Cheap Flights from Washington D.C. to London
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Flights from Washington D.C. to London
Flights from Washington D.C. to London Starting at £126
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 30mNonstopLHR 06:20Washington D.C. - London | Tue, Apr 8 | Virgin Atlantic
LHR 12:358h 25mNonstopIAD 16:00London - Washington D.C. | Wed, Apr 16 | Virgin Atlantic£485 £59118% OFF18% OFF£591 £485 -
IAD 22:007h 30mNonstopLHR 09:30Washington D.C. - London | Sat, Mar 15 | Virgin Atlantic
LHR 15:108h 40mNonstopIAD 19:50London - Washington D.C. | Sat, Mar 22 | Virgin Atlantic£485 £59118% OFF18% OFF£591 £485
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IAD 15:5513h 5m1 stopsLHR 10:00Washington D.C. - London | Fri, Apr 25 | United Airlines
LHR 07:4511h 30m1 stopsIAD 14:15London - Washington D.C. | Sun, Apr 27 | United Airlines£382 £59135% OFF35% OFF£591 £382 -
IAD 20:3010h 15m1 stopsLGW 11:45Washington D.C. - London | Tue, Apr 8 | Icelandair
LGW 15:4032h 40m1 stopsIAD 19:20London - Washington D.C. | Tue, Apr 15 | Icelandair£38235% OFF£591 £382 -
DCA 07:5917h 21m1 stopsLGW 06:20Washington D.C. - London | Thu, May 1 | American Airlines
LGW 13:0525h 17m1 stopsDCA 09:22London - Washington D.C. | Wed, May 7 | Norse Atlantic Airways£38535% OFF£591 £385 -
IAD 20:4010h 10m1 stopsLHR 10:50Washington D.C. - London | Sun, Mar 16 | Icelandair
LGW 11:5511h 30m1 stopsIAD 19:25London - Washington D.C. | Thu, Mar 20 | Icelandair£38635% OFF£591 £386
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IAD 20:4018h 50m1 stopsLHR 19:30Washington D.C. - London | Mon, Mar 17 | Icelandair
LGW 11:5511h 30m1 stopsIAD 19:25London - Washington D.C. | Tue, Mar 25 | Icelandair£38734% OFF£591 £387
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IAD 23:507h 15mNonstopLHR 11:05Washington D.C. - London | Fri, Mar 28 | United Airlines
LHR 07:4511h 30m1 stopsIAD 14:15London - Washington D.C. | Sun, Mar 30 | United Airlines£38834% OFF£591 £388
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IAD 22:157h 25mNonstopLHR 10:40Washington D.C. - London | Fri, Apr 4 | United Airlines
LHR 07:4511h 30m1 stopsIAD 14:15London - Washington D.C. | Sun, Apr 6 | United Airlines£38834% OFF£591 £388
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IAD 20:3010h 25m1 stopsLHR 11:55Washington D.C. - London | Wed, Apr 23 | Icelandair
LHR 13:0511h 15m1 stopsIAD 19:20London - Washington D.C. | Sun, Apr 27 | Icelandair£38934% OFF£591 £389
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IAD 20:4010h 10m1 stopsLHR 10:50Washington D.C. - London | Tue, Mar 18 | Icelandair
LGW 11:5511h 30m1 stopsIAD 19:25London - Washington D.C. | Tue, Mar 25 | Icelandair£38934% OFF£591 £389
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IAD 20:4010h 10m1 stopsLHR 10:50Washington D.C. - London | Wed, Mar 19 | Icelandair
LGW 11:5511h 30m1 stopsIAD 19:25London - Washington D.C. | Tue, Mar 25 | Icelandair£39034% OFF£591 £390
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WAS 13:0017h 25m1 stopsLON Invalid DateWashington D.C. - London | Sat, Mar 15 | Normal Airline
LON 15:006hNonstopWAS 16:00London - Washington D.C. | Mon, Mar 17 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
IAD 19:257h 30mNonstopLHR 06:55Washington D.C. - London | Tue, Mar 18 | Virgin Atlantic£290 £36120% OFF20% OFF£361 £290
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IAD 17:507h 30mNonstopLHR 06:20Washington D.C. - London | Wed, Apr 30 | Virgin Atlantic£296 £36118% OFF18% OFF£361 £296
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DCA 18:2613h 54m1 stopsLHR 12:20Washington D.C. - London | Mon, Mar 24 | American Airlines£126 £36165% OFF65% OFF£361 £126
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DCA 06:1519h 5m1 stopsLGW 06:20Washington D.C. - London | Wed, Apr 30 | Jetblue Airways£13263% OFF£361 £132 -
IAD 12:1513h 5m1 stopsLGW 06:20Washington D.C. - London | Tue, Apr 1 | Delta Air Lines£13563% OFF£361 £135 -
DCA 06:0019h 20m1 stopsLGW 06:20Washington D.C. - London | Mon, Mar 31 | American Airlines£13862% OFF£361 £138
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DCA 06:3018h 50m1 stopsLGW 06:20Washington D.C. - London | Thu, Apr 3 | American Airlines£13862% OFF£361 £138
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DCA 07:0018h 20m1 stopsLGW 06:20Washington D.C. - London | Wed, Apr 2 | Jetblue Airways£13862% OFF£361 £138
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DCA 12:3012h 50m1 stopsLGW 06:20Washington D.C. - London | Wed, Apr 30 | American Airlines£13962% OFF£361 £139
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DCA 11:0014h 20m1 stopsLGW 06:20Washington D.C. - London | Wed, Apr 2 | Delta Air Lines£13961% OFF£361 £139
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DCA 12:3712h 43m1 stopsLGW 06:20Washington D.C. - London | Wed, Apr 2 | American Airlines£14161% OFF£361 £141
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DCA 12:3712h 43m1 stopsLGW 06:20Washington D.C. - London | Tue, Apr 1 | American Airlines£14161% OFF£361 £141
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WAS 13:0017h 25m1 stopsLON Invalid DateWashington D.C. - London | Sat, Mar 15 | 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.
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
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.
Virgin Atlantic
United Airlines
British Airways
Icelandair
TAP Air Portugal
Delta Air Lines
Air Canada
Jetblue Airways
American Airlines
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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 £691. -
How long is the flight from Washington D.C. (WAS) to London (LON)?
It takes about 7 hours 25 minutes to fly from Washington D.C. (WAS) to London (LON). -
What is the transportation method from the main airport to downtown in London?
- The distance from Heathrow Airport to downtown is about 23km, by taxi about 40 minutes.
- The distance from London Gatwick Airport to downtown is about 39km, by taxi about 50 minutes.
- The distance from London Luton Airport to downtown is about 44km, by taxi about 1 hour.
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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): Air Canada, Copa Airlines, Swiss Airlines, Aer Lingus, Delta Air Lines, British Airways, Finnair, American Airlines, United Airlines, Lufthansa, Virgin Atlantic, Austrian Airlines and Air France. -
What's the most popular airline for direct flights from Washington D.C. (WAS) to London (LON)?
Austrian Airlines operates 17 direct flights from Washington D.C. (WAS) to London (LON). -
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 Tue, Mar 18, with one-way flights priced at just £290.
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.
Flight Information from Washington D.C. to London
| Cheapest direct flight price | £125 |
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| Cheapest return ticket price | £387 |
| Off-season travel month | February |
| Peak season for travel | June |
| Flight distance | 5,896.82km |
| Average flight time | 7 hours 25 minutes |
| Popular airline | American Airlines |
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