Cheap flights from London to Washington DC

from as little as £409

8 nights in Washington DC, departing London Gatwick on 17 / Nov / 2023 with Icelandair (price found 20 hours ago)

Subject to availability, prices correct of the last 24 hours
Washington DC

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The London / Washington DC route

All 5936 km of it

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Washington DC flight facts

What you need to know

Alternative flights from the UK to Washington DC

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Alternative flights from London

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Washington DC

Today alone, Netflights has searched over 49,236 flights. 17 / Nov / 2023 is currently the lowest priced day of the year to fly the London/Washington DC route. There are around 6,050 flights on any given week from the UK to Washington DC and the cheapest month to fly right now is November.

Min / Max Temperature (°C)

-3 °C


13 °C


31 °C

Rainfall (mm)

73 mm


91.9 mm


126 mm

Key facts about Washington DC

How to get cheap flights from London to Washington DC

Tips and advice from our flight experts

With Netflights, you can compare lots of flights to Washington DC in the USA. It's free and easy. We've gone through the 6,050 weekly flights connecting London and Washington DC, operated by 20 airlines – so you can see all your options before you book.

There are actually two airports in Washington DC. We've scanned all of the flights into Washington DC and, on average, the cheapest airport to fly into is Washington DC Washington Dulles International Airport (IAD). Look out for flights with Air Canada too, as they tend to have the cheapest prices.

The cheapest airport to fly from is London Gatwick, but we recommend booking in advance to get a good price.

On average, the 5936 km flight from London to Washington DC takes 11 hrs 55 mins. If you're landing late, why not take a look at hotels near the airport? We've got a range of accommodation and car hire options across the USA.

Other popular destinations near Washington DC

Where other people are flying to

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