Flights from Washington, D.C. to London available from USD 518*

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)
Nov 17 2025 - Nov 23 2025
From
USD 522
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Nov 25 2025 - Dec 02 2025
From
USD 555
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Nov 12 2025 - Nov 20 2025
From
USD 686
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Nov 09 2025 - Nov 15 2025
From
USD 736
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Nov 07 2025 - Nov 12 2025
From
USD 736
Round trip
Economy

Washington, D.C. (IAD)to

London (LHR)
Sep 16 2025 - Sep 20 2025
From
USD 928
Round trip
Economy

Washington, D.C. (IAD)to

London (LGW)
Oct 04 2025 - Oct 10 2025
From
USD 518
Round trip
Economy

Washington, D.C. (IAD)to

London (LGW)
Dec 10 2025 - Dec 17 2025
From
USD 622
Round trip
Economy

Washington, D.C. (IAD)to

London (LGW)
Sep 17 2025 - Sep 19 2025
From
USD 1,028
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Nov 18 2025 - Nov 25 2025
From
USD 518
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Nov 18 2025 - Dec 09 2025
From
USD 518
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Nov 18 2025 - Dec 11 2025
From
USD 518
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		Mar 16 2026 - Mar 20 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 17 2026 - Mar 21 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 20 2026 - Mar 24 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 15 2026 - Mar 24 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 17 2026 - Mar 24 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 15 2026 - Mar 20 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 16 2026 - Mar 21 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 16 2026 - Mar 24 2026

From

USD 518

Viewed 9 hrs ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Mar 18 2026 - Mar 24 2026

From

USD 518

Viewed 9 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.