Flights from Washington, D.C. to London available from USD 432*

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 02 2026 - Feb 11 2026
From
USD 477
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 03 2026 - Feb 11 2026
From
USD 477
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 01 2026 - Feb 09 2026
From
USD 616
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 02 2026 - Feb 09 2026
From
USD 835
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 31 2026 - Feb 09 2026
From
USD 863
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 08 2026 - Feb 12 2026
From
USD 983
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 14 2026 - Feb 19 2026
From
USD 522
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Feb 02 2026 - Feb 06 2026
From
USD 780
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Feb 04 2026 - Feb 22 2026
From
USD 517
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Feb 05 2026 - Feb 21 2026
From
USD 517
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Feb 05 2026 - Feb 22 2026
From
USD 517
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Feb 05 2026 - Feb 23 2026
From
USD 517
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 (LHR)Round trip
/
Economy		Aug 19 2026 - Aug 26 2026

From

USD 1,019

Viewed 1 day ago

Washington, D.C. (IAD)London (LHR)Round trip
/
Economy		Oct 24 2026 - Oct 30 2026

From

USD 745

Viewed 2 days ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jul 24 2026 - Aug 24 2026

From

USD 639

Viewed 1 day ago

Washington, D.C. (IAD)London (LHR)Round trip
/
Economy		Aug 03 2026 - Aug 12 2026

From

USD 1,626

Viewed 2 hrs ago

Washington, D.C. (IAD)London (LHR)Round trip
/
Economy		Aug 03 2026 - Aug 11 2026

From

USD 2,022

Viewed 2 hrs ago

Washington, D.C. (IAD)London (LGW)Round trip
/
Economy		Aug 04 2026 - Aug 11 2026

From

USD 1,991

Viewed 2 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 20 2026 - Oct 29 2026

From

USD 641

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 20 2026 - Nov 04 2026

From

USD 641

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 20 2026 - Nov 05 2026

From

USD 641

Viewed 1 day 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.