What are the cheapest airlines flying from Washington, D.C. to London Heathrow Airport round-trip?

Flying on Scandinavian Airlines is currently your cheapest option to London Heathrow Airport, with prices starting at $423. Additional round-trip tickets that might be worth considering are offered by Icelandair and United Airlines, with the lowest prices starting at $535 and $544, respectively. Scandinavian Airlines is currently priced 43% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Washington, D.C. to London Heathrow Airport one-way?

One-way options have recently been found by users for as low as $262 on Icelandair. Other airlines that offer cheap prices include ITA Airways from $262 and TAP AIR PORTUGAL from $274 one-way.

What are the most popular airlines that fly from Washington, D.C. to London Heathrow Airport?

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from Washington, D.C. to London Heathrow Airport.

What are the most popular routes from Washington, D.C. to London Heathrow Airport?

The most popular flight routes from Washington, D.C. to London Heathrow Airport are Washington, D.C. Dulles Intl - London Heathrow, Baltimore/Washington - London Heathrow and Washington, D.C. Reagan-National - London Heathrow.

What are the cheapest flights from Washington, D.C. to London Heathrow Airport?

Looking at all options, your cheapest flight can be booked for $257. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for $423 on average our data indicates $4,074 when flying from Washington, D.C. to London Heathrow Airport.

What are the most reliable airlines from Washington, D.C. to London Heathrow Airport?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. to London Heathrow Airport on time: KLM (89%), Air France (87%), Delta (87%).

Can I find flights from Washington, D.C. to London Heathrow Airport for under $500 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. to London Heathrow Airport for under $500. The cheapest flight booked recently is on Scandinavian Airlines for just $423, but on average you can expect to pay $528.

Are there nonstop flights from Washington, D.C. to London Heathrow Airport for under $700 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. to London Heathrow Airport under $700. A good price for a nonstop flight from Washington, D.C. to London Heathrow Airport is less than $646.

Are there last-minute flights available from Washington, D.C. to London Heathrow Airport for under $900?

There are currently 20+ open flights from Washington, D.C. to London Heathrow Airport within the next 7 days for less than $900.

Which airlines flying from Washington, D.C. to London Heathrow have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like British Airways, United Airlines, and American Airlines flying from Washington, D.C. to London Heathrow have implemented new flexible cancellation policies.

What is the cheapest month to fly from Washington, D.C. to London Heathrow Airport?

Our data shows that February tends to be the cheapest month to fly to London Heathrow Airport from Washington, D.C.. Users have commonly found prices around $720 for the month, but tickets can be as low as $489. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Washington, D.C. to London Heathrow Airport (WAS - LHR)?

When flying from Washington, D.C. to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What does IAD to LHR mean?

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Washington, D.C. Dulles Intl Airport to London Heathrow Airport flight would often be abbreviated as a IAD to LHR flight.

Cheap Flights from Washington, D.C., DC to London Heathrow Airport (LHR) from $262 - WAS to LHR Tickets & Airfare Deals at Cheapflights.com

How to find the cheapest flight from Washington, D.C. (WAS) to Heathrow (LHR)

Popular in	July
Cheapest in	February
Round-trip from	$633
One-way from	$262

High demand for flights, 18% potential price rise

Search Deals

Best time to find cheap flights, 18% potential price drop

Search Deals

From Washington, D.C. (WAS) to London Heathrow

Search Deals

One-way flight from Washington, D.C. (WAS) to London Heathrow

Search Deals

WAS - LON Price	$633 - $1,115
LON Temperature	39.2 - 62.6 °F
LON Rainfall	1.6 - 2.8 inches

WAS - LON

Price

$633 - $1,115

LON

Temperature

39.2 - 62.6 °F

LON

Rainfall

1.6 - 2.8 inches

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 25% on flights from Washington, D.C. to London Heathrow Airport compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $839. For sooner than that we have options available in the next 3 days from $959.

