Flights from London to Washington, D.C. available from GBP 506*

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

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Fly in the next three months: flights from London to Washington, D.C.

GBP

London (LON)to

Washington, D.C. (IAD)
01 05 2025 - 06 05 2025
From
GBP 511
Round trip
/
Economy

London (LON)to

Washington, D.C. (IAD)
01 05 2025 - 11 05 2025
From
GBP 511
Round trip
/
Economy

London (LON)to

Washington, D.C. (IAD)
01 05 2025 - 12 05 2025
From
GBP 511
Round trip
/
Economy

London (LON)to

Washington, D.C. (IAD)
06 05 2025 - 11 05 2025
From
GBP 511
Round trip
/
Economy

London (LON)to

Washington, D.C. (IAD)
06 05 2025 - 13 05 2025
From
GBP 511
Round trip
/
Economy

London (LON)to

Washington, D.C. (IAD)
08 05 2025 - 11 05 2025
From
GBP 511
Round trip
/
Economy

London (LON)to

Washington, D.C. (IAD)
08 05 2025 - 13 05 2025
From
GBP 511
Round trip
/
Economy

London (LON)to

Washington, D.C. (IAD)
10 05 2025 - 11 05 2025
From
GBP 511
Round trip
/
Economy

London (LGW)to

Washington, D.C. (IAD)
01 06 2025 - 08 06 2025
From
GBP 605
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 London to Washington, D.C. with Icelandair

GBP
Plan ahead for your trip from London to Washington, D.C. with Icelandair
From
To
Fare type
Dates
Price
London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 19 01 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 22 01 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 27 01 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 28 01 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 02 02 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 20 01 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 21 01 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 04 02 2026

From

GBP 555

Viewed 1 day ago

London (LON)Washington, D.C. (IAD)Round trip
/
Economy
13 01 2026 - 09 02 2026

From

GBP 555

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 London to Washington, D.C.

Choose Icelandair to fly from London (LHR/LGW) to Washington, D.C. (IAD). Enjoy our refreshing travel experience, which includes hundreds of hours of movies and music in our in-seat entertainment system, USB chargers in every seat and Wi-Fi access. You'll enjoy an easy transit at our Keflavik hub and one of the shortest flying times between North America and Europe.

The Heartbeat of History

The North-East corner of the United States is the birthplace of the nation and you would be hard pressed to find an American city where history is as vividly present as in Washington, D.C. A visit to the National Mall is unmissable, both for first-time visitors as it has a plethora of landmarks to experience as well as for returning guests as there is always something new to discover. Ask “Honest Abe” for inspiration at the Lincoln Memorial, visit the Thomas Jefferson Memorial or gaze in awe at the great Washington Monument Obelisk, the tallest monumental column in the world standing at almost 555 feet.

But there’s so much more to the National Mall than mere memorials and monuments. History comes alive in all 23 institutions of the Smithsonian and a visit to the National Gallery of Art will leave you awestruck. Don’t forget to visit the United States Capitol Building and then there is the White House itself, the world’s most famous presidential residence by far. Grab a bike-for-rent and explore the sights at your convenience, swiftly and safely.

The Wharf On the Waterfront

Washington D.C. may be situated inland but it is nonetheless a waterfront city, thanks to the Potomac river. Among the most vibrant and interesting neighborhoods to visit is the Wharf, a lively mile-long stretch along the river with numerous exciting retailers, interesting restaurants, and the nation’s oldest operating fish market. With multiple intimate music venues and the award-winning Anthem Concert Hall, there is something for everyone when it comes to the performance arts.

Georgetown on my mind

With lovely cobblestone streets full of beautiful row houses, Georgetown is a quintessential part of the city for any visitor. Good restaurants, interesting shops, not to mention a gorgeous park along the waterfront. As Washington’s oldest section, this pre-revolutionary part of town has more than its share of tales of the eerie and unexplained, and if ghost stories float your boat then check out the free walking tours where historians offer an insight to some lesser known chapters of the city’s past.

Add a stopover in Iceland to your journey

Passengers flying from London to Washington D.C. with Icelandair have the option to stopover in Iceland. Pack more experience into your travel by adding a stopover on our island to your journey, for anywhere from 1 to 7 days and at no additional airfare. You will have the opportunity to explore Iceland's lava fields, glacial lagoons, geyser, waterfalls and caves, and to visit the charming capital of Reykjavik.