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

JetBlue, United Airlines, and British Airways are the most popular carriers operating from Washington, D.C. to London Heathrow

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

Flights via New York (JFK) offer the lowest average round-trip price of $570.

How long does it take to fly to London Heathrow Airport?

On average, it takes 7h 10m to fly from Washington, D.C. to London Heathrow Airport if you fly out of Baltimore (the most popular airport in Washington, D.C.) and into London Heathrow Airport (the most popular airport in London Heathrow Airport). If you’re flying out of Washington, D.C. and into London Heathrow Airport, then the flight time is around 8h 05m.

What is the most punctual flight time for Washington, D.C. to London flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

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

Reykjavik (KEF) was the most common stop: 35% of momondo users choosing 1-stop flights on this route connected there.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

How often are flights from Washington, D.C. to London delayed?

Historically, on average around 17% of flights between Washington, D.C. and London have experienced a delay on any given week. The average delay length over the past 12 months has been 170 minutes.

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

As of September 2026, there are 227 flights per week flying from Washington, D.C. to London Heathrow Airport. The most common day of the week flights depart is Fri, with 17% of flights taking off on this day.

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

New York (JFK) has the shortest average layover time for this route: 1h 18m.

Which airline has the best punctuality record on Washington, D.C. to London flights?

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

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

Flights connecting via New York (JFK) have the shortest average one-way travel time: 9h 52m.

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

32 flights are operational daily from Washington, D.C. to London Heathrow Airport as of September 2026. The most popular departure time for this route is 10:00PM, with 84% of flights per day taking off in the evening.

What airlines fly to London Heathrow Airport?

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to London Heathrow Airport from Washington, D.C. according to our data. British Airways is the first choice among our users, with 51% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 18 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

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

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

As of September 2026, there are 18 operators available to choose from for flights from Washington, D.C. to London Heathrow Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. 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.

$290 Cheap Flights from Washington, D.C. to London Heathrow Airport in 2026/27

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:40 pm - 7:30 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

18h 50m1 stop Reykjavik Keflavik Intl

12:15 pm - 6:30 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

11h 15m1 stop Reykjavik Keflavik Intl

$615Icelandair

Fri, Jan 15 - Wed, Jan 20

8:30 pm - 7:55 pmBWI Baltimore/Washington-LHR London Heathrow

18h 25m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

6:40 am - 7:25 pmLHR London Heathrow-BWI Baltimore/Washington

17h 45m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

$641Multiple Airlines

Tue, Oct 13 - Tue, Oct 20

8:30 pm - 7:55 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

18h 25m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

6:40 am - 7:20 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

17h 40m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

$641Multiple Airlines

Tue, Oct 13 - Tue, Oct 20

9:05 pm - 12:40 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

10h 35m1 stop Dublin

12:10 pm - 8:20 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 10m1 stop Dublin

$673Aer Lingus

Tue, Oct 20 - Tue, Oct 27

8:55 pm - 1:55 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

12h 00m1 stop Dublin

12:00 pm - 7:25 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 25m1 stop Dublin

$682Aer Lingus

Mon, Sep 28 - Fri, Oct 2

8:20 pm - 9:45 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

20h 25m1 stop Zurich

6:00 am - 5:00 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

16h 00m1 stop Zurich

$683SWISS

Wed, Oct 21 - Wed, Nov 4

9:10 pm - 4:20 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

15h 10m1 stop Zurich

6:00 am - 5:00 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

16h 00m1 stop Zurich

$683SWISS

Mon, Oct 26 - Tue, Nov 3

6:05 pm - 6:15 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mnonstop

7:35 am - 4:20 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

13h 45m1 stop Madrid Barajas

$686British Airways

Wed, Dec 9 - Wed, Dec 16

8:30 pm - 8:20 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

18h 50m1 stop Reykjavik Keflavik Intl

9:25 pm - 7:20 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

26h 55m1 stop Reykjavik Keflavik Intl

$690Icelandair

Mon, Oct 5 - Wed, Oct 14

8:50 pm - 1:25 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

11h 35m1 stop Dublin

12:10 pm - 7:20 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 10m1 stop Dublin

$693British Airways

Sun, Nov 8 - Wed, Nov 11

Cheap last minute flights

Enter your travel dates to find the best prices.