Cheap flights from Washington, D.C. to Heathrow in June, July 2023

These are some of the best deals we've found on flights to London in 2023 at this time. Check back soon for alternative fares.

Jun 4 - Jun 11

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

19h 10m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 50m

$733

Scandinavian Airlines

Deal found 6/1

Jun 28 - Sep 13

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

22h 55m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

14h 05m

$772

Delta

Deal found 5/31

Jun 1 - Jun 12

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 30m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

23h 50m

$773

Scandinavian Airlines

Deal found 5/31

Jun 1 - Jun 8

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 30m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 35m

$783

Scandinavian Airlines

Deal found 5/31

Jun 28 - Dec 12

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

22h 55m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m

$787

Delta

Deal found 5/31

Jun 28 - Dec 12

DCA

Washington, D.C. Reagan-National

LHR

London Heathrow

1 stop

10h 55m

LHR

London Heathrow

DCA

Washington, D.C. Reagan-National

2 stops

16h 40m

$793

British Airways

Deal found 5/31

Jun 28 - Sep 13

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

2 stops

26h 09m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

17h 43m

$793

British Airways

Deal found 5/31

Jun 28 - Sep 13

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

2 stops

26h 09m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 50m

$797

British Airways

Deal found 5/31

Jun 28 - Dec 12

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

2 stops

26h 09m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

27h 14m

$806

British Airways

Deal found 5/31

Washington, D.C. to Heathrow 2023 flight deals

These are some of the best deals we've found on flights to London in 2023 at this time. Check back soon for alternative fares.

Sep 25 - Oct 1

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

19h 10m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

25h 40m

$423

Scandinavian Airlines

Deal found 5/30

Oct 1 - Oct 31

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

17h 30m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

14h 05m

$433

Scandinavian Airlines

Deal found 5/31

Oct 28 - Oct 30

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

22h 00m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

25h 15m

$502

Scandinavian Airlines

Deal found 6/1

Oct 4 - Oct 6

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

21h 00m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

50h 50m

$514

Scandinavian Airlines

Deal found 6/1

Oct 13 - Oct 16

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

2 stops

38h 25m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

34h 25m

$533

Scandinavian Airlines

Deal found 5/31

Oct 28 - Oct 29

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 30m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

23h 40m

$534

Scandinavian Airlines

Deal found 6/1

Oct 4 - Oct 18

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

18h 45m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

27h 00m

$535

Icelandair

Deal found 5/31

Sep 15 - Sep 16

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

10h 00m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

31h 25m

$535

Multiple Airlines

Deal found 5/31

Oct 27 - Oct 28

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

15h 05m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

28h 15m

$536

Scandinavian Airlines

Deal found 6/1

Cheap Icelandair flights from Washington, D.C. to Heathrow

Find some of the cheapest Icelandair flights traveling from Washington, D.C. to London. Come back soon if you're not finding the exact deal you're looking for.

Oct 4 - Oct 18

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

18h 45m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

27h 00m

$535

Icelandair

Deal found 5/31

Nov 16 - Nov 29

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 50m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

26h 30m

$543

Icelandair

Deal found 5/31

Sep 13 - Sep 20

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 20m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

27h 00m

$547

Icelandair

Deal found 5/31

Oct 12 - Oct 25

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 45m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

26h 50m

$548

Icelandair

Deal found 6/1

Oct 31 - Nov 14

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

10h 10m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

26h 30m

$549

Icelandair

Deal found 6/1

Oct 2 - Oct 10

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

18h 45m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

27h 00m

$550

Icelandair

Deal found 5/31

Oct 4 - Oct 18

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

18h 45m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

27h 00m

$551

Icelandair

Deal found 5/31

Nov 8 - Nov 21

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 20m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

26h 50m

$552

Icelandair

Deal found 5/30

Oct 24 - Nov 5

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 20m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

