Flights from Washington, D.C. to London available from USD 543*

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Our best rates from Washington, D.C. to London

May 2025
FromUSD 717*
Fare: Round trip/Economy
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*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking

Fly in the next three months: flights from Washington, D.C. to London

USD

Washington, D.C. (IAD)to

London (LON)
Jul 30 2025 - Aug 19 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Aug 02 2025 - Aug 19 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Aug 02 2025 - Aug 22 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Aug 02 2025 - Aug 29 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Aug 02 2025 - Aug 31 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Aug 02 2025 - Sep 01 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Aug 02 2025 - Sep 02 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Aug 03 2025 - Aug 20 2025
From
USD 557
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jul 22 2025 - Aug 14 2025
From
USD 666
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jul 20 2025 - Aug 13 2025
From
USD 689
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jun 10 2025 - Jun 16 2025
From
USD 754
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Aug 05 2025 - Aug 17 2025
From
USD 766
Round trip
/
Economy

*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

 

Blue image with a map of Iceland and text that reads: Include a little more of Iceland in your journey. Add a Stopover

Plan ahead for your trip from Washington, D.C. to London with Icelandair

USD
Plan ahead for your trip from Washington, D.C. to London with Icelandair
From
To
Fare type
Dates
Price
Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 07 2025 - Nov 12 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 07 2025 - Nov 14 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 07 2025 - Nov 18 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 07 2025 - Nov 24 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 07 2025 - Dec 06 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 07 2025 - Dec 07 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 07 2025 - Dec 08 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 08 2025 - Nov 14 2025

From

USD 543

Viewed 21 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Nov 08 2025 - Nov 17 2025

From

USD 543

Viewed 21 hrs ago

*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking. We display fares for Economy Light as standard but it is possible to change your class of service during the booking process. You can also add baggage, meals and extra legroom to your trip during booking.

Flights from Washington, D.C. to London

Experience England’s iconic, eclectic capital with our flights from Washington, D.C. to London. With some of the shortest transatlantic flight times and cozy blankets and pillows onboard, you’ll arrive refreshed and ready to take in the city.

Plus, with Wi-Fi available across most of our fleet, you can stay connected in the clouds.

 

FAQs about travel from Washington, D.C. to London

Helpful information for travelers visiting London

What is the distance from Washington, D.C. to London, UK?

The distance between Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR), is approximately 5,900 km or 3,700 miles.

How long is the flight from Washington, D.C. to London?

The Washington, D.C. to London flight time is usually around 7 hours 20 minutes. However, this does not account for any stopovers on your journey. Icelandair passengers traveling from Washington, D.C. to London will have a layover at Keflavík, so you can stretch your legs and get some fresh air.

How can I find cheap flights from Washington, D.C. to London?

Booking your flights during London’s off-season (January-April and September-November) can help you find cheap tickets from Washington, D.C. to London. For our latest offers, check out our latest flight deals.

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