£161 Find Cheap Flights from Washington, D.C. to the United Kingdom

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to the United Kingdom departing on 21/7. 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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Best United Kingdom Flight Deals from Washington, D.C.

Cheapest return prices found by our users on KAYAK in the last 72 hours

London
London1 stop£289
Manchester
Manchester1 stop£418
Edinburgh
Edinburgh1 stop£409
Belfast
Belfast1 stop£497
Bristol
Bristol1 stop£612
Lerwick
Lerwick2 stops£678
London
London1 stop£289
Manchester
Manchester1 stop£418
Edinburgh
Edinburgh1 stop£409
Belfast
Belfast1 stop£497
Bristol
Bristol1 stop£612
Lerwick
Lerwick2 stops£678

Cheap Flight Deals from Washington, D.C. to the United Kingdom (WAS-GB0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington, D.C. to the United Kingdom that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Washington, D.C. to the United Kingdom

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Washington, D.C. to the United Kingdom.
Discover the best prices for you by selecting your travel dates on KAYAK.
Scandinavian Airlines Logo
22:05 - 17:40IAD-LHR
14h 35m1 stop
Scandinavian Airlines Logo
19:30 - 19:59LHR-IAD
29h 29m1 stop
£315Scandinavian Airlines
Find Deal
Wed, 3 Sep - Sun, 7 Sep
Scandinavian Airlines Logo
22:05 - 21:35IAD-LHR
18h 30m2 stops
Scandinavian Airlines Logo
17:30 - 19:59LHR-IAD
31h 29m2 stops
£320Scandinavian Airlines
Find Deal
Tue, 23 Sep - Mon, 6 Oct
PLAY Logo
18:50 - 10:40BWI-STN
10h 50m1 stop
PLAY Logo
10:55 - 16:55STN-BWI
11h 00m1 stop
£330PLAY
Find Deal
Mon, 13 Oct - Wed, 3 Dec
PLAY Logo
18:50 - 10:40BWI-STN
10h 50m1 stop
PLAY Logo
11:40 - 17:40STN-BWI
11h 00m1 stop
£333PLAY
Find Deal
Tue, 9 Sep - Wed, 17 Sep
Iberia Logo
17:55 - 06:15IAD-LHR
7h 20mdirect
Iberia Logo
06:10 - 15:00LHR-IAD
13h 50m1 stop
£410Iberia
Find Deal
Mon, 11 Aug - Tue, 26 Aug
Iberia Logo
21:20 - 09:35BWI-LHR
7h 15mdirect
Iberia Logo
16:35 - 19:35LHR-BWI
8h 00mdirect
£425Iberia
Find Deal
Wed, 24 Sep - Thu, 2 Oct
British Airways Logo
17:49 - 08:10DCA-LGW
9h 21m1 stop
British Airways Logo
15:05 - 22:36LGW-DCA
12h 31m1 stop
£477British Airways
Find Deal
Tue, 13 May - Wed, 21 May
British Airways Logo
21:20 - 09:35BWI-LHR
7h 15mdirect
British Airways Logo
16:35 - 19:35LHR-BWI
8h 00mdirect
£483British Airways
Find Deal
Wed, 3 Sep - Fri, 12 Sep
Virgin Atlantic Logo
11:00 - 10:00DCA-LGW
18h 00m1 stop
Virgin Atlantic Logo
12:00 - 23:30LGW-DCA
16h 30m1 stop
£483Virgin Atlantic
Find Deal
Wed, 13 Aug - Tue, 19 Aug
Virgin Atlantic Logo
14:10 - 10:15BWI-LHR
15h 05m2 stops
Virgin Atlantic Logo
15:15 - 00:12LHR-BWI
13h 57m1 stop
£517Virgin Atlantic
Find Deal
Wed, 15 Oct - Fri, 24 Oct
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KAYAK's insights & trends for Washington, D.C. to the United Kingdom flights

Get data-powered insights and trends into flights from Washington, D.C. to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Washington, D.C. to the United Kingdom flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Washington, D.C. to the United Kingdom.
The cheapest ticket to the United Kingdom from Washington, D.C. found in the last 72 hours was to London, at £428 return. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £428.

What is the cheapest time of day to fly to the United Kingdom?

The average price for all round-trip flights from Washington, D.C. to the United Kingdom depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to the United Kingdom is generally at night, when retur flights cost £821 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the evening, which is peak travel time and where the average cost of a ticket is £844.

Can I save money by flying with a stopover from Washington, D.C. to the United Kingdom?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of £1,608, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to the United Kingdom, 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 Washington, D.C. to the United Kingdom is January, when tickets cost £480 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is £726 and £656 respectively.

What’s the cheapest day of the week to fly from Washington, D.C. to United Kingdom?

