Find Cheap Flights from Boston to Washington Dulles Intl (BOS - IAD)

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Boston Logan Intl to Washington Dulles Intl Flight Information

Avg. Flight Duration 1h 35m
Flights Arrive in Washington Dulles Intl
Flights Depart from Boston Logan Intl
Flight Price $146
Distance 412 miles
Airlines United Airlines, Delta, Major Airline, Alaska Airlines

Good to Know

Low Season:
June
Best time to beat the crowds
1%
expected price decrease
High Season:
October
Most popular time to fly
1%
expected price increase
Average Price:
$237
(avg. price over the last 2 weeks)
Good Deal:
$181
or less (round trip)

When to Book Flights from Boston to Washington Dulles Intl

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $180 or less.
The cheapest flight from Boston to Washington Dulles Intl was found 87 days before departure, on average.
Book at least 3 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 June.
Morning departure is around 9% 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 Intl Flights

How long does a flight from Boston to Washington Dulles Intl take?
An average nonstop flight takes 1h 30m, covering a distance of 412 miles.
How many flights are there between Boston and Washington Dulles Intl?
There are 319 (nonstop) flights between Boston and Washington Dulles Intl per week, averaging 45 per day.
Which airlines provide the cheapest flights from Boston to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on United Airlines ($146), Delta ($155) and Multiple Airlines ($228).
Do I need a passport to fly between Boston and Washington Dulles Intl?
No.
Which airlines fly most frequently between Boston and Washington Dulles Intl?
United Airlines (9 times daily), Avianca (7 times daily), Lufthansa (6 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Boston to Washington Dulles Intl?
For Boston to Washington Dulles Intl, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Washington Dulles Intl back to Boston, the best deals are generally found on Tuesday, with Thursday being the most expensive.

Book cheap flights from Boston to Washington Dulles Intl (round-trip)

Airports
Origin
Boston
$146
only
$146
Destination
Washington
$146
only
$146
Tue, Apr 9
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 37m
Tue, Apr 16
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 32m
Trip: 8 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
BOS
IAD
Excellent 9.0

Pros: Good experience all around. The in-flight snack wasnt food allergy friendly but that's it. Good flight

Cons: Nothing really.

EWR
MUC
Excellent 10.0

Pros: Crew was friendly, food was delicious and flight was nice and smooth!

BOS
IAD
Mediocre 2.0

Pros: The fact that they eventually got us to the destination

Cons: Broken first plane. Delayd all other planes. Poor communication. Rude staff...

SKB
EWR
Excellent 8.5

Pros: The crew was friendly. After a week in the Caribbean sun, we were tired and had a low tolerance of everything.

CVG
IAH
Good 6.5

Pros: The crews did a great job!

Cons: Departures on both legs of the flight was delayed. First one 45 minutes and second one 20 minutes. The seat on the first flight was not the best and doesn’t seem to have a tall enough back section for taller people to rest their head.

Tue, Apr 9
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
4h 25m
Mon, Apr 22
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 39m
Trip: 14 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,528 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
LAS
SLC
Okay 5.0

Cons: At least free water

CDG
MSP
Excellent 8.3

Pros: Excellent cabin crew!

Cons: Boarding on time and announcing changes to the bowrding schedule instead of leaving customers guessing.

ORD
SEA
Excellent 8.6

Pros: Jeff was our flight attendant in first class. He is an excellent flight attendant. He has an amazing attitude and his manner made us feel as if we had been friends with him for years.

Cons: Passengers who pay retail for first class on domestic flights should get access to the Delta lounges even without the AE card. Other airlines do this, and we have come to expect it.

DTW
PVR
Excellent 10.0

Cons: It was perfect.

HNL
FUK
Good 7.3

Cons: Ran out of hot water on flight

Tue, Apr 30
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 37m
Tue, May 14
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 30m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 27
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
13h 20m
Tue, Apr 2
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
17h 16m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 8
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 34m
Wed, Apr 10
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 32m
Trip: 3 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
IAD
ZRH
Mediocre 2.0

Cons: If the flight had not been cancelled!

