$340 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 9/16. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

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

Tue, Jul 21 - Thu, Aug 6
Multiple Airlines Logo
8:05 pm - 4:45 pm
LHR
-
IAD
25h 40m
1 stop
Multiple Airlines Logo
8:29 am - 5:55 am
IAD
-
LHR
16h 26m
1 stop
$625Multiple Airlines
Fri, Aug 28 - Sun, Sep 20
American Airlines Logo
12:35 pm - 3:55 pm
LHR
-
IAD
8h 20mnonstop
American Airlines Logo
10:25 pm - 10:50 am
IAD
-
LHR
7h 25mnonstop
$651American Airlines
Wed, Sep 2 - Fri, Sep 11
British Airways Logo
5:25 pm - 11:33 pm
LHR
-
DCA
11h 08m
1 stop
British Airways Logo
4:59 pm - 8:00 am
DCA
-
LHR
10h 01m
1 stop
$654British Airways
Sat, Jul 11 - Wed, Sep 9
British Airways Logo
2:10 pm - 8:00 am
LHR
-
DCA
22h 50m
1 stop
British Airways Logo
3:06 pm - 9:35 am
DCA
-
LHR
13h 29m
1 stop
$655British Airways
Wed, Jul 29 - Wed, Aug 12
United Airlines Logo
8:40 am - 4:45 pm
LHR
-
IAD
13h 05m
1 stop
United Airlines Logo
5:45 pm - 9:20 am
IAD
-
LHR
10h 35m
1 stop
$656United Airlines
Fri, Aug 7 - Sun, Aug 30
United Airlines Logo
8:40 am - 4:45 pm
LHR
-
IAD
13h 05m
1 stop
United Airlines Logo
6:15 am - 8:40 pm
IAD
-
LHR
9h 25m
1 stop
$658United Airlines
Mon, Aug 17 - Mon, Aug 31
Virgin Atlantic Logo
3:20 pm - 10:09 am
LHR
-
DCA
23h 49m
2 stops
Virgin Atlantic Logo
11:00 am - 6:20 am
DCA
-
LHR
14h 20m
1 stop
$660Virgin Atlantic
Mon, Jul 20 - Tue, Jul 28
Icelandair Logo
9:25 pm - 7:25 pm
LHR
-
BWI
27h 00m
1 stop
Icelandair Logo
8:30 pm - 11:55 am
BWI
-
LHR
10h 25m
1 stop
$701Icelandair
Wed, Jul 29 - Wed, Aug 12
Virgin Atlantic Logo
8:40 am - 11:18 pm
LHR
-
BWI
43h 38m
2 stops
Virgin Atlantic Logo
9:59 am - 10:40 am
BWI
-
LHR
19h 41m
2 stops
$702Virgin Atlantic
Mon, Jul 27 - Sat, Sep 12
Icelandair Logo
1:05 pm - 7:25 pm
LHR
-
BWI
11h 20m
1 stop
Icelandair Logo
8:30 pm - 11:55 am
BWI
-
LHR
10h 25m
1 stop
$705Icelandair
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 5 days.

In the last 5 days, the cheapest flight deal to Washington, D.C. was found on the route from London, at $625 return. The most popular connection is from London to Washington, D.C. and KAYAK users have found round-trip deals for as low as $625 in the last 5 days.

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

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

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Wednesday where round-trip tickets can be as cheap as $752. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $947 on average.

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 round-trip 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 $668 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 $886 and $849 respectively. For one-way flights, the best month to travel is February with an average price of $382.

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

The average price for all round-trip flights to Washington, D.C. 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, D.C. is generally in the evening, when round-trip flights cost $796 on average. The most expensive time of day to fly to Washington, D.C. is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $814.

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 $743 round-trip, from Edinburgh $1,337 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 6 weeks before departure, which saves you about 36% 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 $245.

Good to know

Low seasonJanuary
Cheapest flight$340
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 14% 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 5 days, the cheapest flight deal to Washington, D.C. was found on the route from London, at $625 return. The most popular connection is from London to Washington, D.C. and KAYAK users have found round-trip deals for as low as $625 in the last 5 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 $870. The cheapest price found on KAYAK in the last 2 weeks cost $481 and departed from London Heathrow Airport.

  • 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.

