Flights from Washington, D.C. to London available from USD 515*

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

Apr 2025
FromUSD 601*
Fare: Round trip/Economy
Displaying fares for April-2025
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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 (LHR)
Jul 08 2025 - Aug 25 2025
From
USD 602
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Apr 26 2025 - May 01 2025
From
USD 683
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Apr 27 2025 - May 01 2025
From
USD 735
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
May 11 2025 - May 17 2025
From
USD 740
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
May 12 2025 - May 16 2025
From
USD 815
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Jul 08 2025 - Jul 16 2025
From
USD 960
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
May 24 2025 - May 28 2025
From
USD 1,140
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LHR)
Apr 18 2025 - Apr 25 2025
From
USD 1,241
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
May 03 2025 - May 08 2025
From
USD 550
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
May 03 2025 - May 09 2025
From
USD 550
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
May 03 2025 - May 10 2025
From
USD 550
Round trip
/
Economy

Washington, D.C. (IAD)to

London (LON)
May 03 2025 - May 20 2025
From
USD 550
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		Oct 16 2025 - Oct 21 2025

From

USD 515

Viewed 1 day ago

Washington, D.C. (IAD)London (LHR)Round trip
/
Economy		Jan 09 2026 - Jan 30 2026

From

USD 537

Viewed 1 day ago

Washington, D.C. (IAD)London (LHR)Round trip
/
Economy		Mar 01 2026 - Mar 08 2026

From

USD 539

Viewed 18 hrs ago

Washington, D.C. (IAD)London (LHR)Round trip
/
Economy		Dec 19 2025 - Dec 23 2025

From

USD 1,178

Viewed 2 days ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 13 2025 - Oct 28 2025

From

USD 535

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 13 2025 - Oct 31 2025

From

USD 535

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 13 2025 - Nov 01 2025

From

USD 535

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 13 2025 - Nov 02 2025

From

USD 535

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Oct 13 2025 - Nov 07 2025

From

USD 535

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.

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