Find Cheap Flights from London Heathrow to Washington (LHR - WAS)

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Good to Know

Low Season:
February
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
18%
expected price increase
Average Price:
$919
(avg. price over the last 2 weeks)
Good Deal:
$747
or less (round trip)

When to Book Flights from London Heathrow to Washington

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 $747 or less.
The cheapest flight from London Heathrow to Washington 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 June, July and August. The cheapest month to fly is February.
Morning departure is around 15% 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 London Heathrow to Washington Flights

How long does a flight from London Heathrow to Washington take?
An average nonstop flight takes 8h 00m, covering a distance of 3653 miles.
How many flights are there between London Heathrow and Washington?
There are 485 (nonstop) flights between London Heathrow and Washington per week, averaging 69 per day.
Which airlines provide the cheapest flights from London Heathrow to Washington?
In the past 3 days, the cheapest round-trip tickets were found on United ($562), KLM ($570) and Multiple Airlines ($571).
Do I need a passport to fly between London Heathrow and Washington?
Yes.
Which airlines fly most frequently between London Heathrow and Washington?
American Airlines (7 times daily), Finnair (7 times daily), Iberia (7 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly London Heathrow to Washington?
For London Heathrow to Washington, Saturday is the cheapest day to fly on average and Friday is the most expensive. Flying from Washington back to London Heathrow, the best deals are generally found on Monday, with Thursday being the most expensive.

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

Airports
Origin
London
$562
only
$562
Destination
Washington
$562
only
$562
$588
only
$588
Sat, May 12
LHR
IAD
18h 21m
Sun, May 13
IAD
LHR
7h 25m
Trip: 2 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 84 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LHR
IAD
Good 7.6

The crew was excellent, very polite and professional.

In row 21, the aisle seat had a side table that was too flimsy (imposible to put a drink on it), and the entertainment system was broken.The crew was very nice and apologetic, and did give me a $150 voucher, but that was not satisfactory given that it’s extremely unlikely I will us United again.

LHR
IAD
Okay 5.0

The flight had no delays and boarding and flight went smoothly.

The crew were not very polite and in some instances rude.

LHR
IAD
Excellent 9.0

Free paid attention to details. I was given a vegetarian snack when the one provided had run out.

Could not book a seat next to my wife and I had tried weeks before.

LHR
IAD
Excellent 10.0

Meal, snack, water and a glass of wine...the entertainment monitor functioned...brought my own ear phones but airline offered them...lotion in the toilet...friendly service...the small comforts make a HUGE difference...not being nickel and dimmed to death...really MATTERS...especially when you are crammed in.

It is difficult to sit for 7+ hours in such tight quarters...but...for the price...I'd do it again. Also I had very considerate seat mates.

LHR
IAD
Good 7.3

The crew were excellent and receptive to needs on the flight.

Baggage Claim was a nightmare. I did not receive a baggage ticket when I checked my bag in London. Part of that is my fault. I should have made sure I had one. It took an extra long time to get my bag. Everyone else had left the area from my flight and I approached the counter. The attendant at the counter was rude. She said she couldn't help me unless I had the baggage claim ticket. Which I get that, but it all comes down to how she said it to me. She went over to the carousel and said that my flights bags were still going around and at that time I saw my bag. I said there it is to her and she responds, well you can go get it yourself then. Just completely rude. It all came down to how she responded to me. I was freaking out at the prospect of my bag being lost and she responded as clipped and uncompassionately as possible.

Mon, Apr 2
LHR
IAD
23h 45m
Mon, Apr 9
IAD
LHR
10h 20m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1756 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
DMM
AMS
Okay 5.6

Tiny old cramped plane.

PTY
AMS
Good 6.3

KLM crews look unhappy with their work. Everything they do is a favor not duty.

AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

AMS
DTW
Mediocre 2.0

Amesterdam airport employee was really rude

LAX
AMS
Mediocre 2.0

My bagage broke

I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it

Wed, Mar 21
LHR
IAD
12h 20m
Sun, Mar 25
IAD
LHR
7h 25m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
LHR
DCA
27h 10m
Mon, Jun 4
DCA
LHR
11h 20m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 15476 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
ZRH
LHR
Excellent 10.0

Flight was onetime, food on the flight was for purchase but it was vert nice, boarding was onetime and smooth.

LHR
SJC
Excellent 9.6

The service was the best you could ask for

NO WIFI!!!

MAD
LHR
Excellent 10.0

I have to rate British Airways as a 10 out of 10 in almost all categories...comfort of the plane, food and service, boarding, notifications, crew, etc. In particular, the long haul flight from London to Seattle everything was truly top notch!

Their baggage handlers damaged several parts on my checked-in luggage...three zipper pulls and one clasp. What are they doing with the bags? How can they damage so many things in one fell swoop? This is a good quality Atlantic suitcase. Also, on the short flights, in this case Madrid to London, they are now charging for EVERYTHING...even water and coffee. They said it was a new policy as of 1/1/2018.

LHR
BWI
Okay 4.0

Quick boarding

Service was poor, flight attendants were rude.

LHR
MIA
Excellent 9.6

Nice new plane, great flight staff, great entertainment

Checking in at the gate took a lot of time and no food or bathrooms available

Tue, Feb 27
LHR
IAD
25h 10m
Sat, Mar 3
IAD
LHR
7h 10m
Trip: 5 days
9.1ExcellentShow reviews
Overall 9.1 Excellent
Based on 6 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
BEY
FRA
Good 7.0

Seating, cleanliness, crew courteousy, entertainment.

Boarding process unclear, poor announcement, and messy. No wifi, choice and quality of food. Entertainment was erratic at times.

FRA
SFO
Good 7.0

See above. The same applies.

See above. The same applies.

CDG
FRA
Mediocre 3.3

Flight was delayed twice. 3 hour trip took 15 hours.

KBP
FRA
Excellent 10.0

The price was fair and updated information on flights were sent to my phone.

FRA
YVR
Good 6.0

Food is provided

Delayed 6 hours on the plane

Tue, Apr 10
LHR
IAD
10h 45m
Fri, Apr 20
IAD
LHR
9h 50m
Trip: 11 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 4256 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
SNN
LHR
Excellent 8.3

Nice seats food was decent crew excellent

Not enough room

DUB
LHR
Excellent 8.0

Could not check in on-line from Dublin on either Air canada or Aer Linguis websites. Time to sort out this long-standing problem

YYZ
DUB
Excellent 8.3

I flew overnight from Toronto, Canada to Dublin and had a relatively pleasant experience. The food and drink trolleys came by quite quickly and frequently, and the food exceeded my expectations. The crew was friendly, for the most part. Boarding certainly could've been smoother... But overall, I'd fly Aer Lingus again for an overseas trip.

LHR
DUB
Excellent 8.0

Staff and service

YYZ
DUB
Mediocre 2.0

Being charged $100 each way for checked baggage, no where on my itenerary did it mention that

Sat, Jun 16
LHR
DCA
13h 11m
Sun, Jun 17
DCA
LHR
10h 33m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28416 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
IND
LAX
Excellent 10.0

The staff

The snack selection and lack of entertainment

CLT
CLE
Okay 5.2

Plane was delayed 1.5 hours. Rental Car reservation was at a location 30 miles from the airport, not the airport rental location. Had to transfer reservations which cost an extra $30...

SYD
LAX
Excellent 9.0

Premium economy is the way to go for a long haul flight. We were comfortable and able to get some sleep.

The crew on the way to Sydney was a little more present. There was always someone milling in the galley between the business class and premium economy cabin. The crew returning came through the cabin often and were attentive if you asked for them but you had to seek them out.

BWI
ORD
Excellent 8.6

Nothing special

BWI check-in crew is not friendly, not related to Japan Airline.

