$311 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 $574 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 $574.

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 April, when tickets cost $563 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of round-trip tickets is $1,060 and $904 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 $716.


Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$311
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 26% 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 $790. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,186 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 $843 on average. Morning departures are around 7% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $948.

Reviews of the 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 7963 reviews
8.2Boarding
7.3Food
7.9Comfort
7.9Entertainment
8.5Crew
Airline reviews

I like for how they process during check in. It was very smoothly.

10.0 ExcellentAbdulla, Jun 2025CMH - JFK
Read more Delta reviews

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

The crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

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.

They cancelled my flight and downgraded me to economy and only gave me $250 for the downgrade

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

The flight crew were friendly and attentive. Food was good and they passed out ice cream and drinks awhile after Lunch was done. The ice cream was a nice treat! I found several movies to watch during the flight. There was many movies and tv shows to choose from. We flew Premium economy and there was enough leg room to be comfortable. The seats were also comfortable. I would fly AA again if the airfare isn’t expensive.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset. If there is option to use another company, I suggest to other people use them.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

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.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

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.
9/6Sat
1 stopIcelandair
30h 25mLGW-SEA
10/4Sat
1 stopIcelandair
14h 55mSEA-LGW
$496
9/19Fri
1 stopIcelandair
34h 10mLGW-SEA
9/29Mon
1 stopIcelandair
14h 50mSEA-LGW
$499
9/10Wed
1 stopVirgin Atlantic
13h 00mLHR-SEA
9/17Wed
nonstopVirgin Atlantic
9h 45mSEA-LHR
$604
9/10Wed
1 stopVirgin Atlantic
13h 00mLHR-SEA
9/17Wed
nonstopVirgin Atlantic
9h 50mSEA-LHR
$608
9/2Tue
1 stopDelta
14h 10mLHR-SEA
9/9Tue
nonstopDelta
9h 50mSEA-LHR
$620
9/3Wed
1 stopDelta
13h 15mLHR-SEA
9/17Wed
nonstopDelta
9h 45mSEA-LHR
$626
9/10Wed
nonstopBritish Airways
9h 50mLHR-SEA
9/14Sun
nonstopBritish Airways
9h 20mSEA-LHR
$648
9/17Wed
1 stopBritish Airways
17h 40mGLA-SEA
10/10Fri
1 stopBritish Airways
16h 00mSEA-GLA
$658
7/9Wed
1 stopAmerican Airlines
16h 18mLHR-SEA
7/21Mon
1 stopAmerican Airlines
13h 30mSEA-LHR
$667
9/3Wed
nonstopAmerican Airlines
9h 55mLHR-PDX
9/17Wed
1 stopAmerican Airlines
13h 21mPDX-LHR
$696

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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.
9/25Thu
2 stops
44h 48mLGW-SEA
$311
9/8Mon
2 stops
48h 23mMAN-SEA
$312
10/7Tue
1 stopIcelandair
11h 30mGLA-SEA
$571
8/14Thu
1 stopIcelandair
12h 50mLGW-SEA
$580
8/18Mon
nonstopBritish Airways
9h 45mLHR-SEA
$631
12/10Wed
nonstopBritish Airways
9h 55mLHR-SEA
$641
11/18Tue
2 stopsDelta
20h 40mLCY-PDX
$1,173
9/21Sun
1 stopVirgin Atlantic
29h 35mLCY-PDX
$1,555
8/31Sun
1 stopDelta
17h 31mLGW-PDX
$1,586
6/22Sun
1 stopVirgin Atlantic
29h 35mLCY-PDX
$2,698

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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.
6/22Sun
multi-stopIcelandair
34h 10mLGW-SEA
6/29Sun
multi-stopIcelandair
28h 15mSEA-LGW
$723
6/22Sun
multi-stopIcelandair
34h 10mLGW-SEA
6/29Sun
multi-stopIcelandair
11h 40mSEA-LGW
$809
6/22Sun
multi-stopBritish Airways
32h 05mLHR-PDX
6/29Sun
multi-stopBritish Airways
22h 26mPDX-LHR
$889
6/22Sun
multi-stopBritish Airways
17h 19mLHR-PDX
6/28Sat
multi-stopBritish Airways
22h 26mPDX-LHR
$946
6/21Sat
nonstopVirgin Atlantic
10h 20mLHR-SEA
6/27Fri
multi-stopVirgin Atlantic
20h 20mSEA-LHR
$1,036
6/21Sat
nonstopVirgin Atlantic
10h 20mLHR-SEA
6/27Fri
multi-stopVirgin Atlantic
20h 20mSEA-LHR
$1,037
6/17Tue
multi-stopDelta
17h 25mLHR-SEA
6/24Tue
nonstopDelta
9h 50mSEA-LHR
$1,183
6/17Tue
nonstopDelta
10h 20mLHR-SEA
6/24Tue
nonstopDelta
9h 50mSEA-LHR
$1,201
6/20Fri
nonstopAmerican Airlines
9h 45mLHR-SEA
6/30Mon
multi-stopAmerican Airlines
13h 30mSEA-LHR
$1,213
6/21Sat
nonstopAmerican Airlines
9h 55mLHR-PDX
6/29Sun
multi-stopAmerican Airlines
22h 26mPDX-LHR
$1,760

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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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