Find cheap flights from Boston to Washington Dulles Airport

BOS - IAD

Find cheap flights from Boston to Washington Dulles Airport

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

Round-trip
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Boston (BOS)
Washington Dulles Intl
Thu 5/13
Thu 5/20
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Good to know

Low season

AugustBest time to beat the crowds with an average 24% drop in price.

High season

OctoberMost popular time to fly with an average 17% increase in price.

Average price round-trip

$213(avg. price over the last 2 weeks)

Good deal round-trip

$189or less

Good deal one-way

$98or less

When to book flights from Boston to Washington Dulles Airport

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $98 or less one-way and $189 or less round-trip.
  • The cheapest flight from Boston to Washington Dulles Airport was found 24 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be September, October and November. The cheapest month to fly is August.
  • Morning departure is around 6% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Boston to Washington Dulles Airport flights

Which airlines have a flexible cancellation policy for flights from Boston Logan Intl to Washington Dulles Intl due to COVID-19?

Are there Washington Dulles Airport travel restrictions currently due to Coronavirus?

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

How many flights are there between Boston and Washington Dulles Airport?

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

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

Which airlines fly most frequently between Boston and Washington Dulles Airport?

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

How does KAYAK find such low prices 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?

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

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

Top 3 airlines serving Boston Logan Intl to Washington Dulles Intl

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 29,247 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Pros: "Everything! the best part was that the they kept the middle seat empty!"
Cons: "nothing"

Cons: "For some reason, we were asked several times for Passports. This didn’t make any sense since we are US citizens with drivers license. They even had TSA talk to us. This has to be fixed. Otherwise, Delta experience was great."

Cons: "Nothing, really. Airlines unfortunately can’t make people patient or polite, & I can’t afford a private jet, so I’ll have to settle for an eye roll or twelve."

Pros: "Everything"
Cons: "Nothing"

Cons: "No mechanical failures or delays would be nice"

Cons: "The inoperative TV screens should be repaired."

Pros: "this is the airline"

Cons: "Plane was late taking off. Crew did not provide water when requested. They were busy with beverages that they could sell at a cost."

Cons: "Wonderful"

Pros: "The only thing I liked about the experience and flight was the Delta Sky Club"
Cons: "Everything"

Pros: "Seat was comfortable and I got extra Biscoff Cookies"
Cons: "Great trip"

Pros: "Great food and service in first class"
Cons: "Water waiting on table on arrival"

Pros: "Seating was fine"
Cons: "Did not have a wheelchair waiting for my wife when we arrived in LAX"

Pros: "I was in Comfort+ so there was a bit more leg room than standard economy"
Cons: "Even with Comfort+ things are tight."

Pros: "Coming from Europe Alitalia and Delta did an EXCELLENT job at assisting the passengers get rid of their luggage just as soon as we were done going through customs... I don't usually fly on this route, but I thought it was perfect. Transfer between Delta terminal was a breeze too..."
Cons: "I usually don't fly from JFK. The food court was expensive (18 dollars base price from a burger seems a high even for an airport. I don't fly from NY normally - so maybe I need to tune my expectation for the locale, and it may have NOTHING to do with the airline company."

Pros: "room and services"
Cons: "can't think of anything"

Cons: "Even the baggage was quick (highly unusual for Columbus, Ohio)! Everything went smoothly."

Cons: "Delays due to Democrats not making deal"

Pros: "Smooth flight."
Cons: "Tight seat. Small space."

Pros: "Good service this morning"
Cons: "All good"

Pros: "We left early"

Pros: "Arrived ahead of time"

Cons: "My sit changed last minute, noisy babies"

Cons: "After we boarded and were already sitting in our sits the stewardess came and removed our bags from the overhead compartment for another person with a larger bag! We ended up storing our bags under the sits in-front. The way it was done it was rude and with no consideration for our comfort."

Cons: "Delays, delays, delays... first class ticket from BOS to MSP got me a 6 hour delay and a middle seat in econ main cabin at the back of the plane. Delta you suck!"

