Find Cheap Flights from Washington Dulles Intl to London Heathrow (IAD - LHR)

Search hundreds of travel sites at once for deals on flights to London Heathrow

Depart
Return
Any month
Compare vs. KAYAK |

Washington Dulles Intl to London Heathrow Flight Information

Avg. Flight Duration 7h 49m
Flights Arrive in London Heathrow
Flights Depart from Washington Dulles Intl
Flight Price $446
Distance 3,667 miles
Airlines Icelandair, Virgin Atlantic, Delta, Austrian Airlines, Air Canada, Lufthansa, KLM, British Airways, Brussels Airlines

Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
15%
expected price increase
Average Price:
$752
(avg. price over the last 2 weeks)
Good Deal:
$556
or less (round trip)

When to Book Flights from Washington Dulles Intl to London Heathrow

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 $555 or less.
The cheapest flight from Washington Dulles Intl to London Heathrow was found 72 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 June, July and August. The cheapest month to fly is January.
Morning departure is around 5% 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 Washington Dulles Intl to London Heathrow Flights

How long does a flight from Washington Dulles Intl to London Heathrow take?
An average nonstop flight takes 7h 00m, covering a distance of 3667 miles.
How many flights are there between Washington Dulles Intl and London Heathrow?
There are 647 (nonstop) flights between Washington Dulles Intl and London Heathrow per week, averaging 89 per day.
Which airlines provide the cheapest flights from Washington Dulles Intl to London Heathrow?
In the past 3 days, the cheapest round-trip tickets were found on Icelandair ($446), Virgin Atlantic ($464) and Delta ($473).
Do I need a passport to fly between Washington Dulles Intl and London Heathrow?
Yes.
Which airlines fly most frequently between Washington Dulles Intl and London Heathrow?
Air Canada (9 times daily), Austrian Airlines (9 times daily), United Airlines (9 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Washington Dulles Intl to London Heathrow?
For Washington Dulles Intl to London Heathrow, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from London Heathrow back to Washington Dulles Intl, the best deals are generally found on Saturday, with Wednesday being the most expensive.

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

Airports
Origin
Washington
$446
only
$446
Destination
London
$446
only
$446
Wed, May 8
IAD
Washington Dulles Intl
LHR
London Heathrow
15h 00m
Fri, May 17
LHR
London Heathrow
IAD
Washington Dulles Intl
11h 00m
Trip: 10 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 8,201 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
CDG
KEF
Excellent 8.6

Pros: The flights were both on time and the food and entertainment were excellent.

Cons: The boarding process in Paris and in Reykjavik was crowded and very chaotic.....they do not separate and board the Saga Class passengers first, it's just one big line and "free for all".

YYZ
KEF
Excellent 9.3

Pros: Crew was really friendly, we had the seats behind first class so we had a ton of legroom. I would definitely fly Iceland air.

Cons: We had a 5 hour flight and they didnt serve snacks of food. The flight didnt include bags. 2 bags cost $160

KEF
JFK
Excellent 9.3

Cons: The IcelandAir staff were very friendly and the seats were comfortable. I will definitely be traveling with IcelandAir again.

ZRH
KEF
Excellent 10.0

Pros: Threat crew. Nice. Professional. Deal with passengers well when they tried to get there full luggage on board when it was not ok to do so.

Cons: Nothing

SFO
KEF
Excellent 9.6

Pros: Great leg space and friendly staff.

Cons: Nothing

Mon, Apr 22
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 25m
Fri, May 3
LHR
London Heathrow
IAD
Washington Dulles Intl
8h 25m
Trip: 12 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 25 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.7
EWR
LHR
Mediocre 2.0

Pros: My flight was canceled and Virgin Atlantic gave us a free room in the hotel Ramada. My next flight was at 18:55 and I asked Virgin Atlantic agent am I allowed to stay in the room until time for my flight comes, he confirmed yes and gave me breakfast, lunch, and dinner voucher. However, next day around 12 I got call from Front Desk that I have to leave my room right away because it's time to chack out and If I want to stay longer I have to pay. I called Virgin Atlantic agancy again and the agent run my information and said to me I can stayin the room longer. After that I called front desk to confirm that but they said they didn't hear anything from Virgin Atlantic and I have to leave the room by 1pm. All of this was really unpleasant!

Cons: I didn't like anything. I didn't like the communication between Virgin Atlantic with travelers, communication between Virgin Atlantic and hotel Ramada. Everything was really poorly.

LHR
JFK
Excellent 10.0

Pros: Service, pilot updates, and seating were all great!

