$268 Find Cheap Flights from Reagan Washington National Airport to 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 Reagan-National to the United Kingdom departing on 12/8. 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.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Reagan-National to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London2 stops$560
Edinburgh
Edinburgh1 stop$659
Manchester
Manchester2 stops$596
Birmingham
Birmingham2 stops$630
Belfast
Belfast2 stops$653
Inverness
Inverness2 stops$533
Bristol
Bristol2 stops$1,046
Aberdeen
Aberdeen2 stops$921
Liverpool
Liverpool2 stops$687
Leeds
Leeds2 stops$660
Cardiff
Cardiff2 stops$785
London
London2 stops$560
Edinburgh
Edinburgh1 stop$659
Manchester
Manchester2 stops$596
Birmingham
Birmingham2 stops$630
Belfast
Belfast2 stops$653
Inverness
Inverness2 stops$533
Bristol
Bristol2 stops$1,046
Aberdeen
Aberdeen2 stops$921
Liverpool
Liverpool2 stops$687
Leeds
Leeds2 stops$660
Cardiff
Cardiff2 stops$785

Book Cheap Reagan-National to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Reagan-National to the United Kingdom

Mon, Feb 2 - Mon, Feb 9
Multiple Airlines Logo
4:10 pm - 8:10 pmDCA-LTN
23h 00m2 stops
Multiple Airlines Logo
8:50 pm - 3:28 pmLTN-DCA
23h 38m3 stops
$560Multiple Airlines
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Wed, Dec 3 - Wed, Dec 10
Virgin Atlantic Logo
4:45 pm - 7:50 amDCA-LHR
10h 05m1 stop
Virgin Atlantic Logo
1:20 pm - 7:46 pmLHR-DCA
11h 26m1 stop
$563Virgin Atlantic
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Wed, Jan 14 - Thu, Jan 22
British Airways Logo
8:20 am - 7:30 amDCA-LGW
18h 10m1 stop
British Airways Logo
11:20 am - 9:24 pmLGW-DCA
15h 04m1 stop
$565British Airways
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Tue, Jan 20 - Tue, Jan 27
British Airways Logo
8:20 am - 7:30 amDCA-LGW
18h 10m1 stop
British Airways Logo
11:20 am - 11:25 pmLGW-DCA
17h 05m1 stop
$578British Airways
Find Deal
Tue, Mar 3 - Wed, Mar 11
American Airlines Logo
9:56 am - 7:30 amDCA-LGW
16h 34m2 stops
American Airlines Logo
12:30 pm - 11:45 pmLGW-DCA
15h 15m2 stops
$617American Airlines
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Tue, Dec 9 - Sun, Dec 14
United Airlines Logo
11:05 am - 7:10 amDCA-LHR
15h 05m1 stop
United Airlines Logo
1:25 pm - 8:55 pmLHR-DCA
36h 30m2 stops
$618United Airlines
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Wed, Dec 10 - Sun, Dec 14
United Airlines Logo
12:55 pm - 9:20 amDCA-LHR
15h 25m1 stop
United Airlines Logo
6:30 am - 4:56 pmLHR-DCA
15h 26m2 stops
$623United Airlines
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Tue, Dec 2 - Mon, Dec 8
American Airlines Logo
3:37 pm - 10:45 amDCA-GLA
14h 08m2 stops
American Airlines Logo
6:35 am - 5:40 pmGLA-DCA
16h 05m2 stops
$627American Airlines
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Tue, Nov 18 - Mon, Nov 24
JetBlue Logo
6:24 am - 9:40 pmDCA-LHR
10h 16m1 stop
JetBlue Logo
12:20 pm - 10:59 pmLHR-DCA
15h 39m1 stop
$635JetBlue
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Sat, Jan 10 - Sat, Jan 17
JetBlue Logo
3:30 pm - 6:55 amDCA-LHR
10h 25m1 stop
JetBlue Logo
9:20 am - 5:04 pmLHR-DCA
12h 44m1 stop
$636JetBlue
Find Deal
Booking Insights

KAYAK's insights & trends for Reagan-National to the United Kingdom flights

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

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport 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. Reagan-National Airport to the United Kingdom is September, when tickets cost $630 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $1,211 and $991 respectively.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to United Kingdom?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to the United Kingdom clicked on KAYAK for each day over the last 12 months.

For Reagan Washington National Airport to United Kingdom, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from United Kingdom back to Reagan Washington National Airport, the best deals are generally found on Saturday, with Sunday being the most expensive.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport 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. Reagan-National Airport to the United Kingdom, you should book around 3 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$268
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly and prices are also 25% lower on average.
Flight from Reagan Washington National Airport to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to 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 Reagan Washington National Airport to United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to United Kingdom 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 Reagan Washington National Airport to United Kingdom?

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

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

    The cheapest time of day to fly to the United Kingdom is generally in the morning, when round-trip flights cost $765 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $968.

Reviews of the top 5 airlines serving from Reagan-National to the United Kingdom

 
Need help choosing which airline to fly with from Reagan-National 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.
7.9
DeltaOverall score based on 8006 reviews
8.1Boarding
8.5Crew
7.9Entertainment
7.3Food
7.9Comfort
Airline reviews

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

2.0 MediocreAnonymous, Nov 2025MOB - ATL
Read more Delta reviews

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

There was a fowl odour coming from the lavatory the entire flight

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

They have the most inexperienced / rude flight staff I’ve encountered

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Everything you need to know for your flight from Reagan-National to the United Kingdom

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