BOS
IAD
Excellent 10.0

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!

BRU
IAD
Good 7.6

Pros: They were OK

Cons: Terrible business class seating. You have to climb over your neighbor to go use the rest room.

BOS
IAD
Good 7.0

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

BOS
IAD
Excellent 9.0

Pros: Good experience all around. The in-flight snack wasnt food allergy friendly but that's it. Good flight

Cons: Nothing really.

Wed, May 8
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 37m
Sat, May 11
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 35m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 26
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
5h 01m
Mon, Apr 29
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 36m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,528 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
MSN
DTW
Excellent 8.6

Pros: The service on plane was great and so was the opportunity to check luggage, although I was happy I didn't have to.

Cons: Boarding from DTW to LAX, we had to stand for a long time on the jetway and it was really cold. It was the holding place after they checked my ticket. Otherwise, it was a great experience flying Delta.

SLC
SFO
Okay 5.6

Pros: Nice new seats

Cons: Was too warm inside the plane. Boarding address was mobbed and not very well managed

AUS
JFK
Good 6.8

Pros: Actual flight

Cons: Could have done without the almost 5 hour delay and no good options for alternative flights. We got in at 3am and it ruined our trip as we were exhausted for my daughter’s college visits.

DUB
JFK
Excellent 8.0

Cons: The seats are not very comfortable for such a long flight

LGA
MIA
Excellent 8.3

Pros: Crew was very attentive and friendly

Cons: Boarding could be better.

Tue, Apr 9
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 37m
Wed, Apr 10
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 32m
Trip: 2 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
PDX
IAH
Good 7.2

Cons: Nothing extra but great crew. The seats on the new plane barely recline so that’s a bit annoying but overall a good experience for an airline that doesn’t have the best reputation

EWR
BOS
Excellent 8.8

Pros: There was a wheel chair waiting for me at each gate, but in Newark, the attendant took my next boarding pass and dissapeared for about 15 minutes, and left me near the gangway. I was starting to panic. My travel companion was not happy and started to vent. It ewas quite tense for awhile.

Cons: The seats were cramped. I boarded first because of a broken ankle and a leg boot that turns into a child's car seat when I'm done with it. I was able to work the boot off when I had a leg cramp, but didn't have enough room to put it back on.

SIN
SFO
Excellent 8.3

Pros: Amenities. And courteous crew

Cons: Choice of Vegeterian options

LAX
ITO
Excellent 8.6

Cons: I would have liked if the crew kept us a bit more in the loop about what's going on - I took a Southwest flight earlier the same day, and the crew all seemed to be having a lot more fun than the crew on United. Which is more likely more a management/structure issue of United than the crew themselves

BOS
IAD
Mediocre 2.0

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.

Thu, May 23
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 33m
Sun, May 26
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 36m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Apr 28
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
3h 24m
Thu, May 2
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 30m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,528 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
BGR
LGA
Okay 4.0

Cons: If it had left on time Waited 3 hours at the airport

SJU
JFK
Good 6.0

Cons: Was refused to use the 1st clas restrooms but 10 minutes layer the flight attendant allowed an older gentleman and a lady to use them. I was in 10A with my service dog

MEX
DTW
Mediocre 2.0

Cons: Crew at the gate made us return to get our immigration forms without our boarding passes. This forced us to miss the connecting flight to detroit and delay our arrival by 7 hours. Awful experience.

ATL
BOS
Good 6.6

Pros: Delta in flight entertainment is great.

Cons: Always delayed.

