LON - WAS

£286 Find Cheap Flights from London to Washington, D.C. – Compare and Save

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Everything you should know

Cheapest return fare
£407
Typical prices: £513-£708
Virgin Atlantic
Wed 18/11Wed 2/12
LHR - IAD • 1 stop
Cheapest direct flights
£409
Typical prices: £524-£784
Virgin Atlantic
Mon 2/11Sun 8/11
LHR - IAD • Direct
Advice from real travellers
BA premium economy adds legroom and priority boarding on this long-haul route.
Lufthansa Premium Economy adds 50% more space plus an extra checked bag.
Expert advice
Expert advice
Expert advice
Expert advice
Direct flights
You can fly direct with British Airways, United Airlines, and Virgin Atlantic. Average duration is 8h 32m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
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Avoid delays
Most punctual • 90% on-time
Best time • Fewest delays
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Top stopover airports
Cheapest • Avg £323 (return)
Shortest trip • 10h 54m (one-way)
Insights
Insights
Insights
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When to book
in advance
Our data shows that travellers who book at least 6 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
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We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to Washington, D.C. (LON-WAS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Washington, D.C.

Wed, 18 Nov - Wed, 2 Dec
Virgin Atlantic Logo
10:00 - 15:55LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
10h 55m1 stop Amsterdam Schiphol
Virgin Atlantic Logo
18:55 - 07:20IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 25mdirect
£407Virgin Atlantic
Wed, 25 Nov - Tue, 1 Dec
Virgin Atlantic Logo
10:00 - 15:55LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
10h 55m1 stop Amsterdam Schiphol
Virgin Atlantic Logo
18:55 - 07:20IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 25mdirect
£407Virgin Atlantic
Sun, 1 Nov - Sun, 8 Nov
SWISS Logo
08:40 - 17:00LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
13h 20m1 stop Zurich
SWISS Logo
20:10 - 17:50IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
16h 40m1 stop Zurich
£407SWISS
Fri, 11 Dec - Fri, 15 Jan
Multiple Airlines Logo
10:00 - 15:55LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
10h 55m1 stop Amsterdam Schiphol
Multiple Airlines Logo
19:30 - 07:55IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
7h 25mdirect
£407Multiple Airlines
Tue, 10 Nov - Tue, 17 Nov
Multiple Airlines Logo
08:50 - 18:30LGW  London Gatwick-IAD Washington, D.C. Dulles Intl
14h 40m2 stops Dublin Reykjavik Keflavik Intl
Multiple Airlines Logo
19:40 - 20:40IAD  Washington, D.C. Dulles Intl-LGW London Gatwick
20h 00m2 stops Reykjavik Keflavik Intl Dublin
£407Multiple Airlines
Sun, 10 Jan - Sat, 16 Jan
Icelandair Logo
20:35 - 18:30LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
26h 55m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:50IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
10h 10m1 stop Reykjavik Keflavik Intl
£409Icelandair
Tue, 27 Oct - Tue, 3 Nov
United Airlines Logo
09:30 - 16:55LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Frankfurt am Main
United Airlines Logo
08:37 - 07:10IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
17h 33m2 stops Newark Montreal Pierre Elliott Trudeau Intl
£409United Airlines
Fri, 30 Oct - Thu, 12 Nov
United Airlines Logo
09:30 - 16:55LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
11h 25m1 stop Frankfurt am Main
United Airlines Logo
08:37 - 07:10IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
17h 33m2 stops Newark Montreal Pierre Elliott Trudeau Intl
£409United Airlines
Tue, 27 Oct - Tue, 3 Nov
SWISS Logo
06:00 - 18:00LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
16h 00m1 stop Zurich
SWISS Logo
17:45 - 13:00IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
14h 15m2 stops Brussels Bruxelles-National Zurich
£409SWISS
Thu, 14 Jan - Fri, 29 Jan
Icelandair Logo
12:15 - 18:30LHR  London Heathrow-IAD Washington, D.C. Dulles Intl
11h 15m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 19:30IAD  Washington, D.C. Dulles Intl-LHR London Heathrow
18h 50m1 stop Reykjavik Keflavik Intl
£412Icelandair
Booking Insights

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

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

How much is a return flight from London to Washington, D.C.?