Pros: "The flight for getting us therw"
Cons: "No food and no entertainment"

Pros: "Generally, Delta is cleaner, their terminals are much nicer, and the experience is better than one with American and United. I wish they had more direct flights to my normal destinations--I'd fly with them more!"
Cons: "Someone unloaded a lot of crumbs on my tray table and they all got smooshed on the back of the seat between the tray table and chair. It was pretty nasty. (The tray table was clean, the back of the seat wasn't. Please be nasty.)"

Cons: "Tray table was broken, I was downgraded from Comfort plus to main cabin after a plane swap with no mention by anyone and no compensation. Flight was delayed 45 minutes because a flight attendant was running late and then to top it off, at the end of. The flight the attendants blocked anyone fromaim cabin from leaving until all of first class had departed, even when no one was coming they still Blocked it off. This is a practice I have never seen on delta and haven't seen in aviation in almost 20 years in the US"

Pros: "Easy and quick"
Cons: "No complaints"

Pros: "Plane was on time."
Cons: "My seat assignment was in the last row of the plan when the plane was not full"

Pros: "A3A"
Cons: "Ĺ"

Pros: "The staff. They were very helpful and polite!"
Cons: "We didn’t leave on time"

Pros: "Quick flight"
Cons: "Paid $30 for wifi and it never worked. Would like a refund"

Pros: "The staff are wonderful and helpful. Best wishes to Delta. Please keep the great employees."

Pros: "the service in general very nice"

Cons: "Delay in leaving from the airport there were issues with Web checkin Crew wasnt able to give me my boarding pass for the connecting flight and kept saying going to the other counter"

Cons: "Much older plane. Not as comfortable as some other planes I've been on."

Pros: "Nice people. Very helpful."
Cons: "LOST MY BAG IN BOSTON BEFORE EVEN TAKING OFF!!!! Did not make it, and then won't deliver it when it makes it to Kathmandu! This is most distressing."

Pros: "Everything else"

Pros: "I was thankful for the early boarding with a lap infant and was very pleased with the options for entertainment on the TV monitor."
Cons: "The main issue I had was that we sat in row 34 and the noise from the engines often made it difficult to hear announcements, even with headphones in. Look into possibly zoning the audio and turning it up a click or two for rows behind the engines."

Cons: "My wife was told she could not board our flight from Boston to Paris because her passport was expired, even though it was not expired. We were told that in Europe passports cannot expire within 3 months of your departure. However, Delta never let us know about this rule until we literally were boarding the plane. How they could not make us aware of this until we were boarding the airplane is unbelievable and unacceptable. This has ruined our vacation which has been in planning for the last six months."

Cons: "We sat on-board the aircraft, at the gate, for almost 2 hours due to a weather delay. During this time, we were not offered refreshments, nor were we offered any type of "compensatory benefit" for our delay (e.g., free Wi-Fi, vouchers good toward a future flight (a $30 voucher per passenger would seem appropriate), additional SkyMiles (3000-5000 SkyMiles would seem appropriate), etc.)."

Cons: "Missed our connection. Spent the night in Minneapolis. Luckily we had no urgent reason to get home to."

Cons: "Jet airways sucks"

Pros: "red"
Cons: "red"

Pros: "Free drinks in Comfort+"

Pros: "Delta service and conford are great."
Cons: "Pay for wifi"

Cons: "See above description"

Pros: "Flight on time"
Cons: "Unfriendly sataff. Not informed that we have to me know in with a difrnt confirmation number related to the operating Claire. I had to spent one hour to fit this information to be able to check in.? It was an international flight but it was treated like a domestic flight. We were not even offered the curtesy snake for a domestic flight by unfriendly stewards apparently unhappyted with her job. Apparanty all American carrier staffs has no respect for customers. It is not only s united problem. Curtesy and respects goes both ways. They need to be retrained in public relation."

Pros: "Friendly crew"
Cons: "Security staff short with passengers"

Pros: "We didn’t crash."
Cons: "First class seat was uncomfortable and had very little padding. Meal service was not good. No drinks offered."

Pros: "The crew was great as was the check in crew."
Cons: "The comfort of the seat and leg space."