LAX
MEL
Excellent 10.0

Pros: Super friendly and helpful crew, food etc was fantastic very enjoyable flight. Thank you

LHR
LAX
Excellent 9.0

Cons: Bathrooms needed more cleaning mid-flight.

LHR
JNB
Excellent 8.0

Pros: Good collection of movies

Cons: To pay for luggage for international flights while on their website it says i dont have to pay if im going to South Africa. The food was not so great.

Wed, Apr 17
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 25m
Thu, Apr 25
LHR
London Heathrow
IAD
Washington Dulles Intl
14h 20m
Trip: 9 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 2 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
PVR
ATL
Excellent 8.0

Cons: Boarding was a little confusing with seats not being assigned ahead of time

BNA
DTW
Good 7.0

Pros: Getting to my destination.

Cons: Leg room, more room for carry on bags, coats, etc.

IAD
LHR
Excellent 8.0

Pros: The flight was smooth and the food selection was surprising delicious. The crew was very attentive.

Cons: The leg room was much less than the last time I flew Virgin (booked via Delta) and made for an uncomfortable trip. Could not sleep as a result. If you're tall like me you'll need to book a higher seating category.

JFK
DFW
Excellent 9.0

Pros: Smooth and comfortable flight.

ATL
PWM
Excellent 8.4

Cons: Plane was way too hot and stuffy, wasn't until about 20 min into flight before started to cool down.

Tue, Feb 26
IAD
Washington Dulles Intl
LHR
London Heathrow
15h 10m
Thu, Feb 28
LHR
London Heathrow
IAD
Washington Dulles Intl
14h 55m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Mar 3
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 10m
Tue, Mar 5
LHR
London Heathrow
IAD
Washington Dulles Intl
13h 55m
Trip: 3 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 12 reviews
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.3
Food
7.5
IAD
LHR
Good 6.0

Cons: Seats in economy class were crammed with next to no leg room

FRA
INN
Excellent 8.6

Pros: The wafer bar. Pilot had a good landing in high winds and snow.

Cons: Nothing to complain.

IAD
LHR
Okay 5.0

Cons: Very unprofessional handling of mechanical failure by United. Gave us a lowsy $10 coupon and not even Club access.

NUE
ZRH
Good 7.3

Pros: Even on this short 1-hour prop flight they do have average service and pass out Swiss chocolate.

VIE
BKK
Good 7.6

Cons: Menu was poor

Tue, Apr 9
IAD
Washington Dulles Intl
LHR
London Heathrow
17h 29m
Thu, Apr 18
LHR
London Heathrow
IAD
Washington Dulles Intl
11h 05m
Trip: 10 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 23,570 reviews
Overall
7.2
Boarding
7.4
Comfort
7.1
Crew
7.7
Entertainment
6.9
Food
6.5
YYZ
BOG
Okay 4.3

Pros: The people at the gate. Excellent the girl from El Salvador

Cons: The worst, the attitude of a crew member named Andrew.

LAX
YUL
Okay 5.3

Pros: Fair space

Cons: Head steward with an attitude

HNL
YVR
Excellent 8.6

Pros: Crew, seats and entertainment. Unfortunately a rude passenger in front that put their seat back too far and refused to compromise so didn’t have much leg room over a 6 hour flight.

Cons: Ran out of half the food options halfway down the plane.

YUL
DFW
Excellent 8.8

Pros: Boarding was smooth

Cons: More entertainment choices

LHR
YOW
Excellent 8.0

Cons: Not enough movie options

Tue, May 21
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 40m
Tue, Jun 4
LHR
London Heathrow
IAD
Washington Dulles Intl
15h 30m
Trip: 15 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 4 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
BRE
MUC
Excellent 10.0

Pros: Good service for the price

Cons: More legroom

SOF
MUC
Excellent 10.0

Pros: The crew

Cons: The sandwiches

MUC
ORD
Excellent 8.0

Pros: Service

SEA
FRA
Good 7.0

Cons: The flight itself was good. But the connection wasn't. For this schedule, it is next to impossible to make the connection. The gate that the SEA to FRA flighy arrives at is at least half an hour away from the gate that SEA to MAA leaves from and there is a security checkpoint in between.

DEN
FRA
Good 6.6

Pros: Good leg room in aircraft and comfortable seating.

Cons: My checkedin baggage did not reach the final destination and was delayed by 24 hours. Further, when my baggage did reach, one suitcase was damaged. Did not expect this from Luftansa.

