$271 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 $633 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 $633.

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 $803. 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 $1,055 and $927 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 3% 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 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 $804.

Good to know

Low season

January

High season

August

Cheapest flight

$271
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from London Gatwick Airport to Portland

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 7896 reviews
7.9Entertainment
8.2Boarding
8.5Crew
8.0Comfort
7.3Food
Airline reviews

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

10.0 ExcellentTiffany, Mar 2025MIA - DCA
Read more Delta reviews

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

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

Flight left early and arrived early. the whole trip was excellent.

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.

My only complaint is that the pocket in front of me was ripped and my things, like iPad and airline magazines, kept slipping to the floor.

Flight delayed yet again. Crew apathetic and unhelpful re affect on connecting flight.

I think Virgin is one of the best flying experiences, especially from/to the UK. The staff are so helpful and fun, the food is good, seats comfortable, goof entertainment and great value. Check in and boarding is pretty pain free. I also find that the other passengers are generally so kind and considerate than when I've flown other airlines.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Free wifi was available, but only some time, being at least 30 minutes into the flight. it would have been better that an announcement had been made about the delay.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

On time arrivals and departures. Gate boarding notices could be better if displayed on monitor.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

We were not offered anything to drink in business class during the boarding process.

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.

The flights were in time and the bags arrived. well done

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.

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

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 .

Lost my luggage in London Was double charged for luggage

Boarding could have been better organized. The one member of staff disappeared for a while so boarding by group relied on honesty.

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.
4/21Mon
1 stopUnited Airlines
27h 43mLHR-SEA
5/5Mon
2 stopsUnited Airlines
29h 17mSEA-LHR
$422
4/21Mon
2 stopsUnited Airlines
28h 59mLHR-SEA
5/5Mon
2 stopsUnited Airlines
29h 17mSEA-LHR
$432
4/24Thu
1 stopIcelandair
34h 10mLGW-SEA
4/30Wed
1 stopIcelandair
11h 40mSEA-LGW
$475
9/8Mon
1 stopIcelandair
13h 00mLGW-SEA
9/26Fri
1 stopIcelandair
11h 40mSEA-LGW
$481
4/23Wed
1 stopBritish Airways
17h 19mLHR-SEA
4/30Wed
nonstopBritish Airways
9h 20mSEA-LHR
$615
5/5Mon
nonstopAmerican Airlines
9h 45mLHR-SEA
5/15Thu
1 stopAmerican Airlines
13h 30mSEA-LHR
$624
4/22Tue
nonstopDelta
10h 20mLHR-SEA
4/30Wed
nonstopDelta
9h 55mSEA-LHR
$631
9/2Tue
1 stopDelta
32h 00mLHR-SEA
9/17Wed
nonstopDelta
9h 50mSEA-LHR
$636
9/8Mon
1 stopBritish Airways
12h 59mLHR-SEA
9/26Fri
nonstopBritish Airways
9h 20mSEA-LHR
$641
5/8Thu
1 stopAmerican Airlines
13h 40mLHR-SEA
5/27Tue
nonstopAmerican Airlines
9h 20mSEA-LHR
$672

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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.
5/11Sun
2 stops
35h 57mLGW-PDX
$271
5/6Tue
3 stops
35h 50mLGW-PDX
$290
4/15Tue
1 stopIcelandair
31h 15mLHR-SEA
$457
5/5Mon
1 stopIcelandair
28h 25mLHR-SEA
$464
4/14Mon
1 stopBritish Airways
18h 14mLCY-SEA
$663
4/22Tue
1 stopBritish Airways
18h 14mLCY-SEA
$713
9/18Thu
1 stopDelta
15h 25mLCY-SEA
$923
8/17Sun
2 stopsAmerican Airlines
31h 25mMAN-SEA
$1,047
8/21Thu
2 stopsAmerican Airlines
17h 00mMAN-SEA
$1,101
8/23Sat
1 stopDelta
13h 55mLCY-SEA
$1,102

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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.
4/1Tue
multi-stopAir Canada
20h 11mLHR-SEA
4/8Tue
multi-stopAir Canada
16h 45mSEA-LHR
$686
4/1Tue
multi-stopBritish Airways
16h 38mLHR-SEA
4/8Tue
nonstopBritish Airways
9h 20mSEA-LHR
$708
3/31Mon
multi-stopIcelandair
22h 12mLHR-SEA
4/4Fri
multi-stopIcelandair
60h 50mSEA-LHR
$971
3/31Mon
multi-stopIcelandair
22h 12mLHR-SEA
4/4Fri
multi-stopIcelandair
22h 35mSEA-LHR
$1,002
3/31Mon
nonstopVirgin Atlantic
10h 20mLHR-SEA
4/7Mon
nonstopVirgin Atlantic
9h 45mSEA-LHR
$1,017
3/31Mon
multi-stopKLM
20h 51mLHR-SEA
4/10Thu
multi-stopKLM
20h 55mSEA-LHR
$1,025
3/30Sun
multi-stopKLM
22h 50mLHR-SEA
4/3Thu
multi-stopKLM
12h 35mSEA-LHR
$1,053
3/29Sat
nonstopDelta
10h 00mLHR-SEA
4/25Fri
nonstopDelta
9h 45mSEA-LHR
$1,195
3/29Sat
nonstopDelta
10h 00mLHR-SEA
4/25Fri
nonstopDelta
9h 55mSEA-LHR
$1,198
3/28Fri
multi-stopVirgin Atlantic
17h 08mMAN-SEA
4/4Fri
multi-stopVirgin Atlantic
15h 55mSEA-MAN
$1,198

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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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