Cons: "Less people because of COVID"

Cons: "Little planes need an interior restoration to make them look better."

Pros: "The crew and the entertainment were excellent."
Cons: "The seating area is very tight and the aisles were extremely narrow."

Cons: "Serving something substantial to eat would be nice."

Pros: "The flight was smooth and the crew was nice."
Cons: "Everything was good."

Pros: "The staff at the boarding gate and the flight crew were friendly and professional."
Cons: "The United gates at Logan airport were quite horrible. Poor signage, limited bathrooms, and all the dining options were quite expensive."

Pros: "I missed my flight due to a delayed flight from denver to Washington. When I arrived I beg if there is a sooner flight to Geneva. They said no more. They book me another flight which has more connections. When I was waiting for my next flight there were actually more flight going and direct to Geneva before my flight. I even ask the gate personel if There is more seats avilable for one of those flight before my flight. They said yes but because I had a luggage it will take time to transfer my luggage and they will end up being delayed. United airlines is HORRIBLE!!! My flight were delayed and with that they should have more consideration for those costumers who were delayed. But instead of being kind and considerate. They had book me a later flight and the worse thing is the itenerary had more connections. Very Exhausting. The other costumer when we were in the line at the costumer service desk some people were given flight which are like 12 hrs away. How Horrible service. I WILL NOT FLY WITH UNITED AIRLINES AGAIN. Very POOR SERVICE."

Pros: "Boarding was fast and landed on time."
Cons: "The temperature was too cold to get comfortable. I had on a jacket and a blanket, drank hot tea and still managed to get a cold after leaving the plane. Also the food wasn’t good."

Cons: "Reliability"

Pros: "Water and snacks offered when flight was delayed over an hour! Crew."
Cons: "Flight delayed over an hour."

Pros: "Salmon and rice."
Cons: "Tvs not working and staff pretending as if they would fix it but actually the problem been going for a while with that airplane. The pizza should not only be a vegetarian one ."

Cons: "Our airplane was supposed to fly 9am but our company changed our plane for 5am"

Pros: "We had issues in that there was no crew! But the United people were great and got us on another flight going to Newark and we were still able to make our connection to Aruba!"

Cons: "The food was terrible."

Cons: "Flight was delay for more than 45 minutes"

Pros: "The plane left on time and smooth transition on and off the plane."
Cons: "N/A"

Pros: "Typical intercontinental flight in coach. Plenty of movies to watch, bin space and comfortable enough seats."
Cons: "I have a severe food allergy and despite requesting and confirming my special meal multiple times I was only offered a banana for the entire trip."

Cons: "Rude crew, departed three hours late, and not permitted to bring carry-on luggage. Awful."

Pros: "Seats."
Cons: "Sat in the middle of two people who took up part of my seat too."

Cons: "Forced to check carryon bags because they said the overhead bins were full. Upon boarding found many overhead bins empty and people who boarded after us were able to bring carryon with them."

Pros: "Willing to drive to Charlottesville. Difficulty finding one way rental"
Cons: "Above"

Pros: "The ground & flight crew was wonderful and accommodating"
Cons: "I wasn't allowed to bring in my carry-on luggage I was forced to check it in. We were told the compartments were fall once we boarded there was plenty of space in the luggage compartment it was a bit disappointing. I think the entertainment is overpriced as well"

Pros: "Very windy during flight, kudos to pilot and crew"

Pros: "Kelly is an exemplary employee at the United counter at Logan. She showed compassion and caring after the passing of my brother and changing my ticket . Kudos to her!"

Cons: "Touch screen did not work on display unit. Was fine because I read, but still."

Pros: "Everything"
Cons: "NA"

Pros: "United airlines handled the flit gut and their international service is excellent."

Cons: "Delay of over 3 hrs!!"

Pros: "Everything went smooth."
Cons: "None"

Pros: "Boarding is an easy process"
Cons: "Little to no complimentary snacks"

Cons: "food is so bad, low quality and small portion looong period before main meal and last meal"

Pros: "Everything."