Mon, Aug 19
IAD
Washington Dulles Intl
LHR
London Heathrow
10h 15m
Thu, Aug 29
LHR
London Heathrow
IAD
Washington Dulles Intl
12h 00m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 2,776 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.4
Entertainment
7.2
Food
7.5
LHR
AMS
Excellent 8.0

Pros: Crew was nice and efficient

Cons: Economy seats don’t recline enough.

TPE
AMS
Excellent 8.3

Cons: Larger meals.

VCE
AMS
Okay 5.0

Cons: At the check in they made me pay 50€ for my luggage. This is really upsetting because from Houston to Venice they didn't make me pay. Either the website wasn't transparent or the lady at the desk made a mistake. Very upsetting, one luggage should be included.

AMS
ATL
Excellent 10.0

Pros: Nice crew pilot food and beverage

Cons: No wifi

AMS
YYC
Excellent 8.0

Pros: Friendly and efficient crew. Flights were on time if not even early.

Tue, Feb 26
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 00m
Tue, Mar 5
LHR
London Heathrow
IAD
Washington Dulles Intl
8h 20m
Trip: 8 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 192 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
IAD
LHR
Excellent 8.3

Cons: Very cramped seating.

IAD
LHR
Mediocre 2.6

Pros: Polite crew.

Cons: No power outlets. TV video was shaky. The audio jack did not work. Flight was delayed.

IAD
LHR
Good 6.0

Pros: Seat fine

Cons: Bad that no entertainment system availavlace until after takeoff and way too early before landing. Too many announcements woke me up. Very sleep

IAD
LHR
Excellent 8.0

Pros: Boarding, crew and meals were good. Bedding was very nice.

Cons: Cabin was a tad warm and biz seat was broken. Flight crew was sympathetic.

IAD
LHR
Okay 5.3

Pros: Crew was friendly

Cons: Breakfast was ridiculous, just a small chocolate bar!!!

Mon, Jun 10
IAD
Washington Dulles Intl
LHR
London Heathrow
18h 25m
Wed, Jun 26
LHR
London Heathrow
IAD
Washington Dulles Intl
11h 05m
Trip: 17 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 2,031 reviews
Overall
7.1
Boarding
7.1
Comfort
7.0
Crew
7.6
Entertainment
6.4
Food
6.4
BRU
KBP
Excellent 10.0

Pros: Very good service! Friendly and happy staff!

Cons: The food; I didn't like the sandwich and the snacks

JFK
BRU
Mediocre 2.0

Pros: Nothing

Cons: Terrible. Long delays caused me to miss connecting flight and a wedding. Lufthansa decided 12 hours of my day and the missed ceremony was worth a 5 euro voucher... Never flying german again.

IAD
BRU
Excellent 8.0

Cons: The flight and its crew did well but I will NEVER use it again if it has to transit in Brussels. We were bussed to the T terminal ( ‘incidentally’ where were all the AFRICAN flights transit) were we had a 5 hour layover, which is fine with me, but the terminal has no restaurant or any decent stores.

JFK
BRU
Excellent 10.0

Pros: All was planned, no surprises, on time and no hassles

Cons: Keep it as it is. No need to fix what is not broken. Just reduce the very expensive prices that Brussels Airlines charge for its economy class tickets

JFK
BRU
Good 6.6

Pros: Attentive helpful and cheerful staff: on time

Cons: Food

Fri, May 3
IAD
Washington Dulles Intl
LHR
London Heathrow
14h 55m
Mon, May 6
LHR
London Heathrow
IAD
Washington Dulles Intl
11h 10m
Trip: 4 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 8,201 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
CPH
KEF
Excellent 9.0

Pros: The flight was smooth and on time. Crew was friendly and efficient.

Cons: A 3-hour flight followed by a five-hour flight isn’t super comfortable but without paying for first class, it was as good as it could be.

KEF
YYZ
Excellent 10.0

Pros: Everything.

Cons: Nothing

LGW
KEF
Excellent 10.0

Pros: The attendants are all nice and efficient!

KEF
ZRH
Excellent 10.0

Pros: Again, it was quick and easy. Nice staff.

Cons: The child who kicked the back of my seat for the flight.

KEF
GLA
Excellent 8.0

Pros: Good price point. Excellent crew. Entertainment with free movies and very nice travel info-logues on Iceland. Nice flight.

Cons: Reykjavik airport had bus to outside stairs boarding, but that's not the airline's fault.

