$312 Find Cheap Flights from the United Kingdom to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from the United Kingdom to Washington departing on 3/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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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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Good to know

Low season

January

High season

July

Cheapest flight

$312
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from London Stansted 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.

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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 8219 reviews
8.0Comfort
7.9Entertainment
7.3Food
8.5Crew
8.2Boarding
Airline reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

10.0 ExcellentStephen, Feb 2025SFO - JFK
Read more Delta reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Everything was ok!! Just bags came up a little be late.

Tasty snacks. On-time departure and early arrival. Luggage arrived quickly at the carrousel. The only negative was a man behind us that was heavily inebriated. He was served 3 double drinks during the flight. There was no telling how much he had before the flight. He was so out of it that he spilled a drink and broke the heavy liquor glass on the floor. I don't believe he should have been served so much alcohol on a two-hour flight.

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

Overall, it was okay. Seat was a little cramped. Would’ve liked more substantial snacks or opportunity to buy some.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

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 boarding experience was good; $20 for wifi per flight is uncompetitive compared to Delta, Southwest, and others, and puts American lower on my list given similar pricing.

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Delays on all NY flights. There was no communication on why but they didn’t say it was weather. Other carriers were not delayed.

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

I flew out of Reagan National. My flight was delayed, delayed, delayed, and then canceled ...THREE TIMES over TWO DAYS. Staff were seemingly not empowered to provide information on why the flights were screwed up. A real nightmare.

They cancelled our flight without warning OR a refund. Never doing business with American Airlines again! This is the second AA booked trip in a row that we've had challenges with.

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

The seats were crammed and the guy in front of me wouldn't stop reclining. If AA is cramming extra rows in, they need to take away the reclining in coach. My knees were smashed for 4 1/2 hours and I was very close to confronting the passenger in front of me.

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.

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.

take snacks and food. purchase options in flight are not great

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.

I never made this flight but the staff helped to get me rebooked (see previous review)

The seat was very uncomfortable. It helped to use the foot rest. Could not sleep because of the seat.

The seats are incredibly uncomfortable. My luggage didn't make it on the flight from London to Nashville.

The plane itself is old and way overcrowded. The crew do a great job of trying to mitigate. It is just uncomfortable for over 8 hours, bearable, but barely. Boarding, and the baggage game, is ludicrous. Why charge extra to check bags when there is not enough room for everyone to "carry-on" and checking is needed? I do not think these issues would be different with other airlines, I believe it is the attitude that squeezes every penny out of each traveler.

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.
4/24Thu
1 stopIcelandair
34h 10mLGW-SEA
4/28Mon
1 stopIcelandair
14h 55mSEA-LGW
$449
4/22Tue
1 stopIcelandair
34h 10mLGW-SEA
4/29Tue
1 stopIcelandair
14h 55mSEA-LGW
$459
3/4Tue
1 stopBritish Airways
12h 55mEDI-SEA
3/11Tue
1 stopBritish Airways
12h 25mSEA-EDI
$591
3/11Tue
1 stopBritish Airways
14h 50mEDI-SEA
3/18Tue
2 stopsBritish Airways
17h 00mSEA-EDI
$595
3/17Mon
1 stopVirgin Atlantic
23h 45mLHR-SEA
4/2Wed
nonstopVirgin Atlantic
9h 50mSEA-LHR
$610
3/17Mon
nonstopVirgin Atlantic
10h 00mLHR-SEA
4/2Wed
nonstopVirgin Atlantic
9h 50mSEA-LHR
$616
3/3Mon
1 stopDelta
13h 07mLHR-SEA
3/17Mon
nonstopDelta
9h 25mSEA-LHR
$620
4/22Tue
2 stopsAmerican Airlines
20h 24mLGW-SEA
4/30Wed
2 stopsAmerican Airlines
16h 50mSEA-LGW
$622
3/17Mon
nonstopDelta
10h 00mLHR-SEA
4/2Wed
nonstopDelta
9h 50mSEA-LHR
$631
3/3Mon
nonstopAmerican Airlines
9h 55mLHR-SEA
3/17Mon
nonstopAmerican Airlines
9h 25mSEA-LHR
$637

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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.
3/26Wed
2 stops
40h 54mSTN-SEA
$312
3/7Fri
3 stops
48h 52mSTN-SEA
$338
3/18Tue
1 stopIcelandair
28h 20mLHR-SEA
$577
5/31Sat
1 stopIcelandair
28h 30mLHR-PDX
$631
3/13Thu
nonstopBritish Airways
9h 55mLHR-SEA
$696
3/3Mon
1 stopBritish Airways
17h 30mLHR-PDX
$783
5/13Tue
1 stopVirgin Atlantic
25h 30mLCY-PDX
$1,454
5/15Thu
1 stopDelta
33h 20mLCY-PDX
$1,507
6/29Sun
1 stopVirgin Atlantic
23h 10mLCY-PDX
$1,633
3/8Sat
1 stopDelta
34h 45mLCY-PDX
$2,490

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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.
2/25Tue
multi-stopBritish Airways
14h 50mEDI-SEA
3/4Tue
multi-stopBritish Airways
12h 45mSEA-EDI
$591
2/25Tue
multi-stopBritish Airways
37h 33mEDI-SEA
3/4Tue
multi-stopBritish Airways
15h 50mSEA-EDI
$602
2/25Tue
multi-stopAmerican Airlines
13h 05mMAN-SEA
3/4Tue
multi-stopAmerican Airlines
16h 27mSEA-MAN
$728
2/25Tue
multi-stopAmerican Airlines
19h 03mMAN-SEA
3/4Tue
multi-stopAmerican Airlines
16h 27mSEA-MAN
$743
2/25Tue
multi-stopIcelandair
44h 36mLHR-SEA
3/4Tue
multi-stopIcelandair
12h 15mSEA-LHR
$745
2/25Tue
multi-stopIcelandair
44h 36mLHR-SEA
3/4Tue
multi-stopIcelandair
18h 55mSEA-LHR
$792
2/24Mon
nonstopDelta
10h 00mLHR-SEA
4/30Wed
nonstopDelta
9h 55mSEA-LHR
$841
2/24Mon
nonstopDelta
10h 00mLHR-SEA
3/29Sat
nonstopDelta
9h 25mSEA-LHR
$878
2/22Sat
nonstopVirgin Atlantic
10h 00mLHR-SEA
3/14Fri
nonstopVirgin Atlantic
9h 45mSEA-LHR
$1,024
2/25Tue
multi-stopVirgin Atlantic
23h 41mLCY-SEA
3/4Tue
multi-stopVirgin Atlantic
16h 10mSEA-LCY
$1,209

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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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