Cheap flights from Washington (WAS) to London (LON)

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Lowest round trip fares by airline from Washington and London

Cheapest prices ($334 One Way, $472 Round Trip) found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Sat, Apr 25 - Thu, May 7
IAD
Washington
LGW
London
$472 Roundtrip, found 4 days ago
$472
Roundtrip
found 4 days ago
Select TAP Portugal flight, departing Sat, Apr 25 from Washington to London, returning Thu, May 7, priced at $472 found 4 days ago
Tue, Apr 7 - Mon, Apr 13
BWI
Baltimore
LHR
London
$615 Roundtrip, found 6 days ago
$615
Roundtrip
found 6 days ago
Select Icelandair flight, departing Tue, Apr 7 from Baltimore to London, returning Mon, Apr 13, priced at $615 found 6 days ago
Sun, Apr 19 - Wed, Apr 22
IAD
Washington
LHR
London
$638 Roundtrip, found 1 day ago
$638
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, Apr 19 from Washington to London, returning Wed, Apr 22, priced at $638 found 1 day ago
Mon, Mar 30 - Fri, Apr 3
DCA
Washington
LHR
London
$685 Roundtrip, found 2 days ago
$685
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Mon, Mar 30 from Washington to London, returning Fri, Apr 3, priced at $685 found 2 days ago
Tue, Mar 24 - Tue, Mar 31
IAD
Washington
LHR
London
$713 Roundtrip, found 5 days ago
$713
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Mar 24 from Washington to London, returning Tue, Mar 31, priced at $713 found 5 days ago

Fly From Washington to London

Origin
Washington
Destination
London
Number of Daily Flights
Earliest Flight Departure Date
Latest Flight Departure Date
Popular Airlines

Cheap flights from Washington DC to London

It doesn't matter if you're arriving in London on business or pleasure; just like in the U.S. capital, there is always something fun to see or do in London; a city that combines modern marvels with centuries of tradition.

After the rental car agent at London Heathrow Airport (LHR) hands you the keys, get used to driving on the left side of the road on your way to the Tower of London, passing Big Ben on the way. By car, you can reach Buckingham Palace in about 45 minutes, direct from the airport.

Key Facts

While staying in the city, you'll want to visit 221B Baker Street, the fictional home of Sherlock Holmes, and currently a museum to the character. If you are interested in something from this century, the London Eye is waiting on the banks of the Thames River. Built for the millennial celebration, this Ferris wheel features 32 glass capsules that hold 25 people each. The wheel takes 30 minutes to make one rotation, offering stunning views of the city.

Hints and Tips

The flight time from Washington Dulles International Airport (IAD), to London Heathrow Airport (LHR) is around eight hours. Heathrow Airport is a hub for many continuing international flights.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.