Cheap Flights from Washington D.C. to London
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Flights from Washington D.C. to London
Airlines Flying from Washington D.C. to London
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Flight deals from Washington D.C. to London
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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Cheapest nonstop
IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Tue, Aug 19 | Virgin Atlantic
LHR 12:358h 25mDirectIAD 16:00London - Washington D.C. | Tue, Aug 26 | Virgin Atlantic£382 £56633% OFF33% OFF£566 £382 -
IAD 22:407h 25mDirectLHR 11:05Washington D.C. - London | Tue, Aug 19 | Finnair
LHR 17:008h 10mDirectIAD 20:10London - Washington D.C. | Tue, Aug 26 | Finnair£382 £56633% OFF33% OFF£566 £382 -
IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Wed, Aug 20 | Virgin Atlantic
LGW 12:0012h 43m1 stopsDCA 19:43London - Washington D.C. | Wed, Aug 27 | Delta Air Lines£354 £56638% OFF38% OFF£566 £354
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IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Wed, Jul 30 | Virgin Atlantic
LGW 12:0012h 53m1 stopsIAD 19:53London - Washington D.C. | Wed, Aug 6 | Virgin Atlantic£37035% OFF£566 £370
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DCA 16:5912h 1m1 stopsLGW 10:00Washington D.C. - London | Wed, Aug 13 | Virgin Atlantic
LCY 08:4011h 55m1 stopsIAD 15:35London - Washington D.C. | Thu, Aug 21 | Delta Air Lines£37334% OFF£566 £373
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DCA 16:1410h 1m1 stopsLHR 07:15Washington D.C. - London | Wed, Aug 13 | United Airlines
LHR 12:158h 20mDirectIAD 15:35London - Washington D.C. | Tue, Aug 19 | United Airlines£38532% OFF£566 £385 -
IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Mon, Aug 11 | Virgin Atlantic
LHR 09:4011h 20m1 stopsDCA 16:00London - Washington D.C. | Tue, Aug 19 | Delta Air Lines£38632% OFF£566 £386
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IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Tue, Aug 5 | KLM
LGW 12:0012h 43m1 stopsIAD 19:43London - Washington D.C. | Tue, Aug 12 | KLM£38832% OFF£566 £388 -
IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Tue, Aug 5 | Air France
LGW 12:0012h 43m1 stopsIAD 19:43London - Washington D.C. | Tue, Aug 12 | Air France£38832% OFF£566 £388 -
DCA 14:5512h 10m1 stopsLHR 08:05Washington D.C. - London | Tue, Jul 22 | Virgin Atlantic
LHR 16:5011h 45m1 stopsDCA 23:35London - Washington D.C. | Wed, Jul 30 | Delta Air Lines£39530% OFF£566 £395
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IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Wed, Jul 30 | KLM
LGW 12:0012h 53m1 stopsIAD 19:53London - Washington D.C. | Wed, Aug 6 | KLM£39730% OFF£566 £397
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IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Wed, Jul 30 | Air France
LGW 12:0012h 53m1 stopsIAD 19:53London - Washington D.C. | Wed, Aug 6 | Air France£39730% OFF£566 £397
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WAS 13:0017h 25m1 stopsLON Invalid DateWashington D.C. - London | Fri, Jun 27 | Normal Airline
LON 15:006hDirectWAS 16:00London - Washington D.C. | Sun, Jun 29 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Mon, Jul 28 | Virgin Atlantic£272 £38830% OFF30% OFF£388 £272
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IAD 17:507h 30mDirectLHR 06:20Washington D.C. - London | Wed, Jul 30 | Virgin Atlantic£272 £38830% OFF30% OFF£388 £272
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DCA 06:3018h 50m1 stopsLGW 06:20Washington D.C. - London | Wed, Jul 16 | Jetblue Airways£135 £38865% OFF65% OFF£388 £135 -
DCA 06:3018h 50m1 stopsLGW 06:20Washington D.C. - London | Wed, Jul 30 | Jetblue Airways£13665% OFF£388 £136
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DCA 06:3018h 50m1 stopsLGW 06:20Washington D.C. - London | Sun, Jul 20 | Jetblue Airways£13765% OFF£388 £137
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DCA 08:5916h 21m1 stopsLGW 06:20Washington D.C. - London | Wed, Jul 16 | American Airlines£13964% OFF£388 £139 -
DCA 06:0019h 20m1 stopsLGW 06:20Washington D.C. - London | Sun, Jul 20 | American Airlines£13964% OFF£388 £139
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DCA 06:3018h 50m1 stopsLGW 06:20Washington D.C. - London | Thu, Jul 17 | Jetblue Airways£14064% OFF£388 £140
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DCA 06:3018h 50m1 stopsLGW 06:20Washington D.C. - London | Mon, Jul 28 | Jetblue Airways£14363% OFF£388 £143
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IAD 20:3010h 25m1 stopsLHR 11:55Washington D.C. - London | Tue, Jul 22 | Icelandair£14363% OFF£388 £143 -
DCA 06:3018h 50m1 stopsLGW 06:20Washington D.C. - London | Wed, Jul 9 | Jetblue Airways£14363% OFF£388 £143
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IAD 23:1516h 5m1 stopsLHR 20:20Washington D.C. - London | Fri, Aug 1 | Icelandair£14463% OFF£388 £144
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WAS 13:0017h 25m1 stopsLON Invalid DateWashington D.C. - London | Fri, Jun 27 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Information from Washington D.C. to London
| Cheapest one-way flight price | £134 |
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| Cheapest return ticket price | £353 |
| Off-season travel month | April |
| Peak season for travel | June |
| Flight distance | 5,899.53km |
| Average flight time | 7 hours 24 minutes |
| Popular airline | Virgin Atlantic |
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
FAQ
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When are flight tickets from Washington D.C. (WAS) to London (LON) the cheapest?
Airlines adjust prices for flights from Washington D.C. to London based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much are flights from Washington D.C. (WAS) to London (LON) cost?
According to Trip.com's data, the lowest price is around £663. -
How long is the flight from Washington D.C. (WAS) to London (LON)?
It takes about 7 hours 24 minutes to fly from Washington D.C. (WAS) to London (LON). -
What are the most popular airlines that fly from Washington D.C. (WAS) to London (LON)?
Airlines with flights from Washington D.C. (WAS) to London (LON): American Airlines, Air Canada, Copa Airlines, Swiss, Aer Lingus, Delta Air Lines, British Airways, Finnair, United Airlines, Lufthansa, Virgin Atlantic, Austrian Airlines and Air France. -
How many airports in London (LON)?
There are 6 airport(s) in London (LON): London City Airport, London Gatwick Airport, Heathrow Airport, London Luton Airport, London Southend Airport and London Stansted Airport.
How to find a cheap flight from Washington D.C. to London
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Washington D.C. to London. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest flight from Washington D.C. to London.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from Washington D.C. to London over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Mon, Jul 28, with one-way flights priced at just £272.
Compare cheap flight deals from Washington D.C. to London across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from Washington D.C. to London. The cheapest airline for this route is Virgin Atlantic.
Set up a Price Alert
By setting up a Price Alert for your journey from Washington D.C. to London, you can easily keep an eye on ticket prices without having to check every day.
Don't miss out on cheap flight deals and promo codes from Washington D.C. to London.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from Washington D.C. to London and snag some exclusive deals just for you.
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