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: 42% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to London?

British Airways, JetBlue and American Airlines are the top three most popular airlines that fly to London from Washington, D.C. Reagan-National Airport according to our data. British Airways is the first choice among our users, with 35% of people opting to fly with this airline when traveling to London. Keep in mind that there are 8 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

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

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

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

Flights via Montreal (YUL) offer the lowest average round-trip price of $715.

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.

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

As of December 2025, there are 8 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.

$379 Cheap Flights from Washington, D.C. Reagan-National Airport to London in 2025/26

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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.

6:00 am - 6:00 am

DCA

LGW

19h 00m1 stop

1:00 pm - 10:47 pm

LGW

DCA

14h 47m1 stop

$584Multiple Airlines

Wed, Feb 4 - Wed, Feb 11

6:00 am - 8:10 pm

DCA

LTN

33h 10m3 stops

8:50 pm - 3:33 pm

LTN

DCA

23h 43m3 stops

$585Multiple Airlines

Mon, Jan 19 - Mon, Jan 26

6:00 am - 9:40 pm

DCA

LHR

10h 40m1 stop

9:20 am - 4:04 pm

LHR

DCA

11h 44m1 stop

$604JetBlue

Thu, Feb 5 - Thu, Feb 12

8:20 am - 7:30 am

DCA

LGW

18h 10m1 stop

11:20 am - 9:00 pm

LGW

DCA

14h 40m1 stop

$614British Airways

Wed, Jan 21 - Sat, Feb 21

1:00 pm - 6:55 am

DCA

LHR

12h 55m1 stop

9:20 am - 5:49 pm

LHR

DCA

13h 29m1 stop

$614JetBlue

Fri, Jan 30 - Fri, Feb 27

6:30 am - 7:30 am

DCA

LGW

20h 00m1 stop

11:20 am - 11:36 pm

LGW

DCA

17h 16m1 stop

$616American Airlines

Fri, Feb 6 - Wed, Feb 18

6:30 am - 7:30 am

DCA

LGW

20h 00m1 stop

11:20 am - 11:59 pm

LGW

DCA

17h 39m2 stops

$620American Airlines

Tue, Feb 3 - Wed, Feb 25

8:20 am - 7:30 am

DCA

LGW

18h 10m1 stop

10:45 am - 9:30 pm

LGW

DCA

15h 45m1 stop

$630British Airways

Mon, Jan 26 - Tue, May 12

1:30 pm - 8:50 am

DCA

LCY

14h 20m2 stops

7:50 am - 6:57 pm

LCY

DCA

16h 07m2 stops

$948Iberia

Fri, Feb 20 - Fri, Feb 27

1:30 pm - 8:50 am

DCA

LCY

14h 20m2 stops

7:50 am - 6:57 pm

LCY

DCA

16h 07m2 stops

$984Iberia

Fri, Feb 20 - Fri, Mar 6

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

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

United Airlines

Jan 28

DCA8:00 pmWashington, D.C. Reagan-National

30h 55m

1 stop

LHR7:55 amLondon Heathrow

Feb 1

LHR12:00 pmLondon Heathrow

29h 19m

1 stop

DCA12:19 pmWashington, D.C. Reagan-National

$629

Find similar

United Airlines

Feb 13

DCA7:30 amWashington, D.C. Reagan-National

22h 45m

1 stop

LHR11:15 amLondon Heathrow

Feb 21

LHR3:00 pmLondon Heathrow

24h 23m

1 stop

DCA10:23 amWashington, D.C. Reagan-National

$632

Find similar

United Airlines

Feb 13

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

15h 25m

1 stop

LHR9:20 amLondon Heathrow

Feb 20

LHR3:00 pmLondon Heathrow

11h 58m

1 stop

DCA9:58 pmWashington, D.C. Reagan-National

$645

Find similar

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

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

Finnair

Jan 20

DCA5:45 pmWashington, D.C. Reagan-National

10h 55m

1 stop

LHR9:40 amLondon Heathrow

Jan 27

LHR3:35 pmLondon Heathrow

11h 28m

1 stop

DCA10:03 pmWashington, D.C. Reagan-National

$636

Find similar

Finnair

Jan 18

DCA5:45 pmWashington, D.C. Reagan-National

10h 55m

1 stop

LHR9:40 amLondon Heathrow

Jan 25

LHR3:35 pmLondon Heathrow

11h 28m

1 stop

DCA10:03 pmWashington, D.C. Reagan-National

$637

Find similar

Finnair

Feb 18

DCA5:32 pmWashington, D.C. Reagan-National

11h 08m

1 stop

LHR9:40 amLondon Heathrow

Feb 24

LHR3:35 pmLondon Heathrow

11h 30m

1 stop

DCA10:05 pmWashington, D.C. Reagan-National

$638

Find similar

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

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 2/4

6:00 am-6:00 am

1 stop19h 00m

London Gatwick

Wed 2/11

1:00 pm-10:47 pm

1 stop14h 47m

$584

Washington, D.C.London

DCA - LTN

DCALTN

Washington, D.C. Reagan-National

Mon 1/19

6:00 am-8:10 pm

3 stops33h 10m

London Luton

Mon 1/26

8:50 pm-3:33 pm

3 stops23h 43m

$585

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 2/5

6:00 am-9:40 pm

1 stop10h 40m

London Heathrow

Thu 2/12

9:20 am-4:04 pm

1 stop11h 44m

$604

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Wed 1/21

8:20 am-7:30 am

1 stop18h 10m

London Gatwick

Sat 2/21

11:20 am-9:00 pm

1 stop14h 40m

$614

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Fri 1/30

1:00 pm-6:55 am

1 stop12h 55m

London Heathrow

Fri 2/27