26h 50m

$553

Icelandair

Deal found 5/31

One of the most popular airlines traveling from Washington, D.C. to London Heathrow Airport is Icelandair. Washington, D.C. to London Heathrow Airport flights are typically 70% cheaper than other airlines traveling the same route. Flights from Icelandair typically cost $766.15 RT. The cheapest Icelandair flight found for this route was $592. The most popular departure airport in Washington, D.C. when flying to London Heathrow Airport is Washington, D.C. Dulles Intl Airport. The most popular airport to fly into when visiting London Heathrow Airport is London Heathrow Airport. When flying from Washington, D.C. to London Heathrow Airport, Icelandair flights are 9% more popular than any other airline flying that same route.

Cheap United Airlines flights from Washington, D.C. to Heathrow

Take a gander at the lowest prices we've found on United Airlines flights from Washington, D.C. to London. Check back soon if you're not seeing flights that suit your needs.

Nov 10 - Nov 12

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

23h 58m

LHR

London Heathrow

BWI

Baltimore/Washington

2 stops

52h 09m

$544

United Airlines

Deal found 5/31

Nov 9 - Nov 13

DCA

Washington, D.C. Reagan-National

LHR

London Heathrow

1 stop

9h 50m

LHR

London Heathrow

DCA

Washington, D.C. Reagan-National

2 stops

16h 08m

$636

United Airlines

Deal found 5/30

Sep 11 - Sep 20

DCA

Washington, D.C. Reagan-National

LHR

London Heathrow

1 stop

19h 30m

LHR

London Heathrow

DCA

Washington, D.C. Reagan-National

2 stops

24h 54m

$637

United Airlines

Deal found 5/31

Aug 2 - Sep 19

DCA

Washington, D.C. Reagan-National

LHR

London Heathrow

1 stop

9h 15m

LHR

London Heathrow

DCA

Washington, D.C. Reagan-National

2 stops

19h 07m

$642

United Airlines

Deal found 5/31

Sep 13 - Sep 20

DCA

Washington, D.C. Reagan-National

LHR

London Heathrow

2 stops

16h 35m

LHR

London Heathrow

DCA

Washington, D.C. Reagan-National

1 stop

11h 06m

$649

United Airlines

Deal found 5/31

Jun 9 - Oct 28

DCA

Washington, D.C. Reagan-National

LHR

London Heathrow

2 stops

14h 35m

LHR

London Heathrow

DCA

Washington, D.C. Reagan-National

1 stop

11h 06m

$1,477

United Airlines

Deal found 5/31

If you’re traveling from Washington, D.C. to London Heathrow Airport, one of the more common airlines traveling that route is United Airlines. Flights from United Airlines traveling this route typically cost $817.07 RT. This price is typically 67% more expensive than other airlines that offer Washington, D.C. to London Heathrow Airport flights. When booking this route, the cheapest RT price found was $519. The most popular departure airport in Washington, D.C. when flying to London Heathrow Airport is Washington, D.C. Dulles Intl Airport. The most popular airport to fly into when visiting London Heathrow Airport is London Heathrow Airport. When flying from Washington, D.C. to London Heathrow Airport, United Airlines flights are 5% more popular than any other airline flying that same route.

Non-stop flights to Heathrow from Washington, D.C.

To help reduce your travel time, choose from one of these non-stop flights from Washington, D.C. to London. Search for alternative flights from Washington, D.C. to London by utilizing the search form above.

