$239 Find Cheap Flights from the United Kingdom to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Washington, D.C. departing on 8/28. 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

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These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
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Cheap Flights from the United Kingdom to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from the United Kingdom to Washington, D.C. 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 the United Kingdom to Washington, D.C.

Wed, Sep 17 - Wed, Oct 1
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
$414PLAY
Find Deal
Wed, Sep 3 - Sun, Sep 7
PLAY Logo
11:40 am - 5:40 pmSTN-BWI
11h 00m1 stop
PLAY Logo
6:50 pm - 10:40 amBWI-STN
10h 50m1 stop
$422PLAY
Find Deal
Thu, Nov 6 - Mon, Nov 10
Icelandair Logo
11:55 am - 6:20 pmLGW-IAD
11h 25m1 stop
Icelandair Logo
7:40 pm - 10:55 amIAD-LGW
10h 15m1 stop
$485Icelandair
Find Deal
Thu, Nov 6 - Mon, Nov 10
Icelandair Logo
12:15 pm - 6:20 pmLHR-IAD
11h 05m1 stop
Icelandair Logo
7:40 pm - 7:30 pmIAD-LHR
18h 50m1 stop
$489Icelandair
Find Deal
Sat, Sep 27 - Sun, Sep 28
United Airlines Logo
5:40 pm - 1:38 pmLHR-IAD
24h 58m2 stops
United Airlines Logo
10:15 pm - 4:40 pmIAD-LHR
13h 25m1 stop
$491United Airlines
Find Deal
Sat, Sep 27 - Sun, Sep 28
United Airlines Logo
2:05 pm - 7:32 amLHR-IAD
22h 27m2 stops
United Airlines Logo
6:40 pm - 6:55 amIAD-LHR
7h 15mnonstop
$514United Airlines
Find Deal
Wed, Sep 17 - Wed, Oct 1
British Airways Logo
3:05 pm - 11:07 pmLGW-DCA
13h 02m1 stop
British Airways Logo
1:39 pm - 8:10 amDCA-LGW
13h 31m1 stop
$594British Airways
Find Deal
Thu, Sep 11 - Sat, Sep 20
British Airways Logo
3:05 pm - 11:07 pmLGW-DCA
13h 02m1 stop
British Airways Logo
3:35 pm - 8:10 amDCA-LGW
11h 35m1 stop
$611British Airways
Find Deal
Fri, Sep 12 - Fri, Sep 19
Virgin Atlantic Logo
9:20 am - 3:35 pmLCY-IAD
11h 15m1 stop
Virgin Atlantic Logo
5:25 pm - 9:30 amIAD-LCY
11h 05m1 stop
$674Virgin Atlantic
Find Deal
Thu, Sep 11 - Wed, Sep 17
Virgin Atlantic Logo
9:20 am - 3:35 pmLCY-IAD
11h 15m1 stop
Virgin Atlantic Logo
5:25 pm - 8:10 amIAD-LCY
9h 45m1 stop
$676Virgin Atlantic
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Washington, D.C.

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

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

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Washington, D.C. was found on the route from London, at $414 return. The most popular connection is from London to Washington, D.C. and KAYAK users have found round-trip deals for as low as $485 in the last 3 days.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C., 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 to Washington, D.C. is February, where tickets cost $623 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from the United Kingdom is $912 and $849 respectively. For one-way flights, the best month to travel is January with an average price of $768.

What is a good deal for flights to Washington, D.C.?

If you’re looking for cheap airfare to Washington, D.C., 25% of our users found tickets to Washington, D.C. for the following prices or less: From London Heathrow Airport $790 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C., 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, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Which is the cheapest airport to fly into in Washington, D.C.?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Washington, D.C. is Baltimore/Washington Airport (BWI), with an average flight price of $191.


Good to know

Low seasonFebruary
Cheapest flight$239
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from London Gatwick Airport to Baltimore

FAQs - booking Washington, D.C. flights

  • How do I transfer between terminals at the Washington Airports?

