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$194+ Cheap flights from Washington, D.C. (WAS) to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LHR
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Washington, D.C. to London Heathrow are usually found in April or October, booked 21 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Washington, D.C. to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

April

Round-trip from

$486
(oojo)

One-way from

$194
(oojo)
Provider with most accurate pricing for Washington, D.C. (WAS)-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-London Heathrow flights.
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High demand for flights, 28% potential price rise
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Best time to find cheap flights, 15% potential price drop
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From Washington, D.C. (WAS) to London Heathrow
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One-way flight from Washington, D.C. (WAS) to London Heathrow
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Find flight deals from Washington, D.C. to Heathrow

Cheapest flights from Washington, D.C. to Heathrow
Explore the most affordable flight options available from Washington, D.C. to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/96:55 amBWI - LHR
1 stop20h 00mMultiple Airlines
Wed 12/182:35 pmLHR - BWI
1 stop14h 06mMultiple Airlines
Deal found 11/20$498
This Gotogate deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/107:30 pmBWI - LHR
1 stop19h 00mIcelandair
Fri 1/1712:15 pmLHR - BWI
1 stop11h 15mIcelandair
Deal found 11/19$509
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/95:10 pmIAD - LHR
1 stop11h 10mScandinavian Airlines
Wed 12/256:40 amLHR - IAD
1 stop14h 00mScandinavian Airlines
Deal found 11/19$548
This Gotogate deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/47:40 pmIAD - LHR
1 stop18h 50mIcelandair
Wed 12/118:40 pmLHR - IAD
1 stop26h 45mIcelandair
Deal found 11/19$552
This The Travel House deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:00 amDCA - LHR
1 stop18h 55mIcelandair
Thu 4/2411:55 amLHR - DCA
1 stop24h 22mIcelandair
Deal found 11/20$555
This JetBlue deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/99:45 amDCA - LHR
1 stop15h 10mJetBlue
Wed 12/258:25 amLHR - DCA
1 stop12h 19mJetBlue
Deal found 11/19$564
This Gotogate deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/302:35 pmIAD - LHR
1 stop12h 55mMultiple Airlines
Thu 4/246:00 amLHR - IAD
1 stop15h 25mMultiple Airlines
Deal found 11/20$586
This lol.travel deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/86:25 pmIAD - LHR
Nonstop7h 30mVirgin Atlantic
Tue 12/176:20 amLHR - IAD
1 stop18h 05mVirgin Atlantic
Deal found 11/19$593
This Air Canada deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/412:55 pmDCA - LHR
2 stops13h 15mMultiple Airlines
Wed 12/119:30 amLHR - DCA
2 stops15h 27mMultiple Airlines
Deal found 11/19$606
This Justfly.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/411:00 amDCA - LHR
1 stop15h 10mAir Canada
Thu 12/129:30 amLHR - DCA
2 stops15h 27mAir Canada
Deal found 11/20$607
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:25 pmIAD - LHR
Nonstop7h 15mUnited Airlines
Mon 12/91:45 pmLHR - IAD
1 stop31h 40mUnited Airlines
Deal found 11/20$611
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:25 pmIAD - LHR
Nonstop7h 30mDelta
Wed 12/188:40 amLHR - IAD
1 stop12h 05mDelta
Deal found 11/19$615

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

Customize your flight search to find flights from Washington, D.C. to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Sat 2/8