Pros: "Everything except the wifi not working"
Cons: "The wifi not working"

Pros: "Ease of check in with a stream line flow"
Cons: "the TSA check a bit delaying but okay over all"

Cons: "They mis-tagged my bag and still haven't found it and have not been helpful or informative when I call to check the status"

Pros: "Nothing much"
Cons: "Service needs to be radically improved."

Pros: "Excelente!"
Cons: "Nada"

Cons: "Delayrd"

Pros: "Never again with KAYAK. Sorry."

Cons: "Flying in general."

Pros: "The updates that were sent to me in e-mail."

Cons: "Went like clockwork."

Cons: "Had to check a bag I've carried on several other times."

Cons: "stole my money for 2 flights. Never made it to my destination"

Cons: "Seat/space"

Cons: "They gave me the last seat in the airplane"

Pros: "The friendly and comfortable atmosphere!"
Cons: "PHX is a large airport, and my emailed ticket said Brussles Airlines, Terminal 4. First off, Brussles Airlines is not a carrier at PHX, and secondly no one knew that United was their partner. There was no information provided to me to go to United, which was in Terminal 2. After making a phone call to Brussles Airlines, I ended up getting to the check in gate ten minutes after boarding started. It was a lovely rest of the trip after that though! But please include partner information im the email next time!"

Pros: "Friendly crew"

Pros: "Nothing"
Cons: "At least let the people with no baggage go 1st"

Cons: "Boarding on time."

Cons: "Nothing."

Pros: "Timely, comfortable , friendly staff"
Cons: "Less leg room"

Pros: "Nothing"
Cons: "The entire experience was a nightmare— left gate three times and had to pull plane back in for maintenance—over three hours in the plane. Sucked. Awful."

Pros: "How quick the flight was. And how cheap the plane ticket was."
Cons: "Frontier’s flights are usually delayed and cheap quality."

Pros: "Nothing Frontier can suck my dick"
Cons: "Suck my dick Frontier"

Cons: "The plane was very hot"

Pros: "Nothing"
Cons: "It was late"

Pros: "One of th smoothest flights I have been on. Thanks to the pilot"
Cons: "The seat didn’t have a lever to recline"

Cons: "I haven’t take this tripe because of emergency"

Cons: "Chairs are not comfrrteble at all. No reclining"

Cons: "The crew was not nice and seemed they did not want to be there."

Pros: "A few of the crew were nice, they appeared tired. Had to pay for drinks or snacks. Very small leg space."
Cons: "A few of the crew were nice, they appeared tired. Had to pay for drinks or snacks. Very small leg space."

Cons: "2.5 hours delay is what I didn’t like"

Pros: "Nothing"
Cons: "The up charging for carry on bags and the only free item is water, I m surprised they don’t charge to use the bathroom!"

Pros: "I liked the fact that I can fly red eye."
Cons: "I typically fly Southwest because of the free leg room, free 2 bags checked, and 2 free carry-ons. Frontier "fee's" flyers to death. I have to pay extea for leg room????!!! REALLY! I could see if i was 6'6" but I'm not. If Southwest ever offers red eye flights I'll never patronize Frontier or another airline again."

Cons: "The sits, the tray table, the air conditioner,"

Pros: "The boarding process was the best part of the experience which isn't saying much."
Cons: "Extra fees for everything. I got a sore neck carrying my "personal bag" so as not to be charged. Not even a snack or beverage!! The worst part are the plastic bucket seats with very little padding and no head rests. I WAS MISERABLE AND UNCOMFORTABLE. The attendants were always explaining to MANY customers that they would have to pay for. Drinks-oh and you can only use a credit card. Cash isn't good enough"

Pros: "Nothing"
Cons: "Nickled and dimed for everything - I would rather pay for those services up front. Lame!"

Cons: "Miserable chairs. Hard, Can't recline, armrests are small and don't go up, mini trays vertually useless."

Pros: "On time departure."
Cons: "Despite buying a ticket, you have to pay again to pick a seat when you check in."