Sun, Mar 10
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 10m
Mon, Mar 11
LHR
London Heathrow
IAD
Washington Dulles Intl
24h 20m
Trip: 1 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 12 reviews
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.3
Food
7.5
OSL
VIE
Excellent 10.0

Pros: The crew was helpful with tips for Vienna

JFK
VIE
Excellent 8.0

Pros: Good experience, service was good, and attendants were courteous

VIE
SOF
Excellent 10.0

Cons: Free wifi

IAD
LHR
Good 6.0

Cons: Seats in economy class were crammed with next to no leg room

VIE
FRA
Excellent 8.3

Pros: I like the food and servise

Tue, Apr 30
IAD
Washington Dulles Intl
LHR
London Heathrow
15h 00m
Tue, May 7
LHR
London Heathrow
IAD
Washington Dulles Intl
11h 00m
Trip: 8 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 8,201 reviews
Overall
7.5
Boarding
7.2
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.2
KEF
SEA
Good 7.3

Pros: The crew was very helpful and kind.

Cons: I wish there were more movies to choose from and a little more room in the seats.

CDG
KEF
Okay 5.0

Pros: It was cheap & they get there fast.

Cons: Where do I begin? First they gave me a dirty blanket to use. Next they do not give you any snacks. That might sound trivial but on an 8 hour flight every other airline I’ve ever flown with has offered their passengers SOMETHING. You do have the option of purchasing food but it’s expensive & it wouldn’t feed a preschooler. The crew...honestly they’re just not pleasant to talk to. I put on my call light to ask about purchasing (which means I’m spending money) ear buds & she made me wait another hour & a half. Not one single passenger I spoke to had anything nice to say about Iceland Air.

KEF
FRA
Excellent 8.3

Pros: Great crew, typical seats

Cons: Not having to pay for headphones on a long international flight

MSP
KEF
Okay 5.6

Pros: Very cramped flight.

Cons: Very cramped flight.

BOS
KEF
Excellent 10.0

Pros: Seats were comfortable and both flights were on time.....smooth rides!!

Mon, Mar 18
IAD
Washington Dulles Intl
LHR
London Heathrow
10h 50m
Fri, Mar 29
LHR
London Heathrow
IAD
Washington Dulles Intl
12h 10m
Trip: 12 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 23,570 reviews
Overall
7.2
Boarding
7.4
Comfort
7.1
Crew
7.7
Entertainment
6.9
Food
6.5
YOW
YYZ
Excellent 10.0

Pros: Quick flight. Dlient Service in check-in was excellent, she went the extra mile to change my return flight to a more reasonable time.

YOW
YXU
Excellent 10.0

Pros: Great staff!

Cons: Nothing

YUL
LAS
Mediocre 2.0

Pros: Did not board because you screwed up my reservation

Cons: Not screwing up my reservation!

YYZ
LAS
Mediocre 3.6

Pros: Crew was responsive

Cons: Late departure, sitting on the tarmack for hours, most uncomfortable seats

YYC
SFO
Mediocre 2.0

Cons: No good

Tue, Aug 6
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 25m
Wed, Aug 21
LHR
London Heathrow
IAD
Washington Dulles Intl
8h 25m
Trip: 16 days
8.5ExcellentShow reviews
Overall 8.5 Excellent
Based on 25 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.7
IAD
LHR
Mediocre 2.0

Pros: Nothing. The whole experience was horrible.

Cons: I didn't make it to Siem Reap because the first leg of the trip from IAD to London was cancelled by Virgin Atlantic after it was fully boarded. The excuse was that a flight attendant had food poisoning and was unable to fly and so the entire flight was cancelled. The Virgin team seemed unconcerned and showed NO sense of urgency to try and get people rebooked. Their solution was to rebook everyone on an evening flight the next day. If a passenger was only going to London, that was probably fine. But for people with connecting flights -- or like me with multiple connecting flights -- that wasn't acceptable.

IAD
LHR
Excellent 10.0

Pros: A smooth and on time - early actually - flight. So empty that I was able to lay down and sleep. All good!

IAD
LHR
Okay 4.0

Pros: Service

Cons: Seats in economy are way to small and very uncomfortable if tall. Too close to the seats in front of you. I was miserable all the way to London.

LHR
SEA
Excellent 9.0

Pros: Food and snacks!!!!!

LHR
MIA
Excellent 8.3

Pros: Crew were wonderful when I was nauseous from turbulence

Fri, May 24
IAD
Washington Dulles Intl
LHR
London Heathrow
12h 15m
Fri, May 31
LHR
London Heathrow
IAD
Washington Dulles Intl
13h 35m
Trip: 8 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 4 reviews
Overall
8.1
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.7
Food
7.7
IAD
FRA
Good 6.6

Cons: Better food/choice-make it on time....and its quite cold in the plane-not sure why.

