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

JetBlue is the most popular carrier operating from Washington, D.C. Reagan-National to London Heathrow

What airlines fly to London Heathrow Airport?

JetBlue, British Airways and American Airlines are the top three most popular airlines that fly to London Heathrow Airport from Washington, D.C. Reagan-National Airport according to our data. JetBlue is the first choice among our users, with 47% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 7 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

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

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

The required travel and health documents for your London Heathrow Airport 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 Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$286 Cheap Flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $736 to $1,077. The lowest price recently found on this route was $728.

Discover deals from 900+ travel sites with momondo.

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.

4:00 pm - 7:10 am

DCA

LHR

10h 10m

1 stop

6:50 am - 3:24 pm

LHR

DCA

13h 34m

2 stops

$728Multiple Airlines

Sun, Nov 1 - Tue, Nov 3

6:55 pm - 8:30 am

DCA

LHR

33h 35m

1 stop

6:50 am - 9:59 pm

LHR

DCA

20h 09m

2 stops

$733Air Canada

Sat, Oct 31 - Tue, Nov 3

4:00 pm - 11:20 am

DCA

LHR

14h 20m

2 stops

6:50 am - 3:24 pm

LHR

DCA

13h 34m

2 stops

$736Air Canada

Sun, Nov 1 - Tue, Nov 3

1:25 pm - 6:30 am

DCA

LHR

12h 05m

1 stop

8:15 am - 10:59 pm

LHR

DCA

19h 44m

1 stop

$774JetBlue

Mon, Aug 24 - Tue, Sep 8

8:49 am - 6:30 am

DCA

LHR

16h 41m

1 stop

8:15 am - 10:59 pm

LHR

DCA

19h 44m

1 stop

$782JetBlue

Wed, Sep 2 - Sun, Sep 6

2:30 pm - 6:30 am

DCA

LHR

11h 00m

1 stop

4:35 pm - 11:10 pm

LHR

DCA

11h 35m

1 stop

$790Multiple Airlines

Mon, Sep 21 - Tue, Sep 29

6:10 am - 8:45 pm

DCA

LHR

9h 35m

1 stop

8:40 am - 6:01 pm

LHR

DCA

14h 21m

1 stop

$792JetBlue

Thu, Aug 6 - Fri, Sep 4

6:10 am - 8:45 pm

DCA

LHR

9h 35m

1 stop

8:40 am - 6:05 pm

LHR

DCA

14h 25m

1 stop

$793JetBlue

Wed, Aug 19 - Thu, Sep 3

4:00 pm - 7:10 am

DCA

LHR

10h 10m

1 stop

9:20 am - 4:20 pm

LHR

DCA

12h 00m

1 stop

$794Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

4:00 pm - 7:10 am

DCA

LHR

10h 10m

1 stop

7:25 am - 10:48 pm

LHR

DCA

20h 23m

1 stop

$795Multiple Airlines

Wed, Nov 4 - Mon, Nov 9

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

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

JetBlue

Aug 24

DCA1:25 pmWashington, D.C. Reagan-National

12h 05m

1 stop

LHR6:30 amLondon Heathrow

Sep 8

LHR8:15 amLondon Heathrow

19h 44m

1 stop

DCA10:59 pmWashington, D.C. Reagan-National

$774

JetBlue

Sep 2

DCA8:49 amWashington, D.C. Reagan-National

16h 41m

1 stop

LHR6:30 amLondon Heathrow

Sep 6

LHR8:15 amLondon Heathrow

19h 44m

1 stop

DCA10:59 pmWashington, D.C. Reagan-National

$782

JetBlue

Aug 6

DCA6:10 amWashington, D.C. Reagan-National

9h 35m

1 stop

LHR8:45 pmLondon Heathrow

Sep 4

LHR8:40 amLondon Heathrow

14h 21m

1 stop

DCA6:01 pmWashington, D.C. Reagan-National

$792

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

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

Air Canada

Oct 31

DCA6:55 pmWashington, D.C. Reagan-National

33h 35m

1 stop

LHR8:30 amLondon Heathrow

Nov 3

LHR6:50 amLondon Heathrow

20h 09m

2 stops

DCA9:59 pmWashington, D.C. Reagan-National

$733

Air Canada

Nov 1

DCA4:00 pmWashington, D.C. Reagan-National

14h 20m

2 stops

LHR11:20 amLondon Heathrow

Nov 3

LHR6:50 amLondon Heathrow

13h 34m

2 stops

DCA3:24 pmWashington, D.C. Reagan-National

$736

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport 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 11/1