6:19 pm - 10:50 amDCA Washington, D.C. Reagan-National-LHR London Heathrow

11h 31m1 stop Chicago O'Hare Intl

2:10 pm - 11:10 pmLHR London Heathrow-DCA Washington, D.C. Reagan-National

14h 00m1 stop New York John F Kennedy Intl

$683Finnair

Sun, Sep 20 - Tue, Sep 29

8:20 pm - 9:45 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

20h 25m1 stop Zurich

8:40 am - 4:45 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

13h 05m1 stop Zurich

$683SWISS

Mon, Sep 21 - Wed, Oct 7

8:20 pm - 7:20 pmIAD Washington, D.C. Dulles Intl-LHR London Heathrow

18h 00m1 stop Zurich

6:00 am - 4:45 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

15h 45m1 stop Zurich

$683SWISS

Mon, Sep 21 - Wed, Oct 7

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

9:55 am - 3:35 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

10h 40m1 stop Amsterdam Schiphol

$686Virgin Atlantic

Sun, Sep 20 - Tue, Sep 29

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

3:50 pm - 7:15 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 25mnonstop

$686Air France

Sun, Sep 20 - Tue, Sep 29

5:15 pm - 9:05 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

10h 50m1 stop Dublin

12:00 pm - 7:35 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 35m1 stop Dublin

$688Aer Lingus

Sun, Sep 20 - Tue, Sep 29

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

3:50 pm - 7:15 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 25mnonstop

$692Virgin Atlantic

Sun, Sep 20 - Tue, Sep 29

6:19 pm - 12:15 pmDCA Washington, D.C. Reagan-National-LHR London Heathrow

12h 56m1 stop Chicago O'Hare Intl

2:10 pm - 11:10 pmLHR London Heathrow-DCA Washington, D.C. Reagan-National

14h 00m1 stop New York John F Kennedy Intl

$694Finnair

Sun, Sep 20 - Tue, Sep 29

5:15 pm - 9:05 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

10h 50m1 stop Dublin

9:50 am - 3:45 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

10h 55m1 stop Dublin

$695Aer Lingus

Sun, Sep 20 - Tue, Sep 29

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

8:55 am - 4:05 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 10m1 stop Paris Charles de Gaulle

$713Air France

Sun, Sep 20 - Tue, Sep 29

Cheap direct flights

Enter your travel dates to find the best prices.

6:05 pm - 6:15 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mnonstop

4:25 pm - 7:55 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$696Iberia

Wed, Jan 6 - Wed, Jan 13

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

3:50 pm - 7:15 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 25mnonstop

$704KLM

Mon, Oct 5 - Thu, Oct 15

10:25 pm - 10:50 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 25mnonstop

5:05 pm - 8:20 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 15mnonstop

$704British Airways

Tue, Oct 6 - Thu, Oct 15

9:45 pm - 10:00 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 15mnonstop

4:25 pm - 7:55 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$709Finnair

Tue, Dec 1 - Tue, Dec 8

6:05 pm - 6:15 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mnonstop

4:25 pm - 7:55 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$709Finnair

Wed, Dec 9 - Wed, Dec 16

7:05 pm - 6:15 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mnonstop

4:25 pm - 7:55 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$713British Airways

Tue, Oct 27 - Tue, Nov 3

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

3:50 pm - 7:15 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 25mnonstop

$714Virgin Atlantic

Sun, Oct 11 - Tue, Oct 20

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

3:50 pm - 7:15 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 25mnonstop

$715Virgin Atlantic

Tue, Oct 13 - Tue, Oct 20

9:45 pm - 10:00 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 15mnonstop

4:25 pm - 7:55 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 30mnonstop

$716Iberia

Mon, Nov 16 - Wed, Dec 2

10:05 pm - 10:40 amIAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mnonstop

1:20 pm - 6:00 pmLHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 40mnonstop

$731KLM

Wed, Oct 21 - Tue, Oct 27

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Icelandair flights from Washington, D.C. to London Heathrow Airport

Our best Icelandair deals on Washington, D.C. to London Heathrow Airport flight tickets

