$291 Find Cheap Flights from the United Kingdom to Washington

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KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington
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KAYAK's insights & trends for flights to Washington

Get data-powered insights and trends for flights to Washington to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Washington?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.
The cheapest ticket to Washington from the United Kingdom found in the last 72 hours was to Seattle, at $661 round-trip. The most popular route is London Heathrow Airport (LHR) to Seattle (SEA) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $661.

What is the cheapest day to fly to Washington?

The average price of all flights from the United Kingdom to Washington clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Washington is Wednesday where round-trip tickets can be as cheap as $800. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,142 on average.

What is the cheapest month to fly from the United Kingdom to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United Kingdom to Washington, 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 the United Kingdom to Washington is February, when tickets cost $583 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $1,212 and $918 respectively.

What is the cheapest time of day to fly to Washington?

The average price for all round-trip flights from the United Kingdom to Washington depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Washington is generally in the afternoon, when round-trip flights cost $841 on average. Morning departures are around 4% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally at night, which is peak travel time and where the average cost of a ticket is $943.

How far in advance should I book a flight from the United Kingdom to Washington?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from the United Kingdom to Washington, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Which is the cheapest airport to fly into in Washington?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington is Seattle/Tacoma Intl Airport (SEA), with an average flight price of $807.

Good to know

Low season

January

High season

August

Cheapest flight

$291
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from London Luton Airport to Seattle

FAQs for booking flights from the United Kingdom to Washington

  • How does KAYAK find such low prices on flights from the United Kingdom to Washington?

    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 the United Kingdom to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from the United Kingdom to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United Kingdom to Washington 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 the United Kingdom to Washington?

    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 from the United Kingdom to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from the United Kingdom to Washington?

    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 from the United Kingdom to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from the United Kingdom to Washington

 
See real verified KAYAK customer reviews for airlines flying to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Washington. 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 the United Kingdom to Washington? 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
DeltaOverall score based on 7916 reviews
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
8.5Crew
Airline reviews

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

10.0 ExcellentGary, Apr 2025TPA - LAX
Read more Delta reviews

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Delta is a cut above the others in customer service.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

I love the free WiFi!! Crew was nice. Bathroom was decent. First time flying delta in a long time and I enjoyed it. Will definitely look into booking with Delta more but I think Delta is a little more expensive than the other airlines.

third trip overseas with delta recently where the TV did not work- not acceptable for a 8 hour flight! your food really has declined crew great and I am loyal to delta

Boarding in Amsterdam is always chaotic. KLM/ Delta has not streamlined or made it efficient as it was boarding in Detroit . The food was mediocre The crew was unfriendly and more focused on getting things done quickly rather than service with a smile .

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

The crew was very good. However, the equipment was a bit dated. Some of the electronics were not working. To top it, three bags didn’t arrive with me. Two of them were delivered a day later. I’m still waiting for the third bag, I was so looking forward to this virgin Atlantic flight, but, I am disappointed.

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Any sort of gluten free snack option would be nice

They lost my luggage and it didn’t get delivered until the next day.

Would have thought that they would gas up plane before everyone got on board

3 hours late. Not even water offered on a 2.25 hour flight.

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

American Airlines initially postponed the flight. Then they cancelled it an rescheduled us on a flight that would take over 24 hours with multiple stops. They then changed this flight to a reasonable alternative the next day which they later cancelled and replaced with a flight that would take off with an additional 16 hour delay. They blamed weather but I noticed (at 4am) that Delta had direct flights from Charlotte to Detroit. I went on line. Booked it and was in Detroit buy 9am. The interesting thing is they did a similar thing to a family member just 2 days earlier. I don't think I will fly American unless I have to.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

Flight got diverted because of an emergency and the crew were fantastic and probably saved that passenger’s life. While in emergency landing some measures could have been taken to prevent additional delays. In general not great experience with BA. I used to fly BA years ago all the time, very disappointed by the whole experience, seats were tight, bathrooms tight.

Business class area too small and chair and equipment not comfortable .