ORD
LAX
Okay 4.0

Packed like sardines; the seats are getting narrower and the seat pockets are ridiculously small.

Thu, Jul 19
LHR
IAD
11h 20m
Tue, Jul 24
IAD
LHR
10h 10m
Trip: 6 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 6711 reviews
Overall
7.6
Boarding
7.3
Comfort
7.4
Crew
8.1
Entertainment
7.7
Food
6.3
BRU
KEF
Excellent 8.0

Everything went okay for us on this flight. In the future, I will suggest to my wife, who books air travel for us to read the fine print. The cost to check a bag was $100.00 which would have run us $300.00 for the trip: Boston to Brussels with a layover in Reykjavik, but on the return Brussels to Reykjavik with four days in Iceland and the return to Boston, so there goes the cheap flight! I did enjoy the in-flight movie and a documentary on the return trip as well.

My own earphones on the flight from Brussels to Iceland did not work. I could not plug them into the system.

ORY
KEF
Okay 4.0

They were helpful and let me check my boulder pad as sports equipment for free on the flight to paris.

DEN
KEF
Okay 5.6

Entertainment...

Had a tray full of trash most of the way.. don’t they sell trash bags in Iceland?

BOS
KEF
Good 7.6

They provided a pillow and blanket which was very nice, and the crew were helpful in finding space for items during take-off and landing. The boarding and exiting were fairly quick.

Everything on board costs extra, including basic drinks and snacks, but that's to be expected on cheaper flights. I assumed that the inflight movies cost money as well, although I didn't watch any because I didn't have headphones.

ORD
KEF
Good 7.3

Friendly staff Good entertainment options USB at every seat

Food options very expensive

Fri, Aug 31
LHR
DCA
12h 27m
Mon, Sep 3
DCA
LHR
15h 10m
Trip: 4 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 1065 reviews
Overall
8.1
Boarding
8.2
Comfort
7.7
Crew
8.5
Entertainment
8.0
Food
7.7
LAX
BNE
Good 7.0

I never expect airline food to be any good but I’m always hoping it’s edible. This was not the case, as the egg breakfast made me physically ill.

MEL
AKL
Good 6.3

Great crew, easy boarding, comfortable enough flight

Could have used a charger for electronics, especially because we were expected to use our own device for entertainment. Didn't order food, but didn't look digestible

BNE
LAX
Excellent 10.0

I loved how the airline crew were very accommodating. This was an awesome experience. A+++

I have no complaints.

MCO
LGW
Mediocre 2.0

My flight was cancelled due to technical problems! Hope to be on another flight today as I missed my connecting flights too!!

SYD
LAX
Good 7.3

Nothing really!

I was coming from Sydney and I have to hurry up to take the other fly to Newark and didn’t have time to buy for nothing to eat but I was very surprised they didn’t offer me anything on the plane and when I ask they I have buy it online and didn’t have many choices anyway, I very disappointed with this fly.

Tue, Jul 3
LHR
IAD
12h 00m
Tue, Jul 17
IAD
LHR
10h 20m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 19
LHR
DCA
28h 30m
Mon, May 21
DCA
LHR
12h 35m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 15476 reviews
Overall
7.5
Boarding
7.6
Comfort
7.2
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
IAD
Excellent 10.0

Wonderful flight attendants , smooth flight with excellent food , refreshments and entertainment. Thank you so very much Keep up this excellent service

Nothing

LHR
MIA
Excellent 9.6

Nice new plane, great flight staff, great entertainment

Checking in at the gate took a lot of time and no food or bathrooms available

LHR
SJC
Excellent 9.6

The service was the best you could ask for

NO WIFI!!!

LHR
ORD
Excellent 9.3

I liked that the flight crew was super nice and helpful

It was a bit crammed

LHR
BWI
Okay 4.0

Quick boarding

Service was poor, flight attendants were rude.

