Flights from Washington, D.C. to London available from USD 431*

Promo code

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

*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 (LHR)
Feb 26 2026 - Mar 02 2026
From
USD 518
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 10 2026 - Jan 16 2026
From
USD 518
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Mar 05 2026 - Mar 13 2026
From
USD 518
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 21 2026 - Jan 29 2026
From
USD 518
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 24 2026 - Jan 30 2026
From
USD 519
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Mar 05 2026 - Mar 14 2026
From
USD 530
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 05 2026 - Feb 12 2026
From
USD 582
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 11 2026 - Feb 18 2026
From
USD 582
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Mar 04 2026 - Mar 09 2026
From
USD 515
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Mar 04 2026 - Mar 17 2026
From
USD 515
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Mar 05 2026 - Mar 09 2026
From
USD 515
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Mar 05 2026 - Mar 12 2026
From
USD 515
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		Jul 07 2026 - Jul 22 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 07 2026 - Jul 28 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 07 2026 - Jul 29 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 08 2026 - Jul 22 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 08 2026 - Jul 23 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 08 2026 - Jul 28 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 14 2026 - Jul 29 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 15 2026 - Jul 29 2026

From

USD 757

Viewed 20 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 21 2026 - Jul 28 2026

From

USD 757

Viewed 20 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.