LAS
SLC
Okay 5.0

Cons: At least free water

Wed, Apr 17
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 34m
Thu, Apr 25
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 39m
Trip: 9 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
BOS
IAD
Excellent 8.6

Pros: Everything except the wifi not working

Cons: The wifi not working

EWR
BOS
Excellent 8.8

Pros: There was a wheel chair waiting for me at each gate, but in Newark, the attendant took my next boarding pass and dissapeared for about 15 minutes, and left me near the gangway. I was starting to panic. My travel companion was not happy and started to vent. It ewas quite tense for awhile.

Cons: The seats were cramped. I boarded first because of a broken ankle and a leg boot that turns into a child's car seat when I'm done with it. I was able to work the boot off when I had a leg cramp, but didn't have enough room to put it back on.

ORD
MSP
Good 6.5

Cons: Transfer from international (T5) to T1 at O'Hare is very unpleasant..Generally O'Hare is a terrible airport.

BOS
IAD
Mediocre 2.0

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

Cons: Above

BOS
IAD
Good 6.0

Pros: I liked that the pilot kept the passengers updated when turbulance was to be expected.

Cons: Uncomfortable seating.

Mon, Jun 3
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 33m
Thu, Jun 6
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 39m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 30
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
20h 55m
Mon, Jun 3
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
16h 35m
Trip: 5 days
8.3ExcellentShow reviews
Overall 8.3 Excellent
Based on 26,165 reviews
Overall
8.5
Boarding
8.6
Comfort
8.3
Crew
8.8
Entertainment
7.9
Food
7.9
SEA
MSP
Okay 4.0

Cons: There was a lavatory directly across the aisle from me

SMF
SEA
Good 7.2

Cons: Bad coffee

SAN
HNL
Okay 4.6

Cons: The crew didn’t seem like they wanted to be there. The entire crew was standoffish. It seem like asking the anything was a huge ordeal they didn’t have time for but they’d do it bugredginly.

LIH
SEA
Okay 4.3

Cons: Politely asked boarding agent Michelle if my wife could be put in the isle because she's pregnant and needs to get up a lot. She rudely told me to sit down and she would call me up when she was ready. She serviced everybody else first, made us wait until last, and gave us two window seats instead.

LAX
SEA
Good 7.3

Cons: No other airline I flew to Germany with every charged extra for movies. That was really disappointing. We also didn't get our luggage until two days later (which happens, and I completely understand). But what I absolutely didn't understand was that nobody could ever tell me when we would get it.

Tue, Apr 30
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
4h 17m
Fri, May 3
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 36m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,528 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
BKK
ICN
Excellent 9.6

Cons: More comfortable seats!!!

JFK
SAN
Good 6.0

Pros: Very professional crew.

Cons: The plane was delayed 1 and a half hours getting out of the gate because of a malfunctioning fuel gauge

ATL
MSY
Okay 5.2

Cons: CheezIts were too salty. We had to sit on NO tarmac for over 10 minutes because a plane was stuck at our gate...several other gates empty - what's up?

MCO
LGA
Excellent 9.6

Pros: Accurate arrival time

ORD
SEA
Excellent 8.6

Pros: Jeff was our flight attendant in first class. He is an excellent flight attendant. He has an amazing attitude and his manner made us feel as if we had been friends with him for years.

Cons: Passengers who pay retail for first class on domestic flights should get access to the Delta lounges even without the AE card. Other airlines do this, and we have come to expect it.

Sun, Apr 21
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 34m
Mon, Apr 29
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 36m
Trip: 9 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
BOS
IAD
Good 7.3

Pros: The plane left on time and smooth transition on and off the plane.

Cons: N/A

BOS
IAD
Mediocre 2.3

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

RIC
ORD
Excellent 9.2

Pros: ANA Chicago to Tokyo was so awesome. Crew is super courteous and polite. Food is good even economy class. Good headphones were already in front of the seats. ANA is the one that you want to fly!

BOS
IAD
Good 7.0

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

BOS
IAD
Mediocre 2.0

Pros: The fact that they eventually got us to the destination

Cons: Broken first plane. Delayd all other planes. Poor communication. Rude staff...

