Which layover airport has the shortest travel time from Washington, D.C. Reagan-National Airport to London?

Flights connecting via Montreal (YUL) have the shortest average one-way travel time: 9h 20m.

What airlines fly to London?

JetBlue, American Airlines and British Airways are the top three most popular airlines that fly to London from Washington, D.C. Reagan-National Airport according to our data. JetBlue is the first choice among our users, with 34% of people opting to fly with this airline when traveling to London. Keep in mind that there are 7 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Washington, D.C. Reagan-National Airport and London?

New York (JFK) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Washington, D.C. Reagan-National Airport to London?

Montreal (YUL) has the shortest average layover time for this route: 1h 26m.

Which layover airport offers the lowest fares from Washington, D.C. Reagan-National Airport to London?

Flights via Newark (EWR) offer the lowest average round-trip price of $687.

What is the cheapest airline that flies from Washington, D.C. Reagan-National to London?

JetBlue, Scandinavian Airlines, and United Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to London

How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to London?

As of March 2026, there are 7 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to London.

How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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 layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to London.

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

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$358 Cheap Flights from Washington, D.C. Reagan-National Airport to London in 2026

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Find the cheapest flights from Washington, D.C. Reagan-National Airport to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:00 am - 6:30 am

DCA

LHR

14h 30m

1 stop

12:05 pm - 7:58 pm

LHR

DCA

12h 53m

1 stop

$707Air Canada

Sun, Apr 26 - Fri, May 1

12:55 pm - 6:30 am

DCA

LHR

12h 35m

1 stop

2:05 pm - 9:55 pm

LHR

DCA

12h 50m

1 stop

$729Air Canada

Mon, Apr 6 - Tue, Apr 14

6:00 am - 6:20 am

DCA

LGW

19h 20m

1 stop

1:05 pm - 10:59 pm

LGW

DCA

14h 54m

1 stop

$739Multiple Airlines

Thu, May 7 - Thu, May 14

12:55 pm - 6:30 am

DCA

LHR

12h 35m

1 stop

2:05 pm - 9:55 pm

LHR

DCA

12h 50m

1 stop

$748Air Canada

Mon, Apr 13 - Mon, Apr 27

6:59 am - 9:20 pm

DCA

STN

33h 21m

3 stops

6:30 am - 8:53 am

STN

DCA

31h 23m

3 stops

$750Multiple Airlines

Wed, Jun 3 - Thu, Jun 11

6:00 am - 8:45 pm

DCA

LHR

9h 45m

1 stop

8:15 am - 10:59 pm

LHR

DCA

19h 44m

1 stop

$768JetBlue

Sat, Apr 25 - Sat, May 2

6:00 am - 8:45 pm

DCA

LHR

9h 45m

1 stop

8:15 am - 10:59 pm

LHR

DCA

19h 44m

1 stop

$781JetBlue

Mon, Apr 20 - Mon, May 4

2:59 pm - 10:40 am

DCA

LGW

14h 41m

1 stop

10:45 am - 11:34 pm

LGW

DCA

17h 49m

1 stop

$800British Airways

Tue, Apr 21 - Tue, Apr 28

11:17 am - 6:50 am

DCA

LGW

14h 33m

1 stop

10:45 am - 8:59 pm

LGW

DCA

15h 14m

1 stop

$801British Airways

Sun, Apr 26 - Wed, May 6

10:27 am - 8:40 am

DCA

LGW

17h 13m

1 stop

12:20 pm - 11:59 pm

LGW

DCA

16h 39m

2 stops

$810American Airlines

Wed, Sep 2 - Wed, Sep 9

Scandinavian Airlines flights from Washington, D.C. Reagan-National Airport to London

Our best Scandinavian Airlines deals on Washington, D.C. Reagan-National Airport to London flight tickets