7:30 pm-7:30 pm

1 stop19h 00m

London Heathrow

Wed 2/19

12:15 pm-6:30 pm

1 stop11h 15m

$485

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Sun 1/12

7:30 pm-10:50 am

1 stop10h 20m

London Heathrow

Sun 1/19

7:20 am-5:00 pm

1 stop14h 40m

$519

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 12/9

5:10 pm-9:20 am

1 stop11h 10m

London Heathrow

Wed 12/25

6:40 am-3:40 pm

1 stop14h 00m

$548

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 1/16

10:45 am-5:55 am

1 stop14h 10m

London Heathrow

Thu 1/23

8:25 am-4:00 pm

1 stop12h 35m

$549

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 3/26

8:40 pm-7:30 pm

1 stop18h 50m

London Heathrow

Mon 3/31

9:25 pm-7:15 pm

1 stop26h 50m

$549

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Mon 12/30

6:00 am-5:55 am

1 stop18h 55m

London Heathrow

Thu 4/24

11:55 am-7:17 am

1 stop24h 22m

$555

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 3/16

7:10 pm-3:00 pm

1 stop15h 50m

London Heathrow

Sun 3/23

9:00 pm-6:00 pm

2 stops25h 00m

$558

BaltimoreLondon

BWI - LHR

BWILHR

Baltimore/Washington

Wed 3/5

8:30 pm-8:40 am

Nonstop7h 10m

London Heathrow

Wed 3/12

3:25 pm-7:45 pm

Nonstop8h 20m

$572

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 1/13

7:15 pm-10:40 pm

1 stop22h 25m

London Heathrow

Thu 1/16

6:30 pm-9:00 pm

1 stop31h 30m

$575

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 12/8

6:25 pm-6:55 am

Nonstop7h 30m

London Heathrow

Tue 12/17

6:20 am-7:25 pm

1 stop18h 05m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
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Compare providers for flights from Washington, D.C. to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Heathrow in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Washington, D.C. to Heathrow

Get recent, data-driven insights about flights from Washington, D.C. to Heathrow including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Heathrow. Price data was last updated on November 15, 2024.

Booking 21 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to London Heathrow Airport (average of $648). Flying from Washington, D.C. to London Heathrow Airport in June is currently the most expensive (average of $1,089). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to LHR?

Find hourly flight availability from Washington, D.C. to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

It’s typically best to fly out from Washington, D.C. to London Heathrow Airport in the morning. Doing so could potentially save you 11% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Heathrow. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Washington, D.C. to London Heathrow Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

Explore weekly flight availability from Washington, D.C. to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from WAS to LHR are scheduled on a Monday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated November 20, 2024.
See what other customers who have flown with Scandinavian Airlines, JetBlue and Virgin Atlantic 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.
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines
7.6
Good
805 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.6
Good
1,637 reviews
Delta
8.0
Very good
8,756 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Flying on Icelandair is currently your cheapest option to London Heathrow Airport, with prices starting at $486. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and JetBlue, with the lowest prices starting at $548 and $549, respectively. Icelandair is currently priced 37% 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 $194 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $297 and JetBlue from $314 one-way.

  • 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 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: Air France (82%), Virgin Atlantic (76%), Singapore Airlines (76%).

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

    Looking at all options, your cheapest flight can be booked for $373. While the most popular route (Washington, D.C. Dulles Intl - London Heathrow) can be booked for $461 on average our data indicates $2,053 when flying from Washington, D.C. to London Heathrow Airport.

  • Where are the most common layover locations when flying from Washington, D.C. to London Heathrow Airport?

    Washington, D.C. to London Heathrow Airport flights have a layover in Reykjavik most of the time.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are the most popular attractions in Reykjavik if you're in need of something to do during your layover. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool can be accessed by traveling approximately 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $47 per day.

  • Where are the least popular layover locations for Washington, D.C. to London Heathrow Airport flights?

    Washington, D.C. to London Heathrow Airport flights that have layovers will least frequently stop in Dublin.

  • Can I find deals for flights from Washington, D.C. to Heathrow that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Heathrow.

  • Can I find deals for business class flights from Washington, D.C. to Heathrow?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to London Heathrow Airport (average of $648). Flying from Washington, D.C. to London Heathrow Airport in June is currently the most expensive (average of $1,089). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

Discover the top 10 airlines that operate flights from Washington, D.C. to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$366Average$508FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$432Average$528FlexibilityNo cancel feeOn-time77%
DeltaCheapest$440Average$834FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$470Average$649FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$479Average$580FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$483Average$678FlexibilityNo cancel feeOn-time76%
IberiaCheapest$542Average$736FlexibilityNo cancel feeOn-time77%
KLMCheapest$546Average$798FlexibilityNo cancel feeOn-time75%
FinnairCheapest$551Average$696FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$557Average$839FlexibilityNo cancel feeOn-time76%
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