Flight prices are below average for this route right now.

Flights to Washington, D.C. from London usually cost between £452 and £596 in November.
The lowest price found in the past 5 days was £407 on Virgin Atlantic (18 Nov–2 Dec).

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

The cheapest return flight from London to Washington, D.C. costs £402 on the route between London Heathrow Airport (LHR) and Washington, D.C. Dulles Intl Airport (IAD). Over the past month, this route was, on average, 5% cheaper than other London-Washington, D.C. routes. It is also the most popular route.

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

For London to Washington, D.C., Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Washington, D.C. back to London, the best deals are generally found on Tuesday, with Wednesday being the most expensive.

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

The cheapest month for flights from London to Washington, D.C. is February, where tickets cost £485 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £584 and £581 respectively.

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

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £497 on average.

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

To get a below average price on the flight from London to Washington, D.C., you should book around 6 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Expert advice

Expert advice for your flight from London to Washington, D.C.

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Jessica Macdonald

Jessica Macdonald

Expert on Lufthansa

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has travelled to more than 50 countries across six continents.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Tara Craig

Tara Craig

Expert on Austrian Airlines

Tara Craig has been a journalist for 17 years, focusing on aviation for more than a decade. She has covered everything from how airports accommodate disabled passengers to the emergence of electric air taxis. Tara is constantly travelling and finds it hard to stop noticing things – good and bad – about the air travel experience.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Kirstie Pickering

Kirstie Pickering

Expert on LHR

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Good to know - Cheap tickets from London to Washington, D.C.

Low season

February

Cheapest flight

£286
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from London Heathrow Airport to Baltimore

When to book flights from London to Washington, D.C.

Are your dates flexible? Find out the best times to travel from London to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking flights from London to Washington, D.C.

  • How do I travel to London airports?

    For those departing from Heathrow Airport, you can catch the Heathrow Express train from central London. This will take you only 15min. Alternatively, the Piccadilly Line on the Underground stops outside Terminals 2 & 3, Terminal 4 and Terminal 5. The Gatwick Express can take you to Gatwick Airport in 30min from Victoria Station, and those departing from Stansted Airport, can catch the Stansted Express from Tottenham Hale or Liverpool Street stations.

  • How do I travel from Washington Airport into the city?

    The Washington DC Metrorail Train System is connected to Reagan Airport with a station located on the concourse between Terminals B and C. Farecards can be found at all entrances to the station. On the other hand, the Dulles Airport is not directly connected to the Metrorail system, however the Silver Line Express bus service can connect you to the closest station, the Wiehle-Reston East Metro Station, for around $5 (£3.80).

  • Are there any passenger lounges in London airports?

    If you’d like to wait for your flight from London to Washington in comfort, you can find passenger lounges throughout Heathrow Airport. Plaza Premium Lounges are located at Terminal 2A, Terminal 3 ground floor, Terminal 4 near Gate 1 and at Terminal 5 next to Gate A7. These lounges can be accessed for £40 at the door. The Aspire Lounge & Spa at Terminal 5 has the added luxury of spa facilities and can be accessed for £35.

  • Are there any hotels near Washington Airport?

    For those flying into Dulles Airport, you can find Washing Dulles Airport Marriott on the airport campus, within a 3min drive of the terminal. This hotel also offers an airport shuttle for added convenience. The Westin and Hyatt Regency Dulles are also within a 5min drive. 5min from Ronald Reagan Airport is Crystal City, which has a range of accommodation options, including the International Luxury Suites, the Hilton Garden Inn and the Crystal City Marriott.

  • What visa do I need to fly from London to Washington DC?

    UK travellers must apply for an Electronic System for Travel Authorisation (ESTA) before they fly to the United States. An ESTA usually costs around US$ 20 (£18), and you can apply for it through the US State Department website. This will allow you to stay in the United States for up to 90 days. You must also have a valid UK passport when you travel to America.

  • What parking is available at the Washington DC airports?

    If you’re landing at Dulles International, you can meet your lift at the short-stay car park, inside Garages 1 and 2. You can reach the car parks via covered walkways or take a quick, free shuttle from Curb 2F at the terminals. A mobile phone car park is also available in the pick-up zone, where drivers can park for up to 1 hour for free. Meanwhile, passengers arriving at Ronald Reagan National Airport can reach the car park via the AirTrain service, which stops at all terminals and international parking garages.