Scandinavian Airlines

Apr 20

DCA11:00 amWashington, D.C. Reagan-National

22h 35m

2 stops

LHR2:35 pmLondon Heathrow

May 11

LHR7:50 pmLondon Heathrow

32h 34m

2 stops

DCA11:24 pmWashington, D.C. Reagan-National

$788

Scandinavian Airlines

Apr 20

DCA11:00 amWashington, D.C. Reagan-National

17h 35m

2 stops

LHR9:35 amLondon Heathrow

Apr 24

LHR7:05 amLondon Heathrow

20h 36m

2 stops

DCA10:41 pmWashington, D.C. Reagan-National

$791

Scandinavian Airlines

Apr 27

DCA11:00 amWashington, D.C. Reagan-National

17h 35m

2 stops

LHR9:35 amLondon Heathrow

May 6

LHR7:05 amLondon Heathrow

20h 36m

2 stops

DCA10:41 pmWashington, D.C. Reagan-National

$796

Air Canada flights from Washington, D.C. Reagan-National Airport to London

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to London flight tickets

Air Canada

Apr 26

DCA11:00 amWashington, D.C. Reagan-National

14h 30m

1 stop

LHR6:30 amLondon Heathrow

May 1

LHR12:05 pmLondon Heathrow

12h 53m

1 stop

DCA7:58 pmWashington, D.C. Reagan-National

$707

Air Canada

Apr 6

DCA12:55 pmWashington, D.C. Reagan-National

12h 35m

1 stop

LHR6:30 amLondon Heathrow

Apr 14

LHR2:05 pmLondon Heathrow

12h 50m

1 stop

DCA9:55 pmWashington, D.C. Reagan-National

$729

Air Canada

Apr 22

DCA11:00 amWashington, D.C. Reagan-National

14h 30m

1 stop

LHR6:30 amLondon Heathrow

Apr 29

LHR2:05 pmLondon Heathrow

12h 50m

1 stop

DCA9:55 pmWashington, D.C. Reagan-National

$750

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Sun 4/26

11:00 am-6:30 am

1 stop14h 30m

London Heathrow

Fri 5/1

12:05 pm-7:58 pm

1 stop12h 53m

$707

Quickest round-trip

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 4/6

12:55 pm-6:30 am

1 stop12h 35m

London Heathrow

Tue 4/14

2:05 pm-9:55 pm

1 stop12h 50m

$729

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Thu 5/7

6:00 am-6:20 am

1 stop19h 20m

London Gatwick

Thu 5/14

1:05 pm-10:59 pm

1 stop14h 54m

$739

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 4/13

12:55 pm-6:30 am

1 stop12h 35m

London Heathrow

Mon 4/27

2:05 pm-9:55 pm

1 stop12h 50m

$748

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Wed 6/3

6:59 am-9:20 pm

3 stops33h 21m

London Stansted

Thu 6/11

6:30 am-8:53 am

3 stops31h 23m

$750

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Sat 4/25

6:00 am-8:45 pm

1 stop9h 45m

London Heathrow

Sat 5/2

8:15 am-10:59 pm

1 stop19h 44m

$768

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 4/20

6:00 am-8:45 pm

1 stop9h 45m

London Heathrow

Mon 5/4

8:15 am-10:59 pm

1 stop19h 44m

$781

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 4/21

2:59 pm-10:40 am

1 stop14h 41m

London Gatwick

Tue 4/28

10:45 am-11:34 pm

1 stop17h 49m

$800

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Sun 4/26

11:17 am-6:50 am

1 stop14h 33m

London Gatwick

Wed 5/6

10:45 am-8:59 pm

1 stop15h 14m

$801

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 9/2

10:27 am-8:40 am

1 stop17h 13m

London Gatwick

Wed 9/9

12:20 pm-11:59 pm

2 stops16h 39m

$810

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport 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

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Washington, D.C. Reagan-National Airport is in September. Flight prices, which tend to average around $630, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $639.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $754. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $875. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Washington, D.C. Reagan-National Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $800 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $812. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $853 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Washington, D.C. Reagan-National Airport for as low as $658 on momondo.