The average price of all round-trip flights from Washington, D.C. to the United Kingdom clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to United Kingdom on a Monday and more expensive on a Saturday. On your return trip to Washington, D.C., you should consider flying back on a Wednesday, and avoid Sundays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to the United Kingdom, 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 Washington, D.C. to the United Kingdom, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know - Cheap tickets from Washington, D.C. to the United Kingdom

Low season

February

High season

July

Cheapest flight

£161
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from Washington, D.C. to London Gatwick Airport

Flights from Washington, D.C. to the United Kingdom: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Washington, D.C. to the United Kingdom 
Verified travelerFlew with British AirwaysIAD-LHRApr 2025
Have no basis for comparison, but British Airlines does a good job.
DeeFlew with United AirlinesIAD-LHRFeb 2025
For me the best route to LHR is the late night departure on UAL. The flight is often roughly 6.5 hours so I skip dinner, use an eye mask and earplugs and try to sleep.
NancyFlew with British AirwaysIAD-LHRNov 2024
Looking at schedules and prices, I settled on BA years ago. I have yet to meet an employee who wasn't at the very least pleasant. Most go out of their way in difficult situations to be kind and cheery.
EllenFlew with British AirwaysIAD-LHROct 2024
Do not check your bag if at all possible, especially if you have a connecting flight. Your bag will not make it.
Verified travelerFlew with British AirwaysIAD-LHRSept 2024
Process to get to connecting flights at Heathrow is convoluted/complicated.
CraigFlew with United AirlinesIAD-LHRJun 2024
Get to beginning of boarding group early. Bring as little on board as possible due to small overhead bin space.
SaraFlew with British AirwaysIAD-LHRJul 2024
British Airways baggage policy was on top. Boarding was well organized and food was pretty good.
Verified travelerFlew with IberiaIAD-LHRAug 2024
British Airways offered an excellent service . Thank you !

FAQs - booking United Kingdom flights

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

    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 Washington, D.C. to the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington, D.C. to the United Kingdom is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Washington, D.C. to the United Kingdom 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 Washington, D.C. to the United Kingdom?

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

Top 5 airlines serving from Washington, D.C. to the United Kingdom

Need help choosing which airline to fly with from Washington, D.C. to the United Kingdom? 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.
7.4
Virgin AtlanticOverall score based on 642 reviews
6.9Food
7.6Boarding
7.2Comfort
8.1Crew
7.5Entertainment
Airline reviews

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

2.0 MediocreAnthony, Apr 2025BLR - GOI
Read more Virgin Atlantic reviews

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.

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.

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.

Awful. The flight wasn't actually operated by Iberia, but by American Airlines. I was unable to get my boarding pass and as a result missed my connecting flight.

The seats were way too crowded. Just because I do not have the luxury of a suite, does not mean that I want to fly from Austin to London scrunched between two people and the seat in front of me in my face. Ridiculous. I should have flown with Turkish Airlines...

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

Paid for “extra room” selected seat. Wasn’t a benefit. Also was in aisle and was bumped almost every time attendants walked down aisle. Should have saved the assigned seat money and let them select.

Everything OK , except the plane left more than an hour late so I couldn’t participate in an excursion I had that morning in Brcelona

Flight from Madrid to Dakar had no onboard entertainment for a business class. Not even a single screen . That was disappointing. The WiFi only worked for the first 45 mins of the flight.

very good all round. staff, food, entertainment, punctuality all very good

The cabin crew were great very helpful and accommodating. We had a fellow passenger throw up next to us. The flight crew did an amazing job cleaning up and reseating us. We did question as to if he should have been let on the flight as his condition was likely self imposed.

online check-in was horrible and didn't work either way

Horrible. Paid for seats for my family. Iberia changed planes and never notified us that the seats we paid extra for did not even exist on the plane. We were randomly placed on the plane. Thankfully, we were seated together. Upon boarding, my youngest daughter was pulled from the line and they just arbitrarily changed her seat 7 rows back from the rest of the family. I had to wait at the gate while they tried to see us back together. One of the most uncomfortable small spaces on a plane I’ve ever experienced. When I called Iberia, they first told me that no mistake was made that the plane was never changed. Yet my receipt for my paid seats were for rows that did not even exist on this type of plane we were getting on. They said that they would reimburse my money and I would get an email, but I’ve never received any information or emails regarding a refund for the seats that I had paid extra for. Then when we arrived in Madrid, one of the pieces of luggage that we had checked in was damaged to the point that the handle that was stowed in to the luggage was broken off by the crew members handling the luggage. The crew on the plane was very nice, but as far as the rest of the experience, I would be very hesitant to ever use Iberia again.

For a no frills flight this was surprising comfortable. The crew were helpful and nice. The flight was smooth and there were no delays or issues which I haven't had on a flight in a long time. I would definitely fly with them again.

The flight was canceled by play less than 24 hours prior to the trip, and I was unable to re-book. Have not received a refund for the trip despite filling out the appropriate form.

Was was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. It has been three weeks without a refund or an answer

Have not recieved full refund for my flight, which was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. This request was completed three weeks ago an answer or refund.

It would have been better to have USB charging ports available on the longer haul Flight that one of 2 hours

Was very good Staff was great. No tv monitors tho. So long flights make it longer

The worst. No free beverages. No entertainment on an overseas flight. Not enough space. Never again.

Play is affordable! Only way we fly from the states to Europe. Left late but arrived on time

have screens on backs of chairs...offer free snacks and water

Boarding and crew was great. Flight was cold, need layers. Deplaning was hard. We had to take stairs off the plane and I was separated from my travel companion because we were not seated together and they would not let him wait for me to get off so we were forced onto different shuttles.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Was late but that airport/storm fault. Flight was full but comfortable. Food quite nice. Unfortunate that I had a rather miserable attendant, others were much friendlier

Everything you need to know for your flight from Washington, D.C. to the United Kingdom

Cabin class types available on flights to the United Kingdom

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

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