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

    In the last 5 days, the lowest price for a flight from London to Washington, D.C. was £285 for a one-way ticket and £407 for a return.

  • Which airports will I be using when flying from London to Washington, D.C.?

    London is served by 2 major airports and there are 2 airports in Washington, D.C.. You will leave London from one of these airports: London Heathrow or London Stansted. You will be arriving in Washington, D.C. at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from London to Washington, D.C.?

    The Boeing 777 is the aircraft model that flies most regularly on the London to Washington, D.C. flight route.

  • Which airline alliances offer flights from London to Washington, D.C.?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between London and Washington, D.C., with oneworld being the most commonly used for this route.

  • On which days can I fly direct from London to Washington, D.C.?

    There are direct flights from London to Washington, D.C. on a daily basis.

  • Which is the best airline for flights from London to Washington, D.C., Austrian Airlines or Air France?

    The two airlines most popular with KAYAK users for flights from London to Washington, D.C. are Austrian Airlines and Air France. With an average price for the route of £500 and an overall rating of 7.5, Austrian Airlines is the most popular choice. Air France is also a great choice for the route, with an average price of £644 and an overall rating of 7.5.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington, D.C. with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London 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. from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Washington, D.C.

  • Looking for a cheap flight from London to Washington, D.C.? 25% of our users found flights on this route for £446 or less one-way and £500 or less round-trip.
  • When booking your flights from London to Washington, you can choose to fly into either Washington Dulles International Airport (IAD) or Ronald Reagan Washington National Airport (DCA). Dulles Airport is larger, however Reagan Airport is only 15min from downtown Washington.
  • If you wish to purchase United States Dollars before your flight from London to Washington, you can order your foreign currency online on the Heathrow Airport website and pick it up when you arrive at the airport. Collections can be made at the Travelex counters, found at all terminals before security.
  • For those feeling lost at Dulles Airport, you can find an information desk near Baggage Claims 6, 11 and 14. Alternatively, keep an eye out for the Airport Ambassadors in their yellow shirts, volunteers who can help provide advice on airport services.
  • Those bringing their own car to Gatwick Airport (LGW) can find budget-friendly long stay parking available at the designated car park, starting at £22. You can then catch the free shuttle bus to either the South or North Terminal.
  • If you are looking for a bite to eat after your flight from London to Washington, you can find a number of options in the public area of the Reagan Airport, known as the National Hall. Before security, you can find a 24-hour Dunkin’ Donuts or Starbucks if you’re looking for a coffee.
  • If you want to find cheap flights from London to Washington, DC, and reduce your carbon footprint when you fly, our C02 filter can help you find eco-friendly routes. For London to Washington flights, you can lower your carbon output by around 40% if you fly from London Heathrow (LHR) with British Airways or Aer Lingus. Both options take around 12-14 hours and arrive at Washington DC Dulles International Airport (IAD), with one layover in Dublin.
  • Hiring a car in Washington DC? Both Washington DC Dulles International Airport and Ronald Reagan Washington National Airport (DCA) offer on-site car hire services. If you’re landing at Ronald Reagan National Airport, you can reach the car hire services by taking a shuttle from outside the Economy Parking Lot. Meanwhile, at Dulles International, you can find car hire services outside the terminal, beside the Terminal 2 Parking Garage.
  • If you’re travelling with kids, London Heathrow generally has children’s play areas inside all terminals. These play areas are located after security, inside the main departure lounges.

Prefer to fly direct from London to Washington, D.C.?

 
Find which airlines fly direct from London to Washington, D.C., which days they fly and book direct flights.

Direct departures

London to Washington, D.C.

Monday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Tuesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Wednesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Thursday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Friday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Saturday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Sunday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

See more direct flights

Direct returns

Washington, D.C. to London

Monday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Tuesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Wednesday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Thursday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Friday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Saturday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

Sunday

British Airways,United Airlines,Virgin Atlantic

British Airways,United Airlines, +1 more

See more direct flights

More options for your flight from London to Washington, D.C.

Complete your trip to Washington, D.C. with a hotel stay or car hire