9:20 am-5:49 pm

1 stop13h 29m

$614

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Fri 2/6

6:30 am-7:30 am

1 stop20h 00m

London Gatwick

Wed 2/18

11:20 am-11:36 pm

1 stop17h 16m

$616

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Tue 2/3

6:30 am-7:30 am

1 stop20h 00m

London Gatwick

Wed 2/25

11:20 am-11:59 pm

2 stops17h 39m

$620

Washington, D.C.London

DCA - LGW

DCALGW

Washington, D.C. Reagan-National

Mon 1/26

8:20 am-7:30 am

1 stop18h 10m

London Gatwick

Tue 5/12

10:45 am-9:30 pm

1 stop15h 45m

$630

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Fri 2/20

1:30 pm-8:50 am

2 stops14h 20m

London City

Fri 2/27

7:50 am-6:57 pm

2 stops16h 07m

$948

Washington, D.C.London

DCA - LCY

DCALCY

Washington, D.C. Reagan-National

Fri 2/20

1:30 pm-8:50 am

2 stops14h 20m

London City

Fri 3/6

7:50 am-6:57 pm

2 stops16h 07m

$984

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 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 February is another great option to travel to London, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $642.

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 $757. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $891. 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 $809 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $811. 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 $763 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 $625 on momondo.

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

You could potentially save up to 4% 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 15m
Direct flights	None

The fastest flight from Washington, D.C. Reagan-National Airport to London takes 9h 15m

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 15m.
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 December 2025, there are 8 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 29% of the total bookings. Other popular airlines include American Airlines with 24%, JetBlue with 24%, and United Airlines with 14%.

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 $31	Free Cancellation	Rating 7.2 2,898 reviews	Search JetBlue flights
Virgin Atlantic	PriceFrom $497	Free Cancellation	Rating 7.5 677 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
British Airways	PriceFrom $529	Free Cancellation	Rating 6.7 7,606 reviews	Search British Airways flights
Delta	PriceFrom $558	Free Cancellation	Rating 7.9 8,013 reviews	Search Delta flights
Iberia	PriceFrom $562	Free Cancellation	Rating 7.0 3,056 reviews	Search Iberia flights
United Airlines	PriceFrom $598	Free Cancellation	Rating 7.4 9,106 reviews	Search United Airlines flights
Air Canada	PriceFrom $632	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Wembley

Watford

Ilford

Cobham

Folkestone

Romford

Richmond

Uxbridge

Stansted

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

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Find better results for your trip to the United Kingdom

Cheap flights from Washington, D.C. Reagan-National Airport to London from $379

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

Cheap round-trip flights

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

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

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

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

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.

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 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?

You could potentially save up to 4% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to London flight.

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

Air Canada, Scandinavian Airlines, and United Airlines are the most popular carriers operating 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?

New York (JFK) was the most common stop: 42% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Montreal (YUL) offer the lowest average round-trip price of $715.

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.

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.

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

How far is Washington, D.C. Reagan-National to London by plane?

When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to London?

How many operators does momondo search 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?

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

What is the most popular airline from Washington, D.C. Reagan-National Airport to London?

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?

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

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

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

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

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