Cheap flights from Washington DC to London

Q: What are the cheapest airlines?

Air Canada, Delta Air Lines, Icelandair, KLM, Lufthansa. These airlines usually offer the cheapest flights from Washington DC to London.

Q: Can I fly direct to London?

Delta Air Lines, KLM, Virgin Atlantic, Iberia Airlines, British Airways. You can fly non-stop from Washington DC to London with these airlines.

Q: What airlines fly indirectly?

Lufthansa, Air Canada, Icelandair, KLM, Virgin Atlantic. These airlines fly from Washington DC to London, but you’ll have at least one layover.

Q: How long is the flight?

7 hrs 10 mins. This is the shortest flight time from Washington DC to London.

from as little as £452

20 nights in London, departing Washington DC Washington Dulles International Airport on 31 / Jan / 2025 with Icelandair (price found 43 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from Washington DC to London

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The Washington DC / London route

All 5936 km of it

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London flight facts

What you need to know

What are the cheapest airlines?

Air Canada
Delta Air Lines
Icelandair
KLM
Lufthansa

These airlines usually offer the cheapest flights from Washington DC to London.

Can I fly direct to London?

Delta Air Lines
KLM
Virgin Atlantic
Iberia Airlines
British Airways

You can fly non-stop from Washington DC to London with these airlines.

What airlines fly indirectly?

Lufthansa
Air Canada
Icelandair
KLM
Virgin Atlantic

These airlines fly from Washington DC to London, but you’ll have at least one layover.

How long is the flight?

7 hrs 10 mins

This is the shortest flight time from Washington DC to London.

Alternative flights from the UK to London

Check out prices for other routes

Washington DC Washington Dulles International Airport to London

from £452 pp

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Alternative flights from Washington DC

You might find cheaper flights nearby

London City Airport from Washington DC

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London Gatwick from Washington DC

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London Heathrow from Washington DC

from £452 pp

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31 / Jan / 2025 is currently the lowest priced day of the year to fly the Washington DC/London route. There are around 162 flights on any given week from the UK to London and the cheapest month to fly right now is January.

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Key facts about London

Currency

British pound

Language

English

Timezone

0 hrs behind GMT

How to get cheap flights from Washington DC to London

Tips and advice from our flight experts

Netflights is free and simple to use. You can view all 162 of the weekly flights to or via London, flown by 11 airlines. Having them all in one place makes it easy to compare prices and find the best deal for you.

Did you know that London has three airports? Usually, the cheapest airport to fly into is London Heathrow (LHR), but we've compared all the different options to help you find the best price for your dates. The cheapest airline to fly with is normally Icelandair, but keep an eye out for other options too.

To get the best price, we recommend you book in advance. Washington DC Washington Dulles International Airport is usually the cheapest airport to fly out from so, if you’re flying from there, you should be able to get a good deal.

It's 5936 km from Washington DC to London, and the flight takes around 10 hrs 20 mins. Need somewhere to stay when you get there? You can add also accommodation and car hire to your London booking on Netflights.