Aug 15 - Aug 29

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 15m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 00m

$614

Iberia

Deal found 6/1

Sep 13 - Sep 20

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 15m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 10m

$635

British Airways

Deal found 5/31

Aug 15 - Aug 29

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 15m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 00m

$636

British Airways

Deal found 5/31

Oct 4 - Oct 18

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 30m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 25m

$638

Virgin Atlantic

Deal found 5/31

Sep 11 - Sep 22

BWI

Baltimore/Washington

LHR

London Heathrow

Nonstop

7h 10m

LHR

London Heathrow

BWI

Baltimore/Washington

Nonstop

8h 05m

$641

Finnair

Deal found 5/31

Oct 4 - Oct 9

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 20m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 10m

$641

Finnair

Deal found 5/31

Sep 11 - Sep 18

BWI

Baltimore/Washington

LHR

London Heathrow

Nonstop

7h 10m

LHR

London Heathrow

BWI

Baltimore/Washington

Nonstop

8h 05m

$643

Finnair

Deal found 5/31

Sep 15 - Sep 23

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 15m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 10m

$643

Finnair

Deal found 5/30

Oct 2 - Oct 13

BWI

Baltimore/Washington

LHR

London Heathrow

Nonstop

7h 10m

LHR

London Heathrow

BWI

Baltimore/Washington

Nonstop

8h 05m

$646

Finnair

Deal found 5/31

Last minute flights from Washington, D.C. to Heathrow

Users seeking a last-minute flight from Washington, D.C. to London should consider booking one of these fares. It's wise to confirm all flight details are correct before booking.

Jun 7 - Jun 17

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

12h 35m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

25h 30m

$887

Aer Lingus

Deal found 6/1

Jun 7 - Jun 14

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

3 stops

22h 45m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

15h 00m

$902

Multiple Airlines

Deal found 5/31

Jun 7 - Jun 22

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

3 stops

22h 45m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

15h 00m

$910

Multiple Airlines

Deal found 5/31

Jun 9 - Jun 16

BWI

Baltimore/Washington

LHR

London Heathrow

2 stops

29h 00m

LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

15h 05m

$913

Multiple Airlines

Deal found 5/31

Jun 8 - Jun 13

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

3 stops

29h 00m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

16h 00m

$919

Multiple Airlines

Deal found 5/31

Jun 7 - Jun 11

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

3 stops

31h 15m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

16h 00m

$942

Multiple Airlines

Deal found 5/30

Jun 7 - Jun 22

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

10h 30m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

15h 00m

$948

Multiple Airlines

Deal found 5/31

Jun 7 - Jun 10

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

3 stops

22h 45m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

15h 00m

$957

Multiple Airlines

Deal found 5/31

Jun 8 - Jun 13

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 55m

LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

2 stops

16h 00m

$965

Multiple Airlines

Deal found 5/31

One-way flights to Heathrow from Washington, D.C.

Take a look at some of the one-way flights we've detected from Washington, D.C. to London. Users can also find round-trip Washington, D.C. to London flights by using the search form above.