Book cheap flights from the United Kingdom to Washington

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Washington found on KAYAK in the last 72 hours.
4/28lun.
1 stopUnited Airlines
21h 11mLHR-SEA
5/13mar.
2 stopsUnited Airlines
21h 20mSEA-LHR
$434
4/28lun.
2 stopsUnited Airlines
18h 18mLHR-SEA
5/13mar.
2 stopsUnited Airlines
21h 20mSEA-LHR
$438
5/6mar.
1 stopIcelandair
13h 00mLGW-SEA
5/13mar.
1 stopIcelandair
32h 45mSEA-LGW
$488
5/6mar.
1 stopIcelandair
13h 00mLGW-SEA
5/12lun.
1 stopIcelandair
12h 00mSEA-LGW
$494
5/14mié.
1 stopBritish Airways
18h 44mLHR-SEA
5/21mié.
nonstopBritish Airways
9h 20mSEA-LHR
$605
5/14mié.
nonstopVirgin Atlantic
10h 15mLHR-SEA
5/22jue.
nonstopVirgin Atlantic
9h 55mSEA-LHR
$619
4/28lun.
1 stopVirgin Atlantic
32h 00mLHR-SEA
5/13mar.
nonstopVirgin Atlantic
9h 55mSEA-LHR
$623
4/28lun.
1 stopBritish Airways
18h 39mLHR-SEA
5/13mar.
nonstopBritish Airways
9h 20mSEA-LHR
$631
4/28lun.
1 stopDelta
14h 05mLHR-SEA
5/13mar.
1 stopDelta
16h 09mSEA-LHR
$651
4/28lun.
1 stopDelta
14h 05mLHR-SEA
5/13mar.
1 stopDelta
15h 59mSEA-LHR
$652

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Washington found on KAYAK in the last 72 hours.
5/15jue.
2 stops
57h 12mLTN-SEA
$291
5/13mar.
2 stops
56h 52mLGW-SEA
$298
8/21jue.
1 stopIcelandair
13h 00mLGW-SEA
$602
5/2vie.
1 stopIcelandair
15h 35mMAN-SEA
$602
4/30mié.
1 stopBritish Airways
15h 54mLCY-SEA
$726
8/19mar.
1 stopBritish Airways
15h 54mLCY-SEA
$729
9/21dom.
1 stopDelta
30h 00mLCY-SEA
$892
8/29vie.
2 stopsDelta
18h 45mLCY-SEA
$945
9/11jue.
1 stopVirgin Atlantic
23h 10mLCY-PDX
$1,196
10/12dom.
1 stopVirgin Atlantic
22h 35mLCY-PDX
$1,236

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Last minute flights to Washington

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 to Washington that are departing in the next 10 days.
4/22mar.
multi-stopIcelandair
31h 15mLHR-SEA
4/29mar.
multi-stopIcelandair
17h 20mSEA-LHR
$607
4/22mar.
multi-stopIcelandair
31h 15mLHR-SEA
4/30mié.
multi-stopIcelandair
20h 35mSEA-LHR
$625
4/22mar.
nonstopVirgin Atlantic
10h 20mLHR-SEA
5/2vie.
nonstopVirgin Atlantic
9h 55mSEA-LHR
$824
4/22mar.
nonstopVirgin Atlantic
10h 20mLHR-SEA
5/14mié.
multi-stopVirgin Atlantic
15h 20mSEA-LHR
$881
4/21lun.
multi-stopDelta
15h 20mLHR-SEA
4/26sáb.
multi-stopDelta
23h 15mSEA-LHR
$1,116
4/21lun.
multi-stopDelta
17h 30mLHR-SEA
4/26sáb.
multi-stopDelta
23h 15mSEA-LHR
$1,118
4/19sáb.
nonstopBritish Airways
9h 45mLHR-SEA
4/27dom.
nonstopBritish Airways
9h 20mSEA-LHR
$1,210
4/22mar.
multi-stopBritish Airways
15h 54mLCY-SEA
5/14mié.
multi-stopBritish Airways
15h 35mSEA-LCY
$1,251
4/19sáb.
multi-stopAmerican Airlines
17h 59mLHR-SEA
4/25vie.
nonstopAmerican Airlines
9h 20mSEA-LHR
$13,265
4/19sáb.
multi-stopAmerican Airlines
17h 59mLHR-SEA
4/25vie.
multi-stopAmerican Airlines
15h 40mSEA-LHR
$13,270

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Everything you need to know for your flight to Washington

Cabin class types available on flights to Washington

Cabin classes available on flights to Washington. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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