Cons: "not much space, flight attendants were mean"

Cons: "Seats"

Pros: "Nothing. I did not take the flight. Three other passengers and I were at the ticket counter with no frontier employees to be found. No one materialized. We were offered another flight 7 hours later in the day, on the other side of the country with a layover so long it would have gotten us into DC the next day. One passenger was charged a change fee and got a flight out two days later. Not sure who has the time or patience for this."
Cons: "Everything. Terrible staffing levels, no customer service. So unreliable."

Pros: "Ticket agent was very helpful"
Cons: "Everything was fine, no complaints"

Cons: "Leg room of chair very tight"

Pros: "great fare"
Cons: "add on's"

Pros: "Once we got into the Gate, which was a problem coming and going into Denver --it was fine. We waited for a good 20-30 minutes to pull up to the gate. (on the way to Seattle, in Denver the wait was 40 minutes on the tarmac). Seems like Frontier must be struggling."

Pros: "The crew, as always, were very polite and helpful and trying hard to make up for errors that were not their fault."
Cons: "My flight was 4 hours late taking off, which was blamed on weather amass although I fond this questionable after reviewing weather in the areaspam involved, I'll give them that. My flight on the way back was over 4 hours delayed for no reason that I could glean from speaking with representatives. We got no advanced notice even though the plane had not yet left a destination around 4 hours away. We were told a plane was coming from another airport and would be there by 6. The plane did not arrive until 9. No explanation. No compensation. Nothing."

Cons: "There is no courtesy beverage on board."

Cons: "Departure delay was too long on board"

Pros: "Traveled with a special needs child and they allowed us to preboard."
Cons: "Uncomfortable seats, small trays, charge for everything."

Pros: "Same as above comment"

Cons: "Plane was very uncomfortable."

Pros: "the animal pictures on wing and tail"
Cons: "website unclear, necessities,(ie. seat,luggage) charged for AFTER fare paid unclean plane"

Cons: "All the extra expenses for seats, baggage, ect."

Cons: "Please see above, minus claustrophobic passenger."

Pros: "Airline had early boarding and early departure and arrival! Made going to my Daughters wedding a great sign of things to come! Thanks Frontier"

Pros: "I got what I paid for. Except baggage. I paid for that on top of the total. The staff was great, though -- no complaints about service."
Cons: "The chairs were uncomfortable and the seat-back tables are unusable."

Pros: "Bot"
Cons: "Had 1- carry on and they charged 45.00 at the gate to check no mention prior"

Cons: "to expensive to cary on a bag."

Cons: "i hate paying $ 45 for a carry on each way i wasn't aware of it before hand when i booked on line."

Pros: "Pilots"
Cons: "Service is very poor"

Cons: "Flight was overbooked and we had to wait for volunteers to take another flight before we could board. This was the most uncomfortable plane I've ever been on. No leg room, no cussion to the seat, seats don't lean back, tray table is tiny. The was an overnight flight and the seats didn't even lean back an inch or 2? Ridiculous, no sleep, and I was sitting next to someone I know."

Cons: "Delayed"

Pros: "Flights were on time. Cheap tickets. Crew was great, All the details of free personal item and additional cost for carryon, checkin baggage are all provided on the frontier website.We purchased 1 checkin baggage for 3 people while checking in online for better price during our trip. We can carry upto 50 pounds. Overall had pleasant experience."
Cons: "Food options can be better in flight. Good options for beverages but less options for food."

Cons: "$10 voucher was given out that didn't work. Spent $30 on bag."

Pros: "Easy boarding easy check in"
Cons: "Nothing that bad, chairs are maybe a bit thin but not terribly uncomfortable"

Read more about Delta
COVID-19 information

Safety measures for airlines flying from Boston to Washington Dulles Airport

Airlines flying from Boston to Washington Dulles Airport have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Boston to Washington Dulles Airport

Mandatory masks

Masks required on board, masks provided on flights from Boston to Washington Dulles Airport

Social distancing seating

Middle seats unavailable to book on flights from Boston to Washington Dulles Airport

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Boston to Washington Dulles Airport

Book cheap flights from Boston to Washington Dulles Airport

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