    Due to the size of Dulles Airport, the AeroTrain service is the fastest way to move through each gate section. As Dulles Airport continues to grow, it is recommended to check the airport website for a map of the AeroTrain loops to ensure you take the correct service. To make it around Reagan airport, the airport shuttle bus operates 24 hours a day and loops between Terminals A, B, and C and the car parks. Alternatively, you can take the pedestrian bridge to move between Terminals B and C.

  • Where can I find the duty-free stores at the Washington Airports?

    Due to the size of Dulles Airport, there are a number of duty-free shopping opportunities. You can find two on Concourse A, near Gate A32 and A14, one near Gate B63 on Concourse B, near C14 and C4 on Concourse C and near Gate D1 and Gate 12 on Concourse D. Reagan Airport also has duty-free stores, with one in Terminal A and one store in Terminal C.

  • Where can I get something to eat after my flight?

    If you’re looking to grab a coffee and something to eat, both Reagan Airport and Dulles Airport have a Starbucks in the ticketing area after you pass through security. If you’re at Reagan Airport, you could also have a cold drink and something to eat at Il Vaggio’s Matsutake Sushi or Legal Sea Foods located in the National Hall. At Dulles Airport, you can find the Gourmet Market on the baggage claim level.

  • What accommodation options are there near the Washington Airports?

    As the Reagan Airport is within 10 minutes of the city, there is a wide range of hotels available close by, including the Crystal Gateway Marriott or Hampton Inn near the train station. If you’d like to stay somewhere on the airport site, Washington Dulles Airport Marriott is opposite the Dulles Airport terminals with an airport shuttle available.

  • What is the cheapest flight to Washington, D.C.?

    In the last 3 days, the cheapest flight deal to Washington, D.C. was found on the route from London, at $414 return. The most popular connection is from London to Washington, D.C. and KAYAK users have found round-trip deals for as low as $485 in the last 3 days.

  • Which Washington, D.C. airport is closest to central Washington, D.C.?

    Washington, D.C. is served by 2 major airports. Reagan Washington National Airport (4 miles) is the closest to the center of Washington, D.C. and Washington Dulles Airport is 22 miles from the center.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $894. The cheapest price found on KAYAK in the last 2 weeks cost $616 and departed from London Heathrow Airport.

  • What is the cheapest day to fly to Washington, D.C.?

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Thursday where round-trip tickets can be as cheap as $835. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $975 on average.

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

    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 to Washington, D.C..

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

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

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

    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 to Washington, D.C. 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 to Washington, D.C.?

    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 to Washington, D.C. 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 Washington, D.C.?

    The cheapest time of day to fly to Washington, D.C. is generally at night, when round-trip flights cost $762 on average. The most expensive time of day to fly to Washington, D.C. is generally in the morning, which is peak travel time and where the average cost of a ticket is $880.

  • How many direct flights to Washington, D.C. are there each week?

    Each week there are around 7,844 direct flights from within United Kingdom to Washington, D.C.. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Washington, D.C.

  • Looking for a cheap flight? 25% of our users found flights on this route for $793 or less one-way and $849 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.
  • There are a number of cities in the UK with direct flights to Washington DC, including London, Manchester, Newcastle, Glasgow, Edinburgh and Birmingham. You will fly into one of Washington’s two major internationals airports – Dulles International Airport (IAD) or Ronald Reagan Washington National Airport (DCA).
  • Reagan Airport is the closest airport to downtown Washington DC at just a 13-minute drive across the Potomac River. This airport is well connected to the public transport system on the Blue Line and Yellow Line of the Metrorail, which will take you into the city centre. You can find the station between Terminals B and C.
  • The larger Dulles Airport is located approximately 40 minutes outside of Washington DC and is not part of the Metrorail service. To help connect travellers to the city, you can catch the Silver Line Express bus to the Wiehle-Reston East station on the Silver Line. This service costs approximately $5 a ticket (£3.70), plus the metro ticket.
  • If you’re travelling with kids, Dulles Airport has partnered with NASA to provide an interactive gaming area on Concourse B near Gate B70. Here your children, or children at heart, can play games and learn while waiting to fly. The airport website also has activity sheets free to print off.
  • For those who need a phone charger after their flight to Washington DC, Reagan Airport has charging stations near the gates, in the restaurant area and at the baggage claim level. You will find these by looking for the "Power Up" sign.

