Flights from Washington, D.C. to London available from USD 425*

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

Dec 2024
FromUSD 506*
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)
Jan 29 2025 - Feb 23 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Jan 29 2025 - Feb 24 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Jan 30 2025 - Feb 04 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Jan 30 2025 - Feb 05 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Jan 30 2025 - Feb 06 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Jan 30 2025 - Feb 07 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Jan 30 2025 - Feb 08 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
Jan 30 2025 - Feb 10 2025
From
USD 506*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 25 2025 - Feb 06 2025
From
USD 430*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 21 2025 - Feb 01 2025
From
USD 510*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 07 2025 - Jan 14 2025
From
USD 510*
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jan 29 2025 - Feb 07 2025
From
USD 510*
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
FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Jun 10 2025 - Jun 13 2025

From

USD 506*

Viewed 2 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Jun 14 2025 - Jun 24 2025

From

USD 506*

Viewed 2 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Sep 14 2025 - Oct 03 2025

From

USD 569*

Viewed 22 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Sep 12 2025 - Sep 14 2025

From

USD 569*

Viewed 22 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Aug 23 2025 - Sep 02 2025

From

USD 569*

Viewed 2 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Aug 30 2025 - Sep 19 2025

From

USD 569*

Viewed 2 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Aug 19 2025 - Aug 31 2025

From

USD 569*

Viewed 2 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Sep 14 2025 - Oct 01 2025

From

USD 569*

Viewed 22 hrs ago

FromWashington, D.C. (IAD)ToLondon (LON)Round trip
/
Economy		Sep 14 2025 - Oct 08 2025

From

USD 569*

Viewed 22 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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