Icelandair

Jan 15

IAD7:40 pmWashington, D.C. Dulles Intl

18h 50m

1 stop

LHR7:30 pmLondon Heathrow

Jan 20

LHR12:15 pmLondon Heathrow

11h 15m

1 stop

IAD6:30 pmWashington, D.C. Dulles Intl

$615

Icelandair

Oct 5

IAD8:30 pmWashington, D.C. Dulles Intl

18h 50m

1 stop

LHR8:20 pmLondon Heathrow

Oct 14

LHR9:25 pmLondon Heathrow

26h 55m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

$690

Icelandair

Oct 24

IAD8:40 pmWashington, D.C. Dulles Intl

10h 10m

1 stop

LHR11:50 amLondon Heathrow

Oct 31

LHR12:15 pmLondon Heathrow

11h 15m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

$691

Aer Lingus flights from Washington, D.C. to London Heathrow Airport

Our best Aer Lingus deals on Washington, D.C. to London Heathrow Airport flight tickets

Aer Lingus

Oct 20

IAD9:05 pmWashington, D.C. Dulles Intl

10h 35m

1 stop

LHR12:40 pmLondon Heathrow

Oct 27

LHR12:10 pmLondon Heathrow

12h 10m

1 stop

IAD8:20 pmWashington, D.C. Dulles Intl

$673

Aer Lingus

Sep 28

IAD8:55 pmWashington, D.C. Dulles Intl

12h 00m

1 stop

LHR1:55 pmLondon Heathrow

Oct 2

LHR12:00 pmLondon Heathrow

12h 25m

1 stop

IAD7:25 pmWashington, D.C. Dulles Intl

$682

Aer Lingus

Sep 20

IAD5:15 pmWashington, D.C. Dulles Intl

10h 50m

1 stop

LHR9:05 amLondon Heathrow

Sep 29

LHR12:00 pmLondon Heathrow

12h 35m

1 stop

IAD7:35 pmWashington, D.C. Dulles Intl

$688

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Fri 1/15

7:40 pm-7:30 pm

1 stop18h 50m

London Heathrow

Wed 1/20

12:15 pm-6:30 pm

1 stop11h 15m

$615

BaltimoreLondon

BWI Baltimore/Washington - LHR London Heathrow

BWILHR

Baltimore/Washington

Tue 10/13

8:30 pm-7:55 pm

2 stops18h 25m

London Heathrow

Tue 10/20

6:40 am-7:25 pm

2 stops17h 45m

$641

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Tue 10/13

8:30 pm-7:55 pm

2 stops18h 25m

London Heathrow

Tue 10/20

6:40 am-7:20 pm

2 stops17h 40m

$641

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Tue 10/20

9:05 pm-12:40 pm

1 stop10h 35m

London Heathrow

Tue 10/27

12:10 pm-8:20 pm

1 stop12h 10m

$673

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Mon 9/28

8:55 pm-1:55 pm

1 stop12h 00m

London Heathrow

Fri 10/2

12:00 pm-7:25 pm

1 stop12h 25m

$682

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Wed 10/21

8:20 pm-9:45 pm

1 stop20h 25m

London Heathrow

Wed 11/4

6:00 am-5:00 pm

1 stop16h 00m

$683

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Mon 10/26

9:10 pm-4:20 pm

1 stop15h 10m

London Heathrow

Tue 11/3

6:00 am-5:00 pm

1 stop16h 00m

$683

Quickest round-trip

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Wed 12/9

6:05 pm-6:15 am

Nonstop7h 10m

London Heathrow

Wed 12/16

7:35 am-4:20 pm

1 stop13h 45m

$686

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Mon 10/5

8:30 pm-8:20 pm

1 stop18h 50m

London Heathrow

Wed 10/14

9:25 pm-7:20 pm

1 stop26h 55m

$690

Washington, D.C.London

IAD Washington, D.C. Dulles Intl - LHR London Heathrow

IADLHR

Washington, D.C. Dulles Intl

Sun 11/8

8:50 pm-1:25 pm

1 stop11h 35m

London Heathrow

Wed 11/11

12:10 pm-7:20 pm

1 stop12h 10m

$693

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. 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

Delays

Layovers

Other information

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

Prices are currently low for flights on this route.

Typical prices usually range from $763 to $1,149.
The lowest price recently found on this route was $615.

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

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Washington, D.C., with most prices found around $688. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from Washington, D.C. to London Heathrow Airport during January average around $742.

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 $914. The most expensive day to fly to London Heathrow Airport is Friday, with ticket prices averaging around $1,014.

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. to London Heathrow Airport in the afternoon for as low as $946. 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 $982.

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

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

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

You are more likely to see cheaper flights to London Heathrow Airport from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $904 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. for as low as $856 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 12% on your flight if you consider stops on a Washington, D.C. to London Heathrow Airport flight.