Can stopping save me money on Washington, D.C. Reagan-National Airport to London flights?

You could potentially save up to 1% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to London flight.

When to book flights from Washington, D.C. Reagan-National Airport to London

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

Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to London (DCA to LON) flight deals and tips

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

Fastest flight time	9h 28m
Direct flights	None

The fastest flight from Washington, D.C. Reagan-National Airport to London takes 9h 28m

There are no direct flights from Washington, D.C. Reagan-National Airport to London. There are no popular flight routes from Washington, D.C. Reagan-National Airport to London.

Search flight deals

How far is Washington, D.C. Reagan-National to London by plane?
A flight from Washington, D.C. Reagan-National to London will travel around 3664.8 mi. In terms of flight time, this usually takes a little over 9h 28m.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to London?
Prices for flights from Washington, D.C. Reagan-National Airport to London were last updated today.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to London?
As of March 2026, there are 7 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to London.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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 layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. Reagan-National Airport to London?
Based on momondo bookings for flights between Washington, D.C. Reagan-National Airport and London, the leading airline is British Airways, making up 37% of the total bookings. Other popular airlines include American Airlines with 35% and JetBlue with 29%.

Best airlines flying from Washington, D.C. Reagan-National Airport to London

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to London with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $231	Free Cancellation	Rating 7.2 2,909 reviews	Search JetBlue flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.1 11,519 reviews	Search American Airlines flights
Iberia	PriceFrom $527	Free Cancellation	Rating 7.0 3,157 reviews	Search Iberia flights
British Airways	PriceFrom $529	Free Cancellation	Rating 6.7 7,825 reviews	Search British Airways flights
Delta	PriceFrom $558	Free Cancellation	Rating 7.9 8,353 reviews	Search Delta flights
United Airlines	PriceFrom $598	Free Cancellation	Rating 7.4 9,500 reviews	Search United Airlines flights
Virgin Atlantic	PriceFrom $626	Free Cancellation	Rating 7.5 685 reviews	Search Virgin Atlantic flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Crawley

Slough

Wembley

Hayes

Croydon

Dartford

Brentwood

Guildford

Harrow

Cobham

Folkestone

Romford

Stansted

Watford

Richmond

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 you have performed a search for Washington, D.C. to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to London from Washington, D.C.. 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.

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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London Stansted Airport

Cheap flights from Washington, D.C. Reagan-National Airport to London from $358

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Find the cheapest flights from Washington, D.C. Reagan-National Airport to London

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Scandinavian Airlines flights from Washington, D.C. Reagan-National Airport to London

Our best Scandinavian Airlines deals on Washington, D.C. Reagan-National Airport to London flight tickets

Air Canada flights from Washington, D.C. Reagan-National Airport to London

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to London flight tickets

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Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to London

What is the typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and London?

What is the cheapest month to fly to London?

What is the cheapest day to depart on your flight to London?

What is the cheapest time of day to depart on your flight to London?

How far in advance should I book a flight to London?

Can stopping save me money on Washington, D.C. Reagan-National Airport to London flights?

What is the cheapest airline that flies from Washington, D.C. Reagan-National to London?

What airlines fly to London?

Which airport is the most popular layover for flights between Washington, D.C. Reagan-National Airport and London?

Which layover airport offers the lowest fares from Washington, D.C. Reagan-National Airport to London?

Which layover airport has the shortest travel time from Washington, D.C. Reagan-National Airport to London?

Which layover airport has the shortest connection time from Washington, D.C. Reagan-National Airport to London?

When to book flights from Washington, D.C. Reagan-National Airport to London

Cheap Washington, D.C. Reagan-National Airport to London (DCA to LON) flight deals and tips

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

Fastest flight time

Direct flights

Best airlines flying from Washington, D.C. Reagan-National Airport to London

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to London with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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 35.6 mi from London

Fly your favorite airline to London

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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