Reviews of the top 5 airlines serving from the United Kingdom to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Washington, D.C.? 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
United AirlinesOverall score based on 8896 reviews
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

8.0 ExcellentHal, Jul 2025FRA - IAD
Read more United Airlines reviews

Had one staff that was not pleasant. Seems they are stressed with too many people to care for.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

I had an awful experience at the ticketing agent stand. I had purchased three tickets, one of which I had the maiden name of a passenger on the ticket. They refused to help, assist, and actually delayed our process and had us miss an opportunity to purchase a ticket on the same flight. I was sent through multiple phone calls, none of which helped, and the person at the counter was the person who told me to both call Aer Lingus for help and was the person who said they could not fulfill my request that they were privy to from the beginning. My partner is still stuck in Scotland, racking up thousands of dollars in additional fees and tickets. I am very upset and two of my tickets went unused. I will never be using Aer Lingus ever again and I will continue to complain about them.

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

In business class overhead bins were minuscule. Had to use cabin staff to find a place for my carry-on bag. Boarding process was shambolic, as “passengers who needed assistance in boarding” absorbed an excessive amount of time and attention that Aer Lingus was apparently unprepared for.

Aer Lingus was fabulous.nhowever, Aiirfare Assist who Kayak routes me to to purchase tickets for m was awful. They messed up my reservation so bad that after about six hours on the phone with them over the week before departure, I had been choice but to show up at the airport. The Aer Lingus staff were amazing and got it sorted out but I would recommend not using Airfare Assist.

Dublin to Boston was decent. Food and entertainment was included and that was expected for the rate paid.

No entertained. food and beverages were not complimentary. they lost my checked luggage which made my 10 day vacation unpleasant.

Flight was on time. Boarding was quick and efficient. Seats were comfortable. Food was fine.

The ease of boarding was good. I wish they had something to eat on the plane.

I like Aer Lingus so that is why I’m writing this critique so they can become better. The boarding gate was too small to board properly. Our seats were toward the back of the plane knowing we would be boarding after business class, we moved to that area after business class boarded. An Aer Lingus employee told us we couldn’t stand there. We explained we were the next group to board and wouldn’t even be able to hear when our boarding was called. She didn’t care and was not very professional. The cabin was freezing. I wouldn’t feed my dog the food. We were over an hour late coming into chicago because of weather which can’t be avoided. I asked the crew if they could make an annoucement for before whose final destination is chicago to wait and allow the people with connecting to deplane first. He said there are a lot of people with connecting flights. He said, it doesn’t matter. Well, yes it does. He could have been more considerate of his passengers.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

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..

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.

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

I was put into business class. Wow! My flight attendant was great! The food amazing’

The gate at London Gatwick had confusing signs for the different zones and the staff seemed harried because people didn't know when it was their turn to come to the desk. Plus, with there were too many carry-on bag travelers, myself included. The charge scheme for checking bags is frustrating. If you travel light, you want the freedom to leave as soon as you deplane. When you are forced to gate-check your bag simply because the flight is fully booked, you lose whatever time you'd hoped to save because you're still stuck waiting for your bag to come off the conveyor belt.

Not so good with their baggage handling as they damaged one of my check in luggage

All went well on the flight, not happy of course with having to pay for a seat and in hold luggage of £50

We never made it onto this flight due to BA's lackluster organisation.

The air hostess were good, cheerful, but I didn't like the boarding. My son and I initially bought our flight tickets, making sure it included 1 luggage and a carry on. Tickets were purchased for British airlines, but we were merged with American Airlines. At checking in our languages, we were told, we don't have luggage prepaid so we had to pay extra $125 each and almost £60 on our way back. I think that's unfair.

Economy seats are so small and compacted so close together that comfort is negatively affected, especially on long flights. However that is due to aircraft design, not anything the airline can do about it.

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

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