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

WAS — LHR
Oct 1 — Oct 81

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 2022: compare Washington, D.C. to Heathrow flight prices with the expected peak season, weather and rainfall in Heathrow.

WAS - LHR

Price

$657 - $912

LHR

Temperature

39.2 - 62.6 °F

LHR

Rainfall

1.6 - 2.8 inches

Popular inJulyHigh demand for flights, 18% potential price rise
Cheapest inMarchBest time to find cheap flights, 12% potential price drop
Round-trip from$657From Washington, D.C. (WAS) to London Heathrow
One-way from$290One-way flight from Washington, D.C. (WAS) to London Heathrow

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

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 29% 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 $882. For sooner than that we have options available in the next 3 days from $1,011.

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

Our data shows that March tends to be the cheapest month to fly to London Heathrow Airport from Washington, D.C.. Users have commonly found prices around $728 for the month, but tickets can be as low as $501. 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.

Cheap flights from Washington, D.C. to Heathrow in September, October 2022

The best prices found for WAS to LHR flights for September, October
Oct 24 - Nov 6
BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 25m
LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

11h 15m
$463

Icelandair

Pick Dates

Deal found 24/9/22

Oct 24 - Nov 6
BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 25m
LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

11h 15m
$464

Icelandair

Pick Dates

Deal found 24/9/22

Oct 31 - Nov 9
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 00m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

29h 45m
$464

TAP AIR PORTUGAL

Pick Dates

Deal found 26/9/22

Washington, D.C. to Heathrow 2022 flight deals

Cheap flights to Heathrow from Washington, D.C. found for this year
Nov 7 - Dec 5
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 00m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

17h 50m
$354

TAP AIR PORTUGAL

Pick Dates

Deal found 26/9/22

Nov 25 - Dec 6
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

13h 55m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 25m
$360

TAP AIR PORTUGAL

Pick Dates

Deal found 25/9/22

Nov 30 - Dec 5
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

11h 55m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

12h 25m
$365

TAP AIR PORTUGAL

Pick Dates

Deal found 25/9/22

Cheap TAP AIR PORTUGAL flights from Washington, D.C. to Heathrow

Jan 28 - Feb 4
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

12h 50m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 25m
$349

TAP AIR PORTUGAL

Pick Dates

Deal found 25/9/22

Nov 7 - Dec 5
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

18h 00m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

17h 50m
$354

TAP AIR PORTUGAL

Pick Dates

Deal found 26/9/22

Feb 13 - Feb 28
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

19h 05m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 25m
$358

TAP AIR PORTUGAL

Pick Dates

Deal found 24/9/22

  • One of the most popular airlines traveling from Washington, D.C. to London Heathrow Airport is TAP AIR PORTUGAL. Flights from TAP AIR PORTUGAL traveling this route typically cost $846.35 RT. This price is typically 41% 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 $618. 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, TAP AIR PORTUGAL flights are 8% more popular than any other airline flying that same route.

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

Nov 13 - Nov 18
BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 20m
LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

11h 15m
$449

Icelandair

Pick Dates

Deal found 25/9/22

Dec 2 - Dec 4
BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

10h 20m
LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

11h 15m
$450

Icelandair

Pick Dates

Deal found 25/9/22

Feb 1 - Feb 5
BWI

Baltimore/Washington

LHR

London Heathrow

1 stop

19h 00m
LHR

London Heathrow

BWI

Baltimore/Washington

1 stop

11h 15m
$451

Icelandair

Pick Dates

Deal found 25/9/22

  • 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 57% cheaper than other airlines traveling the same route. Flights from Icelandair typically cost $786.45 RT. The cheapest Icelandair flight found for this route was $581. 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 7% more popular than any other airline flying that same route.