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

As of September 2026, prices for Washington, D.C. to London Heathrow Airport flights are approximately 19% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to London Heathrow Airport (WAS to LHR) flight deals and tips

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

Best Price Found	$290
Fastest flight time	7h 10m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sat

The best one-way flight to London Heathrow Airport from Washington, D.C. in the past 72 hours is $290. The best round-trip flight deal from Washington, D.C. to London Heathrow Airport found on momondo in the last 72 hours is $615.

The fastest flight from Washington, D.C. to London Heathrow Airport takes 7h 10m

Direct flights go from Washington, D.C. to London Heathrow Airport on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. The only airline offering direct flights is British Airways.

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

How far is Washington, D.C. to London Heathrow by plane?
Washington, D.C. and London Heathrow are 3649.4 mi apart from one another. 7h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to London Heathrow Airport?
Prices for flights from Washington, D.C. to London Heathrow Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to London Heathrow Airport?
As of September 2026, there are 18 operators available to choose from for flights from Washington, D.C. to London Heathrow Airport.
How old do you have to be to fly from Washington, D.C. to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. 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 plane model from Washington, D.C. to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to London Heathrow Airport is Boeing 777, representing 54.85% of all bookings. The subsequent popular models are Boeing 777-300ER at 12.08%, Boeing 787-10 Dreamliner at 5.90%, and Airbus A330-900neo at 5.59%.
What is the most popular airline from Washington, D.C. to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to London Heathrow Airport is British Airways, representing 35% of all bookings. The subsequent popular airlines are United Airlines at 18%, American Airlines at 11%, and Virgin Atlantic at 8%.

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

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

Airline	Rating	Free Cancellation	Price
TAP AIR PORTUGAL	PriceFrom $420	Free Cancellation	Rating 7.2 2,387 reviews	Search TAP AIR PORTUGAL flights
Virgin Atlantic	PriceFrom $449	Free Cancellation	Rating 7.4 694 reviews	Search Virgin Atlantic flights
Icelandair	PriceFrom $481	Free Cancellation	Rating 6.9 743 reviews	Search Icelandair flights
Iberia	PriceFrom $484	Free Cancellation	Rating 7.0 3,248 reviews	Search Iberia flights
Delta	PriceFrom $508	Free Cancellation	Rating 7.8 8,568 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $571	Free Cancellation	Rating 7.4 1,984 reviews	Search Scandinavian Airlines flights
Air Canada	PriceFrom $577	Free Cancellation	Rating 7.1 11,630 reviews	Search Air Canada flights
Air France	PriceFrom $581	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
British Airways	PriceFrom $591	Free Cancellation	Rating 6.7 8,220 reviews	Search British Airways flights
SWISS	PriceFrom $593	Free Cancellation	Rating 7.5 2,075 reviews	Search SWISS flights

Delta Flights From Washington, D.C. to London Heathrow Airport
Delta flight deals from Washington, D.C. to London Heathrow Airport start from $508 round-trip. Over the 8 Delta flights for this route in a normal week, average airfare is usually $992 round-trip - but some users have found much cheaper deals with momondo.
KLM Flights From Washington, D.C. to London Heathrow Airport
Across 1,580 KLM reviews on momondo, the average score is 7.8/10. KLM flies from Washington, D.C. to London Heathrow Airport about 8 times each week, with ticket deals ranging from $618 to $1,124. Price data is based on momondo searches in the last 72 hours.

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

Finding the right flight to London from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Washington, D.C. to London flights to just show those with flexible booking policies.

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?

If you are not ready to book a flight from Washington, D.C. to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Flights to London Gatwick Airportfrom $380

Flights to London Stansted Airportfrom $444

Flights to London City Airportfrom $580

Flights to London Luton Airportfrom $413

Flights to Glasgow Intl Airportfrom $483

Flights to Belfast Intl Airportfrom $669

Flights to London Southend Airportfrom $566

Flights to Belfast City Airportfrom $669

Cheap flights from Washington, D.C. to London from $290

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to London departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Icelandair flights from Washington, D.C. to London Heathrow Airport

Our best Icelandair deals on Washington, D.C. to London Heathrow Airport flight tickets

Aer Lingus flights from Washington, D.C. to London Heathrow Airport

Our best Aer Lingus deals on Washington, D.C. to London Heathrow Airport flight tickets

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

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

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Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport 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 London

Popular cities in the United Kingdom

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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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