Sun, May 6
LHR
IAD
8h 00m
Thu, May 17
IAD
LHR
9h 30m
Trip: 12 days
9.1ExcellentShow reviews
Overall 9.1 Excellent
Based on 6 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
MUC
CLT
Excellent 10.0

On time - although a long flight I didn’t see the time go by

DEN
FRA
Good 7.0

Big plane, captain communicated our flight well.

Flight personelle were not very friendly, and as I am not a great flier and was making my first oveseas trip I was a bit disappointed they were so curt.

FRA
BOM
Excellent 8.6

Comfortable seats. On-time flight.

Entertainment system difficult to use. Vegetarian food was mediocre at best.

KBP
FRA
Excellent 10.0

The price was fair and updated information on flights were sent to my phone.

LHR
IAD
Excellent 10.0

Staff/stewards were very upbeat and pleasant, professional and were perfect at looking after very tired customers (at least for me).

Fri, Apr 13
LHR
IAD
10h 45m
Sat, Apr 28
IAD
LHR
10h 30m
Trip: 16 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 4256 reviews
Overall
7.6
Boarding
7.7
Comfort
7.3
Crew
8.0
Entertainment
7.0
Food
6.9
LHR
DUB
Excellent 8.0

Staff and service

DUB
LHR
Excellent 8.0

Could not check in on-line from Dublin on either Air canada or Aer Linguis websites. Time to sort out this long-standing problem

YYZ
DUB
Excellent 8.3

I flew overnight from Toronto, Canada to Dublin and had a relatively pleasant experience. The food and drink trolleys came by quite quickly and frequently, and the food exceeded my expectations. The crew was friendly, for the most part. Boarding certainly could've been smoother... But overall, I'd fly Aer Lingus again for an overseas trip.

DUB
YYZ
Okay 4.0

Having had bad experiences with Aer Lingus before, I was hesitant to book with Aer Lingus again. But sadly, I was booking this flight last minute and had no other option. The route was Dublin to Calgary, via Toronto. I left myself plenty of time im Toronto to clear customs as I know it can take a while. The day of, the flight ended up being 1.5 hours longer than usual due to headwinds, leaving me with only 2.5 hours in Toronto. I ended up waiting 2 hours and 15 minutes for my bag and missing my connecting flight (my sister who was also on the same flight received hers in 30 mins and made the flight). Westjet was wonderful and put me on a later flight but Aer Lingus didn't have any assistance for me.

Aer Lingus lost my sister's luggage going to Ireland and never contacted my sister once the luggage was found. She only received it the day we flew back to Calgary. Poor customer service when inquiring about the bag, no compensation for necessities purchased.

DUB
GVA
Good 6.0

NO COMPLIMENTARY WATER OR COFFEE. SEATS larger and MORE COMFORTABLE

Mon, Jun 11
LHR
IAD
11h 25m
Thu, Jun 14
IAD
LHR
9h 30m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 29
LHR
IAD
12h 00m
Thu, Apr 12
IAD
LHR
18h 55m
Trip: 15 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1756 reviews
Overall
8.0
Boarding
7.9
Comfort
7.7
Crew
8.4
Entertainment
7.1
Food
7.4
LAX
AMS
Mediocre 2.0

My bagage broke

I paid extra fee for extra bagage which was tv and i paid insurance my tv broke and no one responces for it

AMS
NCL
Good 7.6

Pretty basic one hour flight so there's not much to complain about or praise about. I got some sleep which was good.

The crew had their general Dutch aloofness on form. Chatted to one of the stewardesses in Dutch up until she saw I had a British passport then she decided she could only speak English to me.

DMM
AMS
Okay 5.6

Tiny old cramped plane.

BCN
AMS
Excellent 9.3

The food was excelent

I have to pay to pay a little more confort

AMS
LAX
Okay 4.0

The cabin crew were pretty good. That's about all that was good.

