Flights from Washington, D.C. to London available from USD 617*

Promo code

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

Jun 2025
FromUSD 900*
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)
Sep 02 2025 - Oct 01 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Sep 04 2025 - Oct 01 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Sep 08 2025 - Oct 01 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Sep 08 2025 - Oct 08 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Sep 09 2025 - Oct 01 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Sep 09 2025 - Oct 08 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Sep 11 2025 - Oct 01 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LON)
Sep 01 2025 - Oct 01 2025
From
USD 624
Round trip
Economy

Washington, D.C. (IAD)to

London (LGW)
Jul 10 2025 - Jul 17 2025
From
USD 1,050
Round trip
Economy

Washington, D.C. (IAD)to

London (LGW)
Jul 10 2025 - Jul 15 2025
From
USD 1,696
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		Jan 12 2026 - Jan 21 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 12 2026 - Jan 26 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 12 2026 - Jan 28 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 12 2026 - Jan 29 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 13 2026 - Jan 20 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 13 2026 - Jan 21 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 13 2026 - Jan 28 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 13 2026 - Jan 29 2026

From

USD 617

Viewed 1 day ago

Washington, D.C. (IAD)London (LON)Round trip
/
Economy		Jan 13 2026 - Feb 02 2026

From

USD 617

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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