ORD
FRA
Okay 4.0

Pros: Crew was wonderful very friendly

Cons: Room 9 hour flight and horrible seat. You guys should say before I buy how big seat are I could not even fit my underseat bag and be able to move , I would choose different way to purchase tickets next time to make sure I get any room to move hopefully sleep

SFO
MUC
Good 7.3

Pros: The Crew was very good. I was with my 84 year old father.And they handled his needs very well .

Cons: The food of course was sort of mediocre at breakfast. The eggs tasted like they were man made.oh well maybe that’s really typical. Otherwise all was fine.

MUC
IAD
Excellent 10.0

Pros: The plane, the crew

Cons: Some of the very nice German movies were shown only in German

BRE
MUC
Excellent 10.0

Pros: Good service for the price

Cons: More legroom

Wed, Jul 31
IAD
Washington Dulles Intl
LHR
London Heathrow
7h 25m
Wed, Aug 28
LHR
London Heathrow
IAD
Washington Dulles Intl
8h 10m
Trip: 29 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 192 reviews
Overall
7.4
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
6.9
Food
6.8
IAD
LHR
Excellent 10.0

Pros: Getting water offered frequently

IAD
LHR
Mediocre 3.0

Pros: Nothing

Cons: The flight was delayed 2 hours before takeoff. Then I missed my connection flight at LHR. Consequently I had to wait for 4 hours to catch filling flight form LHR to NCL. BA very poor service.

IAD
LHR
Mediocre 3.0

Cons: I had a problem with seating due to a medical condition and I wasn't relocated

IAD
LHR
Okay 4.6

Cons: Breakfast was pathetic

IAD
LHR
Good 6.0

Pros: I was the only on 3 row seats and slept 5 hours

Cons: My trip was longer than 15 hours. I bought it under 10 hours

Mon, Jul 15
IAD
Washington Dulles Intl
LHR
London Heathrow
15h 05m
Thu, Jul 25
LHR
London Heathrow
IAD
Washington Dulles Intl
12h 50m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jul 27
IAD
Washington Dulles Intl
LHR
London Heathrow
34h 20m
Thu, Aug 22
LHR
London Heathrow
IAD
Washington Dulles Intl
8h 25m
Trip: 27 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 12 reviews
Overall
8.1
Boarding
8.2
Comfort
7.9
Crew
8.5
Entertainment
7.3
Food
7.5
IAD
VIE
Excellent 10.0

Cons: Cold

IAD
LHR
Good 6.0

Cons: Seats in economy class were crammed with next to no leg room

SKP
VIE
Excellent 10.0

Pros: From start to finish, Sevdije was in great hands. She had to be in a wheelchair, and there were three connecting flights in countries where she doesn't speak the language. It could have been so complicated, and everyone made it SO EASY. She was all smiles when she arrived in Boston. THANK YOU!!!!!!

Cons: Nothing!

JFK
VIE
Good 6.3

Pros: Clean and new planes. On time.

Cons: On the transatlantic flight the crew was unattractive and somewhat rude. They skipped our entire row serving morning refreshments and then complained and tried to shame us all for calling them back. Food quality was on par with Alegent Airlines. We even got charged for one piece of checked luggage 46lb on a international flight. That was a first!!!

FRA
INN
Excellent 8.6

Pros: The wafer bar. Pilot had a good landing in high winds and snow.

Cons: Nothing to complain.

Fri, Aug 16
IAD
Washington Dulles Intl
LHR
London Heathrow
14h 40m
Sun, Sep 15
LHR
London Heathrow
IAD
Washington Dulles Intl
14h 20m
Trip: 31 days
8.8ExcellentShow reviews
Overall 8.8 Excellent
Based on 2 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.4
RDU
CLE
Mediocre 2.0

Pros: Very bad crew. Seats very uncomfortable

Cons: Crew could have been better

MSP
IAH
Okay 5.3

Cons: Old plane, long delay, sketchy WiFi.

SFO
SEA
Excellent 10.0

Cons: Great

MSP
AMS
Okay 5.0

Pros: Crew are not friendly and I didn't have proper food. I have not asked to choose meal. I thought I can tell in flight that I want veg meal.

Cons: Since rools are changing in international travel. You should inform the new tools to the customer.

SLC
BZN
Excellent 10.0

Pros: Crew was amazing and friendly. Flight was on time.

Cons: Na

Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
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.