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

Save time with Washington, D.C. to Heathrow direct flight deals
Nov 16 - Nov 24
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

6h 55m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$567

Virgin Atlantic

Pick Dates

Deal found 26/9/22

Oct 13 - Nov 24
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$579

Virgin Atlantic

Pick Dates

Deal found 26/9/22

Oct 13 - Nov 24
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

Nonstop

7h 25m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

Nonstop

8h 20m
$581

Virgin Atlantic

Pick Dates

Deal found 25/9/22

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
Oct 4 - Jan 14
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

19h 10m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 25m
$508

TAP AIR PORTUGAL

Pick Dates

Deal found 24/9/22

Oct 4 - Jan 14
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

11h 45m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 25m
$518

TAP AIR PORTUGAL

Pick Dates

Deal found 25/9/22

Oct 4 - Jan 14
IAD

Washington, D.C. Dulles Intl

LHR

London Heathrow

1 stop

19h 10m
LHR

London Heathrow

IAD

Washington, D.C. Dulles Intl

1 stop

13h 25m
$564

TAP AIR PORTUGAL

Pick Dates

Deal found 23/9/22

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

The cheapest one-way flights from Washington, D.C. to Heathrow
Dec 14
BWI

Baltimore/Washington

LHR

London Heathrow

3 stops

23h 15m
$243

Multiple Airlines

Pick Dates

Deal found 25/9/22

Oct 13
BWI

Baltimore/Washington

LHR

London Heathrow

2 stops

36h 13m
$246

Multiple Airlines

Pick Dates

Deal found 23/9/22

Mar 1
BWI

Baltimore/Washington

LHR

London Heathrow

3 stops

32h 29m
$251

Multiple Airlines

Pick Dates

Deal found 24/9/22

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?

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.

Can I find flights from Washington, D.C. to London Heathrow Airport for under $400 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. to London Heathrow Airport for under $400. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $349, but on average you can expect to pay $367.

Are there nonstop flights from Washington, D.C. to London Heathrow Airport for under $600 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. to London Heathrow Airport under $600. A good price for a nonstop flight from Washington, D.C. to London Heathrow Airport is less than $594.

Are there last-minute flights available from Washington, D.C. to London Heathrow Airport for under $600?

There are currently 20+ open flights from Washington, D.C. to London Heathrow Airport within the next 7 days for less than $600.

What days are nonstop flights available from Washington, D.C. to London Heathrow Airport?

Nonstop flights are available for this route on the following days: Saturday.

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

On average, you can expect to see 1 flight from Washington, D.C. to London Heathrow Airport a day.
Evening (6pm - Midnight) - 100% of flight departures

How long is the flight from Washington, D.C. to London Heathrow Airport?

There are many flights that can get you from Washington, D.C. to London Heathrow Airport in 12h 50m. Fly via TAP AIR PORTUGAL to get the fastest option. The distance between Washington, D.C. and London Heathrow Airport is about 3687 mi.

What is the cheapest airline to fly from Washington, D.C. to London Heathrow Airport round-trip?

Flying on TAP AIR PORTUGAL is currently your cheapest option to London Heathrow Airport, with prices starting at $349. TAP AIR PORTUGAL is currently priced 53% below the average price you’ll pay for this route.

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 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 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 (81%), Singapore Airlines (81%), Air Canada (78%).

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

Looking at all options, your cheapest flight can be booked for $392. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for $349 on average our data indicates $3,687 when flying from Washington, D.C. to London Heathrow Airport.

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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$15Average$21FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Virgin AtlanticCheapest$269Average$664FlexibilityNo cancel feeOn-time72%COVID-19 safety
Search Virgin Atlantic flights
KLMCheapest$327Average$661FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search KLM flights
TAP AIR PORTUGALCheapest$372Average$540FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest$385Average$787FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Brussels Airlines flights
PLAYCheapest$386Average$537FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search PLAY flights
Scandinavian AirlinesCheapest$400Average$719FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Scandinavian Airlines flights
IcelandairCheapest$405Average$625FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Icelandair flights
WOW airCheapest$410Average$625FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search WOW air flights
IberiaCheapest$505Average$734FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Iberia flights

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

See what time of day planes typically take off from Washington, D.C. to Heathrow
1%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
57%of flight departuresAfternoonNoon to 6 pm
42%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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
Sunday27daily flights
Monday17daily flights
Tuesday27daily flights
Wednesday21daily flights
Thursday27daily flights
Friday22daily flights
Saturday22daily flights