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 $727 or less one-way and $941 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.
7.5
Virgin AtlanticOverall score based on 690 reviews
6.9Food
7.7Boarding
7.3Comfort
8.1Crew
7.5Entertainment
Airline reviews

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

10.0 ExcellentLye Sim, Jun 2026
LHR - JFK
Read more Virgin Atlantic reviews

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

Our flight was delayed 2.5 hours from Lisbon to DC so we missed our connection to Seattle that would have arrived at about 9 PM. The agent initially said we had to stay overnight in DC and there were no other options to put us on to get us to Seattle. While on board I discovered a flight via American he could have put us in but by the time we arrived in DC that was sold out. We were then put on a flight to San Francisco that was also delayed then arrived in San Francisco and our flight to Seattle was also delayed so we ended up not arriving until 2:15 am. Our son could not pick us up so we ended up having to pay over $100 to Uber home. This is the second trip with United that the flight has been delayed causing us to miss an evening in Las Vegas and we were given nothing.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

Boarding was fine, difficult to understand the guy over the speaker though so we were unsure when exactly to board until they updated the monitor by the gate. Flight itself was fine, nice flight attendants, seats were comfortable enough, good selection of entertainment on the screens. Other airlines at a similar price point have included wifi though, at a minimum messaging, for free, so that was a little disappointing to not have that. But otherwise fine. Food was pretty decent, nice hot meal, good drink selection, nice snacks. Bathrooms were ok, could've been cleaned a little more often, but they were never bad.

Vegetarian food option was very poor. Effectively, overcooked rice ("risotto"). Zero protein which is always disappointing with no vegetables and poorly seasoned. Basically had lots of carbs on 6-hour flight. Not acceptable for business class in 2026. Flight was otherwise very good.

Small plane. Tight seating . What can one say except that it was fast!

I sat in the first row behind first class. There was plenty of legroom. The entertainment was great. I saw two excellent movies and one episode of a sitcom. Also enjoyed the flight tracker.

OK overall. Flight was delayed Crew on flight was good

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Seats not as comfortable as I had hoped. Food was very nice, service was fine. Entertainment options very nice. Had thought the premium economy was a more plus 2-3-2 layout but it was a 2-4-2 with seats not as wide as I had expected.

I flew four flights on British Airways within two weeks. I was unable to download the boarding pass to my phone for any of the four flights. I could check-in for my flight but the system would not give me boarding pass. I tried multiple ways and multiple times. I discovered many other passengers also had the same issue with their boarding passes. No explanation or acknowledgement by BA.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Because our ABZ-LHR flight was cancelled by BA for reasons they refuse to tell us--not weather--we did not make this flight and were booked on the following day. BA offered no assistance to us on the phone or in the airport, and we had to find a hotel at Heathrow on our own.

Horrible - flight was delayed by 6 hours - we boarded, were made to de-board due some technical fault; aircraft changed; special meals request on new flight - all went awry. Landed in Dulles airport; breezed thru immigration; as Business Class passengers or baggage was delivered almost 90 minutes after landing; air tags indicated the bags were just near the carousel but the unhelpful BA staff - Maria and Ghina refused to give any update - palming it off on some imaginary invisible “manager” despite air tags evidence showing it right there. So about 50-60 passengers waiting and getting infuriatingly impatient for their bags coz one container was not delivered. Finally after much argument by some other passengers Maria condescended to go to the “ramp” and within 5 minutes the baggage was delivered miraculously. Question is why couldn’t she have done it one hour earlier ? Poor poor experience once again on Business Class BA.

Cheap Flight Fares would not provide booking info. I canceled the reservation and we arbitrated with American Express. They provided erroneous info to Amex and it was determined that C.F.F. deserved the price of the ticket. Worse experience I've ever had.

Seating space is appalling. Seats and all surrounding area in "Economy" is built for individuals shorter than 4' 10" and below 120 lbs. Ridiculous. While I'm not expecting fine dining, the food was the worst airplane food that I can recall.

Business class lounge for my gate was closed and no email was sent, causing me to walk back and forth to different gates, etc for over 20 minutes one way. Flight entertainment was mediocre with very poor choices especially for business class cabin. Original flight was cancelled and rebooking was difficult and no reason given for cancellation.

Very comfortable flight and simple and directed one way and back. Amazing price.

We loved our flight attendant, Emma from Scotland, the meal and entertainment offerings were wonderful, the flight was smooth, and enough leg room to stretch. We would fly with you again!

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
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Everything you need to know for your flight to Washington, D.C.

Cabin class types available on flights to Washington, D.C.

Cabin classes available on flights to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.