$334 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 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.

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 4 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 $859.


Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$334
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from London Gatwick 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.

  • What is the cheapest day to fly to Washington?

    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 time of day to fly to Washington?

    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.

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 7934 reviews
8.2Boarding
7.9Entertainment
8.5Crew
7.9Comfort
7.3Food
Airline reviews

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

10.0 ExcellentAnonymous, Apr 2025AMS - ATL
Read more Delta reviews

Fine except the person next to me took up her seat had raised the arm divide so she spilled into my seat. because of her size. Fortunately no one was in the seat on my right so I could use part of it.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

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.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

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.

Paid $35 and not able to access the internet at all.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Flight was delayed bc of mechanical issue. New plane had different configuration so some seats had to be switched. They called all passengers who needed new boarding cards. They did not call us so we thought our seats were the same and fine. When we boarded they informed us our receipts had changed and we are now all sitting separate and in the back row. Both my daughters had meltdowns and started to cry and once we got on the flight, we figured out how we could sit closer to each other, but this was very upsetting.

Took off on time and successfully avoided weather that looked to be a problem along the way

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.

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

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.

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.
5/10Sat
1 stopIcelandair
13h 00mLGW-SEA
5/16Fri
1 stopIcelandair
14h 55mSEA-LGW
$528
5/12Mon
1 stopIcelandair
13h 00mLGW-SEA
5/16Fri
1 stopIcelandair
12h 00mSEA-LGW
$529
9/3Wed
1 stopBritish Airways
19h 35mLHR-SEA
9/17Wed
1 stopBritish Airways
16h 45mSEA-LHR
$561
6/9Mon
1 stopDelta
15h 15mLHR-SEA
9/16Tue
nonstopDelta
9h 50mSEA-LHR
$565
9/11Thu
1 stopBritish Airways
18h 10mLHR-SEA
9/25Thu
nonstopBritish Airways
9h 20mSEA-LHR
$566
6/9Mon
nonstopDelta
10h 20mLHR-SEA
9/16Tue
nonstopDelta
9h 50mSEA-LHR
$584
5/20Tue
1 stopVirgin Atlantic
13h 00mLHR-SEA
5/28Wed
1 stopVirgin Atlantic
15h 09mSEA-LHR
$623
5/13Tue
1 stopVirgin Atlantic
13h 00mLHR-SEA
5/23Fri
nonstopVirgin Atlantic
9h 55mSEA-LHR
$656
6/9Mon
1 stopAmerican Airlines
14h 30mLHR-SEA
6/18Wed
1 stopAmerican Airlines
29h 24mSEA-LHR
$699
6/10Tue
nonstopAmerican Airlines
9h 45mLHR-SEA
6/23Mon
1 stopAmerican Airlines
13h 30mSEA-LHR
$741

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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.
6/9Mon
1 stop
33h 45mLGW-SEA
$334
5/26Mon
2 stops
37h 28mEDI-SEA
$334
6/5Thu
nonstopVirgin Atlantic
10h 20mLHR-SEA
$433
10/6Mon
1 stopIcelandair
16h 00mMAN-SEA
$573
5/9Fri
1 stopIcelandair
12h 45mLHR-SEA
$599
5/12Mon
1 stopBritish Airways
18h 14mLCY-SEA
$634
5/19Mon
1 stopBritish Airways
16h 45mLCY-SEA
$689
9/14Sun
1 stopVirgin Atlantic
24h 40mLCY-SEA
$898
9/28Sun
2 stopsDelta
32h 54mLCY-PDX
$1,267
7/8Tue
1 stopDelta
33h 20mLCY-PDX
$1,653

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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.
5/4Sun
multi-stopIcelandair
12h 45mLHR-SEA
5/14Wed
multi-stopIcelandair
12h 10mSEA-LHR
$597
5/4Sun
multi-stopIcelandair
13h 00mLGW-SEA
5/14Wed
multi-stopIcelandair
11h 40mSEA-LGW
$612
5/5Mon
multi-stopAir Canada
18h 07mLHR-SEA
5/12Mon
multi-stopAir Canada
16h 20mSEA-LHR
$657
5/5Mon
multi-stopBritish Airways
16h 13mLHR-SEA
5/12Mon
nonstopBritish Airways
9h 20mSEA-LHR
$683
5/5Mon
multi-stopBritish Airways
12h 35mEDI-SEA
5/12Mon
multi-stopBritish Airways
12h 20mSEA-EDI
$741
5/5Mon
multi-stopDelta
27h 07mLHR-SEA
5/20Tue
nonstopDelta
9h 55mSEA-LHR
$889
5/3Sat
nonstopVirgin Atlantic
10h 20mLHR-SEA
9/11Thu
nonstopVirgin Atlantic
9h 50mSEA-LHR
$928
5/2Fri
nonstopVirgin Atlantic
10h 20mLHR-SEA
5/30Fri
nonstopVirgin Atlantic
9h 55mSEA-LHR
$1,104
5/2Fri
nonstopAmerican Airlines
9h 45mLHR-SEA
5/8Thu
multi-stopAmerican Airlines
13h 30mSEA-LHR
$1,115
5/2Fri
multi-stopAmerican Airlines
22h 11mLGW-SEA
5/8Thu
multi-stopAmerican Airlines
16h 50mSEA-LGW
$1,149

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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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