I paid almost $400 for upgraded seats. When I got to the airport-- no seats-- both ways!! i didn't even have regular seat assignments. I had to choose from the last few seats available. The ticket agent, the gate agent and the cabin crew all did nothing to make up for the fact that their system screwed up and stuck me in a cramped coach seat in the back of the plane for 11 hours-- TWICE! Beyond that, KLM must have one of the oldest fleets in the sky. Both ways LAX->AMS->LAX, I was on a 30-35 year old 747 with no wifi, no power and a ten-year-old entertainment system. Never again.

Wed, Mar 21
LHR
DCA
12h 48m
Sat, Mar 31
DCA
LHR
9h 35m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 7
LHR
IAD
28h 25m
Sat, Mar 17
IAD
LHR
33h 55m
Trip: 10 days
9.1ExcellentShow reviews
Overall 9.1 Excellent
Based on 6 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
KBP
FRA
Excellent 10.0

The price was fair and updated information on flights were sent to my phone.

FCO
FRA
Good 6.0

Food is provided

Delayed 6 hours on the plane

FRA
YVR
Good 6.0

Food is provided

Delayed 6 hours on the plane

DEN
FRA
Good 7.0

Big plane, captain communicated our flight well.

Flight personelle were not very friendly, and as I am not a great flier and was making my first oveseas trip I was a bit disappointed they were so curt.

FRA
BOM
Excellent 8.6

Comfortable seats. On-time flight.

Entertainment system difficult to use. Vegetarian food was mediocre at best.

Fri, Jul 6
LHR
DCA
16h 36m
Sat, Jul 7
DCA
LHR
18h 55m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
SJU
Excellent 10.0

EWR gate personnel tried to move things along. Seat was roomie and the flight attendants were pleasant. Flight was on time and landed early. No complaints.

Long TSA lines at EWR, but they moved.

ICN
SFO
Excellent 10.0

Food drinks and movies

The seats were comfortable and the plane clean. Take off and landing smooth .

DEN
DRO
Okay 5.2

They were able to get us on an earlier flight to shorten the 5 hour layover

IAD
MUC
Excellent 9.3

United was flexible when I had to change my reservation at the last minute. Good service on board.

LAX
HNL
Good 6.6

One crew is rude while I was ordering food while she is delivering the beverage after the order time. She simply told me they don't have what I want to order and leave. After 5 mins, I pushed the service button and nobody responded. After half hour, I ordered the food from another crew passed by. After I landed, they suppose to return my stroller set at the airplane gate. But they said it is not there, ask us to wait at the airport gate. We walked outside and they broadcasted again, I didn't hear very clearly but followed most parents to walk out. We wait at the baggage claim for almost 1 hour and finally, the baggage crew came back to the gate and found our stroller.

Wed, Aug 15
LHR
IAD
23h 55m
Tue, Aug 21
IAD
LHR
19h 18m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Feb 23
LHR
DCA
11h 47m
Fri, Mar 2
DCA
LHR
9h 33m
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 18874 reviews
Overall
8.2
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.7
FCO
FRA
Good 6.0

Food is provided

Delayed 6 hours on the plane

FRA
BOM
Excellent 8.6

Comfortable seats. On-time flight.

Entertainment system difficult to use. Vegetarian food was mediocre at best.

BEY
FRA
Good 7.0

Seating, cleanliness, crew courteousy, entertainment.

Boarding process unclear, poor announcement, and messy. No wifi, choice and quality of food. Entertainment was erratic at times.

FRA
SFO
Good 6.6

delayed boarding then waited three hours after we boarded for deicing. The piolet and crew did not update us. Made the flight very long.

FRA
YVR
Good 6.0

Food is provided

Delayed 6 hours on the plane

Show more results

London Heathrow to Washington Flight Information

Flights Arrive in Washington
Flights Depart from London Heathrow
Flight Price $562
Distance 3653 miles
Airlines United, KLM, British Airways, Lufthansa, Aer Lingus, American Airlines, Icelandair, Virgin Atlantic
*
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:

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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.

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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.