Wed, May 1
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
4h 59m
Sun, May 5
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 31m
Trip: 5 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,528 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
LAS
SLC
Okay 5.0

Cons: At least free water

ORD
SEA
Excellent 8.6

Pros: Jeff was our flight attendant in first class. He is an excellent flight attendant. He has an amazing attitude and his manner made us feel as if we had been friends with him for years.

Cons: Passengers who pay retail for first class on domestic flights should get access to the Delta lounges even without the AE card. Other airlines do this, and we have come to expect it.

MSP
ATL
Excellent 8.0

Pros: Attendant was friendly and efficient.

Cons: No beverages or snacks.

SJD
ATL
Excellent 8.3

Pros: The crew very nice and helpful

BRU
JFK
Excellent 8.0

Pros: great flight attendant

Thu, Jun 20
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 30m
Tue, Jun 25
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
5h 24m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Apr 22
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 34m
Mon, Apr 29
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 36m
Trip: 8 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
EWR
BOS
Excellent 8.8

Pros: There was a wheel chair waiting for me at each gate, but in Newark, the attendant took my next boarding pass and dissapeared for about 15 minutes, and left me near the gangway. I was starting to panic. My travel companion was not happy and started to vent. It ewas quite tense for awhile.

Cons: The seats were cramped. I boarded first because of a broken ankle and a leg boot that turns into a child's car seat when I'm done with it. I was able to work the boot off when I had a leg cramp, but didn't have enough room to put it back on.

IAD
IAH
Mediocre 3.0

Pros: Landed on time

Cons: Staff. Boarding. Fellow Passengers.

BOS
IAD
Mediocre 2.0

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

Cons: Above

BOS
IAD
Good 6.0

Pros: I liked that the pilot kept the passengers updated when turbulance was to be expected.

Cons: Uncomfortable seating.

BOS
IAD
Good 7.3

Cons: The food was terrible.

Thu, May 2
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
3h 26m
Sun, May 5
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 31m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 23,528 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
DEN
SEA
Good 7.0

Pros: On time flight, bag made it, great price, can’t complain.

Cons: Seat pretty tight for an average size adult man. No inflight phone charger.

BIL
MSP
Excellent 9.6

Pros: The crew was helpful and seemed genuinely nice. The seats felt a little narrow

BKK
ICN
Excellent 9.6

Cons: More comfortable seats!!!

JFK
MEX
Excellent 10.0

Pros: The flight was on time at departure and 30 minutes on arrival.

Cons: Since I got a good deal on the ticket, my boarding zone was “Basic”. That kind of sucked, but I still could fit bag in the airplane so it all worked out

JFK
SAN
Good 6.0

Pros: Very professional crew.

Cons: The plane was delayed 1 and a half hours getting out of the gate because of a malfunctioning fuel gauge

Tue, Apr 23
BOS
Boston Logan Intl
IAD
Washington Dulles Intl
1h 42m
Mon, Apr 29
IAD
Washington Dulles Intl
BOS
Boston Logan Intl
1h 36m
Trip: 7 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
BOS
IAD
Good 6.0

Pros: Comfortable chairs

Cons: There are no TV's and there are no snacks

LAX
ITO
Excellent 8.6

Cons: I would have liked if the crew kept us a bit more in the loop about what's going on - I took a Southwest flight earlier the same day, and the crew all seemed to be having a lot more fun than the crew on United. Which is more likely more a management/structure issue of United than the crew themselves

IAD
IAH
Mediocre 3.0

Pros: Landed on time

Cons: Staff. Boarding. Fellow Passengers.

STI
EWR
Good 6.4

Pros: The crew, and boarding process was good.

Cons: The snacks are really bad.

EWR
MUC
Excellent 10.0

Pros: Crew was friendly, food was delicious and flight was nice and smooth!

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.