Oct 9

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

18h 45m

$262

Icelandair

Deal found 5/31

Oct 25

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 30m

$262

ITA Airways

Deal found 5/31

Sep 25

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 20m

$268

Icelandair

Deal found 5/31

Sep 19

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

10h 20m

$268

Icelandair

Deal found 5/31

Oct 9

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

15h 45m

$274

TAP AIR PORTUGAL

Deal found 5/31

Oct 22

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

19h 50m

$275

TAP AIR PORTUGAL

Deal found 6/1

Nov 6

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

13h 55m

$276

TAP AIR PORTUGAL

Deal found 5/31

Nov 6

IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

19h 05m

$280

TAP AIR PORTUGAL

Deal found 6/1

Oct 25

BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 20m

$286

Icelandair

Deal found 5/31

Find flights from Washington, D.C. to Heathrow within your budget

Fly from

Fly to

Budget

$423 - $661

Route

Depart

Return

Price

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 9/25

1 stop19h 10m

London Heathrow

Sun 10/1

1 stop25h 40m

$423

Pick Dates

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 10/1

1 stop17h 30m

London Heathrow

Tue 10/31

1 stop14h 05m

$433

Pick Dates

Baltimore/WashingtonLondon Heathrow

BWI - LHR

BWILHR

Baltimore/Washington

Wed 10/4

1 stop18h 45m

London Heathrow

Wed 10/18

1 stop27h 00m

$535

Pick Dates

Washington, D.C. Dulles IntlLondon Heathrow

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 9/15

1 stop10h 00m

London Heathrow

Sat 9/16

1 stop31h 25m

$535

Pick Dates

Baltimore/WashingtonLondon Heathrow

BWI - LHR

BWILHR

Baltimore/Washington

Fri 11/10

1 stop23h 58m

London Heathrow

Sun 11/12

2 stops52h 09m

$544

Pick Dates

Washington, D.C. Reagan-NationalLondon Heathrow

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 9/13

1 stop9h 15m

London Heathrow

Wed 9/20

1 stop11h 06m

$608

Pick Dates

Washington, D.C. Reagan-NationalLondon Heathrow

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 9/28

1 stop9h 35m

London Heathrow

Mon 10/2

2 stops21h 04m

$628

Pick Dates

Washington, D.C. Reagan-NationalLondon Heathrow

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Tue 8/15

1 stop12h 00m

London Heathrow

Thu 8/31

2 stops18h 20m

$650

Pick Dates

Washington, D.C. Reagan-NationalLondon Heathrow

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 8/14

1 stop10h 38m

London Heathrow

Tue 8/22

1 stop11h 50m

$661

Pick Dates

Flights are sorted by cheapest first

Deals found on 5/30

Reviews of Airlines Servicing Heathrow

See what other customers who have flown with Icelandair, United Airlines and Air Canada from Washington, D.C. to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

Not sure why two of the movies available were Christmas themed in late May.

United Airlines

7.6

Good

1,531 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

Not sure why two of the movies available were Christmas themed in late May.

JetBlue

7.5

Good

608 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

Not sure why two of the movies available were Christmas themed in late May.

Finnair

7.5

Good

277 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

Not sure why two of the movies available were Christmas themed in late May.

American Airlines

7.3

Good

2,149 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

Not sure why two of the movies available were Christmas themed in late May.

Turkish Airlines

7.3

Good

1,415 reviews

United Airlines

7.6

Good

1,531 reviews

Check prices

Reviews

1 / 10

Not sure why two of the movies available were Christmas themed in late May.

Related info for your journey

Top 10 airlines flying from Washington, D.C. to Heathrow

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
PLAY	Cheapest$335	Average$477	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search PLAY flights
Icelandair	Cheapest$369	Average$679	FlexibilityNo cancel fee	On-time76%	COVID-19 safety	Search Icelandair flights
Scandinavian Airlines	Cheapest$436	Average$704	FlexibilityNo cancel fee	On-time77%	COVID-19 safety	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest$455	Average$609	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search TAP AIR PORTUGAL flights
Delta	Cheapest$519	Average$817	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Delta flights
Aer Lingus	Cheapest$520	Average$789	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Aer Lingus flights
Finnair	Cheapest$546	Average$713	FlexibilityNo cancel fee	On-time76%	COVID-19 safety	Search Finnair flights
Virgin Atlantic	Cheapest$547	Average$761	FlexibilityNo cancel fee	On-time72%	COVID-19 safety	Search Virgin Atlantic flights
Air France	Cheapest$550	Average$685	FlexibilityNo cancel fee	On-time77%	COVID-19 safety	Search Air France flights
British Airways	Cheapest$558	Average$840	FlexibilityNo cancel fee	On-time70%	COVID-19 safety	Search British Airways flights

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Hourly flight availability from Washington, D.C. to Heathrow

1%of flight departures	Early morningMidnight to 6 am
18%of flight departures	Morning6 am to noon
46%of flight departures	AfternoonNoon to 6 pm
35%of flight departures	Evening6 pm to midnight

Midnight

6 AM

Noon

6 PM

Weekly flight availability from Washington, D.C. to Heathrow

Sunday	30daily flights
Monday	30daily flights
Tuesday	30daily flights
Wednesday	30daily flights
Thursday	30daily flights
Friday	30daily flights
Saturday	24daily flights

Cheap flights from Washington, D.C. (WAS) to Heathrow (LHR) from $262

This is the cheapest one-way flight price, found on 5/31. Prices may vary by date and flight preferences.