4:00 pm-7:10 am

1 stop10h 10m

London Heathrow

Tue 11/3

6:50 am-3:24 pm

2 stops13h 34m

$728

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Sat 10/31

6:55 pm-8:30 am

1 stop33h 35m

London Heathrow

Tue 11/3

6:50 am-9:59 pm

2 stops20h 09m

$733

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Sun 11/1

4:00 pm-11:20 am

2 stops14h 20m

London Heathrow

Tue 11/3

6:50 am-3:24 pm

2 stops13h 34m

$736

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 8/24

1:25 pm-6:30 am

1 stop12h 05m

London Heathrow

Tue 9/8

8:15 am-10:59 pm

1 stop19h 44m

$774

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 9/2

8:49 am-6:30 am

1 stop16h 41m

London Heathrow

Sun 9/6

8:15 am-10:59 pm

1 stop19h 44m

$782

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 9/21

2:30 pm-6:30 am

1 stop11h 00m

London Heathrow

Tue 9/29

4:35 pm-11:10 pm

1 stop11h 35m

$790

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 8/6

6:10 am-8:45 pm

1 stop9h 35m

London Heathrow

Fri 9/4

8:40 am-6:01 pm

1 stop14h 21m

$792

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 8/19

6:10 am-8:45 pm

1 stop9h 35m

London Heathrow

Thu 9/3

8:40 am-6:05 pm

1 stop14h 25m

$793

Quickest round-trip

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 11/3

4:00 pm-7:10 am

1 stop10h 10m

London Heathrow

Tue 11/10

9:20 am-4:20 pm

1 stop12h 00m

$794

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 11/4

4:00 pm-7:10 am

1 stop10h 10m

London Heathrow

Mon 11/9

7:25 am-10:48 pm

1 stop20h 23m

$795

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 Heathrow Airport

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

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

What is the cheapest month to fly to London Heathrow Airport?

The month of November is, on average, the cheapest month to fly to London Heathrow Airport from Washington, D.C. Reagan-National Airport, with most prices found around $644. If you’re not able to fly to London Heathrow Airport in November, then October is your next best option. Flight prices from Washington, D.C. Reagan-National Airport to London Heathrow Airport during October average around $699.

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $823. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $947.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to London Heathrow Airport in the afternoon for as low as $852. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $919.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport 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 Heathrow Airport for around $954 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Washington, D.C. Reagan-National Airport for as low as $695 on momondo.

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

You could potentially save up to 7% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to London Heathrow Airport flight.

How have Washington, D.C. Reagan-National Airport to London Heathrow Airport flight prices changed over time?

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to London Heathrow Airport 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 Heathrow Airport (DCA to LHR) 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 Heathrow Airport

Fastest flight time	9h 15m
Direct flights	None

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

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

Search flight deals

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport

How far is Washington, D.C. Reagan-National to London Heathrow by plane?
The straight-line distance from Washington, D.C. Reagan-National to London Heathrow is 3651.9 mi. A reasonable flight in good conditions will take 9h 15m.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport?
As of July 2026, there are 7 operators available to choose from for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to London Heathrow Airport?
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 Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The required travel and health documents for your London Heathrow Airport 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 Heathrow Airport. 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 Heathrow Airport?
Based on momondo bookings for flights between Washington, D.C. Reagan-National Airport and London Heathrow Airport, the leading airline is JetBlue, making up 40% of the total bookings. Other popular airlines include British Airways with 19%, American Airlines with 13%, and United Airlines with 12%.

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

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

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $497	Free Cancellation	Rating 7.5 693 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.1 11,808 reviews	Search American Airlines flights
British Airways	PriceFrom $529	Free Cancellation	Rating 6.7 8,107 reviews	Search British Airways flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 11,325 reviews	Search Air Canada flights
United Airlines	PriceFrom $598	Free Cancellation	Rating 7.4 9,977 reviews	Search United Airlines flights
JetBlue	PriceFrom $639	Free Cancellation	Rating 7.1 3,016 reviews	Search JetBlue flights
Delta	PriceFrom $668	Free Cancellation	Rating 7.8 8,457 reviews	Search Delta flights

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Wembley

Croydon

Stansted

Stratford-upon-Avon

Harrow

Slough

Watford

Brentwood

Ilford

Cobham

Folkestone

Guildford

Romford

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

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

momondo provides multiple filters to help you find the best flight to London from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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 can track prices for Washington, D.C. to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Washington, D.C. Reagan-National Airport to London from $286

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

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

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

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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport 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 Heathrow Airport

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

What is the cheapest month to fly to London Heathrow Airport?

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

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

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

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

How have Washington, D.C. Reagan-National Airport to London Heathrow Airport flight prices changed over time?

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

What airlines fly to London Heathrow Airport?

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

Cheap Washington, D.C. Reagan-National Airport to London Heathrow Airport (DCA to LHR) 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 Heathrow Airport

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport

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

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

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport trip

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Get notified when prices go down

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

Find better results for your trip to London

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According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year

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

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