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Cheap flights from London to Washington, D.C. from R11 035

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

Cheap return flights

These are some of the best return flight deals from London to Washington, D.C. 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 London to Washington, D.C..

Cheap last-minute flights

Planning a quick getaway from London to Washington, D.C.? 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 Washington, D.C., so you can enjoy a seamless trip without stopovers.

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

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

All round-trip flight deals to Washington, D.C.

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

See travel insights to Washington, D.C. from

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

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 to Washington, D.C.?

In general, February is the cheapest month to fly from London to Washington, D.C.. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around R10 834. If you aren’t able to travel during the month of February, then book flights to Washington, D.C. from London during January instead. Flights to Washington, D.C. in January, while not as cheap as those in February, still average around R11 474.

What is the cheapest day to depart on your flight to Washington, D.C.?

The cheapest day to depart from London to Washington, D.C. is on a Monday. Travellers who choose to depart for Washington, D.C. on a Monday will often find tickets for as low as R0. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London to Washington, D.C. for around R14 328.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

Flying to Washington, D.C. from London at midday is the least expensive time of day to depart. momondo users have found prices as low as R0 when looking at flights departing at midday. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are R15 270 on average. Flights to Washington, D.C. from London in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London to Washington, D.C. flight route?

Fly from London Heathrow to Washington, D.C. Dulles Intl for the best London - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

In general, most travellers find the cheapest time to book a flight to Washington, D.C. is about 60 days prior to their departure date, when tickets on average are R14 922. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as R240 119.

What cabin class options are available on London to Washington, D.C. flights?

There are 1 cabin classes available to choose from on London to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of December 2024, prices for London to Washington, D.C. flights are approximately 14% more expensive when compared to flights at the same time last year.

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

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

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

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

Direct flights

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

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

    London and Washington, D.C. are 5893,9 km apart from one another.

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

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

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

    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 London to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. 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 London to Washington, D.C.?


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Washington, D.C. from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential London to Washington, D.C. 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 London to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 36.1 km from Washington, D.C.