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How to find the cheapest flight from Washington, D.C. (WAS) to Heathrow (LHR)

All the information you need to plan the best WAS to LHR flight in 2023: compare Washington, D.C. to Heathrow flight prices with the expected peak season, weather and rainfall in Heathrow.

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Cheap flights from Washington, D.C. to Heathrow in June, July 2023

The best prices found for WAS to LHR flights for June, July

These are some of the best deals we've found on flights to London in 2023 at this time. Check back soon for alternative fares.

Washington, D.C. to Heathrow 2023 flight deals

Cheap flights to Heathrow from Washington, D.C. found for this year

These are some of the best deals we've found on flights to London in 2023 at this time. Check back soon for alternative fares.

Cheap Icelandair flights from Washington, D.C. to Heathrow

Find some of the cheapest Icelandair flights traveling from Washington, D.C. to London. Come back soon if you're not finding the exact deal you're looking for.

Cheap United Airlines flights from Washington, D.C. to Heathrow

Take a gander at the lowest prices we've found on United Airlines flights from Washington, D.C. to London. Check back soon if you're not seeing flights that suit your needs.

Non-stop flights to Heathrow from Washington, D.C.

Save time with Washington, D.C. to Heathrow direct flight deals

To help reduce your travel time, choose from one of these non-stop flights from Washington, D.C. to London. Search for alternative flights from Washington, D.C. to London by utilizing the search form above.

Last minute flights from Washington, D.C. to Heathrow

Late deals on return flights to Heathrow from Washington, D.C., departing today and this week

Users seeking a last-minute flight from Washington, D.C. to London should consider booking one of these fares. It's wise to confirm all flight details are correct before booking.

One-way flights to Heathrow from Washington, D.C.

The cheapest one-way flights from Washington, D.C. to Heathrow

Take a look at some of the one-way flights we've detected from Washington, D.C. to London. Users can also find round-trip Washington, D.C. to London flights by using the search form above.

Find flights from Washington, D.C. to Heathrow within your budget

Use the slider to find flights from Washington, D.C. to Heathrow that fit your budget.

Reviews of Airlines Servicing Heathrow

See what other customers who have flown with Icelandair, United Airlines and Air Canada from Washington, D.C. to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Useful info, stats and facts about Washington, D.C. to Heathrow flights.

Which airlines flying from Washington, D.C. to London Heathrow have flexible cancellations due to COVID-19?

Can I find flights from Washington, D.C. to London Heathrow Airport for under $500 on Cheapflights?

Are there nonstop flights from Washington, D.C. to London Heathrow Airport for under $700 on Cheapflights?

Are there last-minute flights available from Washington, D.C. to London Heathrow Airport for under $900?

What are the cheapest airlines flying from Washington, D.C. to London Heathrow Airport round-trip?

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What are the most popular routes from Washington, D.C. to London Heathrow Airport?

What are the most popular airlines that fly from Washington, D.C. to London Heathrow Airport?

What are the most reliable airlines from Washington, D.C. to London Heathrow Airport?

What are the cheapest flights from Washington, D.C. to London Heathrow Airport?

What does IAD to LHR mean?

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Top 10 airlines flying from Washington, D.C. to Heathrow

The chart below displays the airlines Cheapflights users traveling from Washington, D.C. to Heathrow choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

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Hourly flight availability from Washington, D.C. to Heathrow

See what time of day planes typically take off from Washington, D.C. to Heathrow

Weekly flight availability from Washington, D.C. to Heathrow

See how many times per day planes take to the skies headed from Washington, D.C. to Heathrow