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Cheap flights from Washington, D.C. to London from R13 224

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Find the cheapest flights from Washington, D.C. to London

Cheap return flights

These are some of the best return flight deals from Washington, D.C. to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. to London.

Cheap last-minute flights

Planning a quick getaway from Washington, D.C. to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Washington, D.C. to London

Find recent round-trip train or bus tickets from Washington, D.C. to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
IAD-LHR
7h 20mdirect
LHR-IAD
8h 25mdirect
American Airlines
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IAD-LHR
7h 30mdirect
LHR-IAD
8h 40mdirect
IAD-LHR
7h 15mdirect
LHR-IAD
8h 35mdirect
Air Canada
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IAD-LHR
7h 20mdirect
LHR-IAD
8h 25mdirect
Aer Lingus
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IAD-LHR
7h 25mdirect
LHR-IAD
8h 35mdirect
Austrian Airlines
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IAD-LHR
7h 30mdirect
LHR-IAD
8h 40mdirect
Air France
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IAD-LHR
7h 30mdirect
LHR-IAD
8h 40mdirect
IAD-LHR
7h 15mdirect
LHR-IAD
8h 35mdirect
Copa Airlines
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IAD-LHR
7h 15mdirect
LHR-IAD
8h 35mdirect
IAD-LHR
7h 15mdirect
LHR-IAD
8h 35mdirect
United Airlines
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IAD-LHR
7h 20mdirect
LHR-IAD
8h 25mdirect
Finnair
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IAD-LHR
7h 20mdirect
LHR-IAD
8h 25mdirect
Iberia
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IAD-LHR
7h 25mdirect
LHR-IAD
8h 35mdirect
Lufthansa
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IAD-LHR
7h 30mdirect
LHR-IAD
8h 40mdirect
Virgin Atlantic
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IAD-LHR
7h 30mdirect
LHR-IAD
8h 40mdirect
Singapore Airlines
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IAD-LHR
7h 20mdirect
LHR-IAD
8h 25mdirect
British Airways
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IAD-LHR
7h 20mdirect
American Airlines
Find Deal
IAD-LHR
7h 30mdirect
IAD-LHR
7h 15mdirect
Air Canada
Find Deal
IAD-LHR
7h 20mdirect
Aer Lingus
Find Deal
IAD-LHR
7h 25mdirect
Austrian Airlines
Find Deal
IAD-LHR
7h 30mdirect
Air France
Find Deal
IAD-LHR
7h 30mdirect
IAD-LHR
7h 15mdirect
Copa Airlines
Find Deal
IAD-LHR
7h 15mdirect
IAD-LHR
7h 15mdirect
United Airlines
Find Deal
IAD-LHR
7h 20mdirect
Finnair
Find Deal
IAD-LHR
7h 20mdirect
Iberia
Find Deal
IAD-LHR
7h 25mdirect
Lufthansa
Find Deal
IAD-LHR
7h 30mdirect
Virgin Atlantic
Find Deal
IAD-LHR
7h 30mdirect
Singapore Airlines
Find Deal
IAD-LHR
7h 20mdirect
British Airways
Find Deal

How to get the cheapest flight ticket from Washington, D.C. to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Washington, D.C. to London?

January. The cheapest time of year to fly to London from Washington, D.C. is January. The most expensive is June.

What is the cheapest day to depart Washington, D.C. for London?

Friday. The cheapest day of the week is usually Friday. The most expensive is usually Friday.

How far in advance should you book Washington, D.C. to London flights?

23 days before. The cheapest time to buy a flight from Washington, D.C. to London is approximately 23 days to departure

How many flights depart from Washington, D.C. to London on average per day?

19 flights are operational weekly from Washington, D.C. to London as of October 2024. The most popular departure time for this route is 22:00, with 84% of flights per day taking off in the evening.

How many flights depart from Washington, D.C. to London on average per week?

As of October 2024, 135 flights take off from Washington, D.C. and land in London each week. The most common flight departure day for this route is Monday, with 20% of weekly flights taking off on this day.

How have Washington, D.C. to London flight prices changed over time?

As of October 2024, prices for Washington, D.C. to London flights are approximately 125% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to London

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. to London (WAS to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to London

Direct flights

None
There are no direct flights from Washington, D.C. to London. There are no popular flight routes from Washington, D.C. to London.

  • How far is Washington, D.C. to London by plane?

    A flight from Washington, D.C. to London will travel around 5893,9 km.

  • When did momondo last update prices for flights from Washington, D.C. to London?

    Prices for flights from Washington, D.C. to London were last updated today.

  • How old do you have to be to fly from Washington, D.C. to London?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to London?


Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Washington, D.C..

Can I find flights from Washington, D.C. to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to London?

Once all potential Washington, D.C. to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington, D.C. and alert you when they change.


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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London
Airports listed have a maximum distance of 49.5 km from London