit? Seriously, for what I paid to upgrade? I can bring my own sawdust and rotten fruit for a whole lot less. Priority boarding is great except when you have a hundred economy passengers stranding in the aisle slamming you in the face with their enormous carry ons and smelly asses right under your nose. I want my money back for that leg of my trip. It wasn’t worth the money for such a minimal upgrade.

I had never flown Alaska Airlines before. I’ll definitely use them again. Seats were comfortable and roomier than expected.

Seats lack shoulder and elbow room. The lady next to me was short and slightly heavy with knee problems, she kept jabbing me with her elbow while playing her game on her phone for 2 hours, the duration of the whole flight. It was frustrating and annoying! I was in the middle seat, there was no space to adjust to avoid her arm jabbing me.

I was in second from last seat. My luggage was in row 15. I asked the stewardess if I could move up before the plane lands. There were 3 empty rows. She went on to explain to me, how no one was sitting there when the plane took off and there was no education on the exit doors. Blah, blah, blah. I said ok, S he kept over explaining to me. So whatever if that’s the rules. She went in the back to the other 2 stewards to tell them the entire conversation I just had with her. Not only could I hear her so could all the back rows of the plane. This was very unprofessional and inappropriate.

Soda cans were mini-size; snacks were teeny. Options for entertainment on trans-continent flights were bad - no seat screens and no way to support device (as seen on other airlines) so had to hold device in position. Just overall, not good (compared to United)

I like the big picture of the Eskimo on the tail of the plane.

The crew members were wonderful. When we encountered a little turbulence, the pilots let us know and provided an estimate of how long it would last. Another nice amenity: every seat has AC power outlets and USB ports. It was a 6-hour flight, which seems a bit much for a single-aisle jet: over 200 passengers with access to only 3 restrooms (assuming you time it right and won't be blocked in by beverage carts); food is mediocre, over-priced, and (if you failed to reserve a meal ahead of time) the flight attendants have to process food/meal sales in the aisle. To access any entertainment, you must use your own device to log on to the plane's wi-fi (or bring your own entertainment).

It was very cold because the air conditioner was on high power, and my son got sick.

3 hours late and all they have is was a $12 meal voucher. That’s not even enough to cover fast food.

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

They did a fine job. Can't wait to use Delta in the future.

Seats in first class on the E175 recline too far back. I was in 2A, and the man in 1A fully reclined almost the entire flight. It took 6-7 inches of space away from me and made it very difficult to work on my laptop.

Mario was great. Made a night flight on a small aircraft pleasant and memorable.

Overall fine but both ways for this trip was delayed.

I had back trouble prior to my flight and everyone was great about helping me.

My tv was broken on the flight which is disappointing when you pay for a seat and expect a service

Always delays from Boston to Salt lake but this time was very long. Don’t understand while they board the passengers and then make them sit in the plane

Service for food to our seat was a bit slow. Snack choices were just pretzels or baked chips. My seat cushion was not attached. Other than Barbie, video choice were not very good or current.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

almost 4 hour delay as they over booked and had to wait for 8-10 volunteers to agree to travel next day.

Old plane. No outlets for laptop or phone. Seats worn out. Area around seat dirty.

I loved the flight and the crew. It was comfortable and smooth.

The crew was openly hostile and condescending to the customers. They spent the majority of that time in the rear talking and seemed really agitated when people asked questions. I heard five different people told that the information they requested was in the handout or safety brief.

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

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.

Terrible. I didn’t fly and I had an important meeting the next day.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

The flight was great until towards the end when the flight attendant read an excessively long commercial for purchasing an american airlines credit card. The worst part is that we are doing a lot of traveling this year so i was actually interested in getting the credit card, but I was so annoyed with the long commercial that I completely dismissed the flight attendant bringing around the information. Next time, keep the sales pitch to 10 seconds and then pass around the brochures!!

Nice aircraft. Plane was PACKED full and distance between seats was tight. Had it been more than a two hour flight it would not have been tolerable. I had much more knee space on the JetBlue flight I went out on.

New ridiculous policy by american destroyed my allegiance to american. As a million miler with american, I expected it would be easy to get on an earlier flight when I got to airport earlier than expected, and save a five hour layover. WRONG. The online app would not let me switch flights, So I called, and was promised a call back in 90 minutes. HAH! The customer service desk at DCA said “we no longer have access to changing a flight on our screens. If the app couldn’t do it, I should send a letter to American, but there’s nothing else possible!”

I am tired of being nickel and dimed for seat location, checked luggage and carry on bags. That is why i rarely fly anymore.

delayed delayed delayed. was supposed to have a 2 hour layover and very nearly missed my connection.

It was right on time and crew were very courteous

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

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

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.
7/16Tue
nonstopUnited Airlines
1h 41mBOS-IAD
$70
9/11Wed
1 stopUnited Airlines
5h 28mBOS-IAD
$79
6/19Wed
nonstopUnited Airlines
1h 44mBOS-IAD
$84
9/10Tue
2 stops
25h 08mBOS-IAD
$111
7/9Tue
2 stops
25h 44mBOS-IAD
$115
7/9Tue
1 stopDelta
6h 35mBOS-IAD
$124
7/10Wed
1 stopDelta
6h 48mBOS-IAD
$128
8/3Sat
1 stopAmerican Airlines
14h 15mBOS-IAD
$237
9/19Thu
2 stopsAmerican Airlines
14h 11mBOS-IAD
$286
9/14Sat
1 stopAlaska Airlines
16h 59mBOS-IAD
$300

Search by stops

Search by airline

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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.
6/17Mon
nonstopUnited Airlines
1h 41mBOS-IAD
6/24Mon
nonstopUnited Airlines
1h 36mIAD-BOS
$167
6/17Mon
multi-stopUnited Airlines
4h 58mBOS-IAD
6/24Mon
nonstopUnited Airlines
1h 36mIAD-BOS
$177
6/16Sun
nonstopUnited Airlines
1h 41mBOS-IAD
6/21Fri
nonstopUnited Airlines
1h 36mIAD-BOS
$233
6/17Mon
multi-stopUnited Airlines
4h 58mBOS-IAD
6/24Mon
multi-stopUnited Airlines
3h 50mIAD-BOS
$243
6/17Mon
multi-stop
25h 44mBOS-IAD
6/21Fri
multi-stop
10h 45mIAD-BOS
$260
6/17Mon
multi-stop
16h 54mBOS-IAD
6/24Mon
multi-stop
10h 45mIAD-BOS
$268
6/17Mon
multi-stopDelta
3h 58mBOS-IAD
6/21Fri
multi-stopDelta
5h 32mIAD-BOS
$282
6/16Sun
multi-stopDelta
6h 05mBOS-IAD
6/21Fri
multi-stopDelta
5h 32mIAD-BOS
$307
6/17Mon
multi-stopSouthwest
18h 40mBOS-IAD
6/20Thu
multi-stopSouthwest
22h 05mIAD-BOS
$656
6/15Sat
multi-stopAmerican Airlines
17h 14mBOS-IAD
6/25Tue
multi-stopAmerican Airlines
14h 33mIAD-BOS
$804

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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:

$368
$536
$360
$173