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Washington, D.C.

$426+ Cheap flights from Heathrow (LHR) to Washington, D.C. (WAS)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — WAS
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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Find cheap flights from Heathrow to Washington, D.C. with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from London Heathrow to Washington, D.C. are usually found in January or September, booked 21 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

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

Cheapest flights from Heathrow to Washington, D.C.
Explore the most affordable flight options available from Heathrow to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2026.

This deal was found by Cheapflights users on 4/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2012:00 pm
LHR
-
IAD
1 stop12h 25m
American Airlines
Mon 5/251:06 pm
IAD
-
LHR
1 stop14h 59m
American Airlines
Deal found 4/21$558
This deal was found by Cheapflights users on 4/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2012:00 pm
LHR
-
DCA
1 stop15h 15m
American Airlines
Mon 5/253:20 pm
DCA
-
LHR
1 stop15h 50m
American Airlines
Deal found 4/21$558
This deal was found by Cheapflights users on 4/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:25 am
LHR
-
IAD
1 stop11h 02m
United Airlines
Sat 5/166:00 am
IAD
-
LHR
1 stop9h 40m
United Airlines
Deal found 4/18$560
This deal was found by Cheapflights users on 4/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:30 am
LHR
-
DCA
1 stop12h 55m
United Airlines
Sun 5/173:05 pm
DCA
-
LHR
1 stop12h 15m
United Airlines
Deal found 4/18$560
This deal was found by Cheapflights users on 4/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:05 pm
LHR
-
IAD
Nonstop8h 15m
British Airways
Sun 5/245:35 pm
IAD
-
LHR
Nonstop7h 45m
British Airways
Deal found 4/21$565
This deal was found by Cheapflights users on 4/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:05 pm
LHR
-
IAD
Nonstop8h 15m
British Airways
Sun 5/317:15 pm
IAD
-
LHR
Nonstop7h 30m
British Airways
Deal found 4/17$567
This deal was found by Cheapflights users on 4/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2511:45 am
LHR
-
IAD
1 stop12h 33m
Delta
Mon 7/1310:21 am
IAD
-
LHR
1 stop15h 04m
Delta
Deal found 4/21$568
This deal was found by Cheapflights users on 4/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/212:10 pm
LHR
-
IAD
Nonstop8h 25m
British Airways
Sun 11/86:20 pm
IAD
-
LHR
Nonstop7h 10m
British Airways
Deal found 4/19$570
This deal was found by Cheapflights users on 4/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/14:20 pm
LHR
-
DCA
1 stop11h 55m
Delta
Tue 7/1412:23 pm
DCA
-
LHR
1 stop13h 47m
Delta
Deal found 4/19$570
This United Airlines deal was found by Cheapflights users on 4/18. 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.
Sat 9/262:10 pm
LHR
-
DCA
1 stop26h 50m
United Airlines
Mon 9/286:00 am
DCA
-
LHR
1 stop10h 35m
United Airlines
Deal found 4/18$573
This deal was found by Cheapflights users on 4/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2611:45 am
LHR
-
IAD
1 stop12h 33m
Delta
Mon 7/1310:21 am
IAD
-
LHR
1 stop15h 04m
Delta
Deal found 4/21$574
This deal was found by Cheapflights users on 4/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/269:40 am
LHR
-
DCA
1 stop11h 28m
Delta
Mon 7/137:35 pm
DCA
-
LHR
1 stop12h 40m
Delta
Deal found 4/21$574

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

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Washington, D.C. (WAS). 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 April 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$558

One-way from

$426

Popular in

July

Cheapest in

January

Average price

$697

Good round-trip deal

$702 or less

Good one-way deal

$760 or less
Provider with most accurate pricing for London Heathrow-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Washington, D.C. (WAS) flights.
Search Deals
From London Heathrow to Washington, D.C. (WAS)
Search Deals
One-way flight from London Heathrow to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from London Heathrow to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Washington, D.C. 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 2,558,603 searches. Data last updated April 22, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Mon 6/29

9:25 pm-10:15 pm

1 stop29h 50m

Baltimore/Washington

Tue 7/14

11:20 pm-8:20 pm

1 stop16h 00m

$660

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Wed 9/9

1:05 pm-10:15 pm

1 stop14h 10m

Baltimore/Washington

Mon 9/21

8:30 pm-11:55 am

1 stop10h 25m

$669

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 9/8

9:25 pm-7:20 pm

1 stop26h 55m

Washington, D.C. Dulles Intl

Tue 9/22

8:30 pm-11:55 am

1 stop10h 25m

$672

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Wed 7/29

9:15 am-8:37 pm

1 stop16h 22m

Baltimore/Washington

Thu 8/27

1:54 pm-6:55 am

1 stop12h 01m

$695

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Tue 9/1

6:50 am-5:29 pm

2 stops15h 39m

Baltimore/Washington

Mon 9/14

7:04 pm-11:55 am

1 stop11h 51m

$699

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 7/1

8:05 pm-7:22 am

1 stop16h 17m

Washington, D.C. Reagan-National

Tue 7/7

1:30 pm-6:20 am

1 stop11h 50m

$712

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 9/14

6:00 am-2:00 pm

1 stop13h 00m

Washington, D.C. Dulles Intl

Thu 9/24

6:35 pm-6:55 am

Nonstop7h 20m

$716

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 7/30

5:55 pm-8:55 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

Thu 8/6

12:29 pm-6:20 am

1 stop12h 51m

$718

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 6/30

5:55 pm-8:55 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

Tue 7/14

10:55 pm-11:20 am

Nonstop7h 25m

$719
Quickest round-trip

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 5/15

5:55 pm-8:55 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

Tue 5/19

10:55 pm-11:20 am

Nonstop7h 25m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Heathrow to Washington, D.C.

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 Heathrow to Washington, D.C. in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
GurufarePrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 London Heathrow Airport-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Washington, D.C. 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 London Heathrow Airport-Washington, D.C. 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 Heathrow to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Heathrow 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Washington, D.C.

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

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Washington, D.C.. Price data was last updated on April 17, 2026.

Booking 21 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Washington, D.C.. 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 London Heathrow Airport to Washington, D.C.?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. (average of $354). Flying from London Heathrow Airport to Washington, D.C. in April is currently the most expensive (average of $1,252). 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 LHR to WAS?

Find hourly flight availability from Heathrow to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Washington, D.C. as you normally would.

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

Explore weekly flight availability from Heathrow to Washington, D.C.. 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 April 22, 2026.

The most flights from LHR to WAS are scheduled on a Monday (30 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (24 on average).

How much does it cost to fly round-trip from London Heathrow Airport to Washington, D.C.?

What’s the top layover airport for flights from London Heathrow Airport to Washington, D.C.?

Share of 1-stop round-trip flights from London Heathrow Airport to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Dublin (DUB) – chosen by Cheapflights users on 20% of 1-stop itineraries from London Heathrow Airport to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from London Heathrow Airport to Washington, D.C.?

Average round-trip fare for 1-stop flights from London Heathrow Airport to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $509.

What’s the fastest layover option from London Heathrow Airport to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from London Heathrow Airport to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 11h 15m.

Which airport typically offers the quickest layover for flights from London Heathrow Airport to Washington, D.C.?

Average layover duration for 1-stop one-way flights from London Heathrow Airport to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Lisbon (LIS) offer the fastest connection on this route, with an average layover time of 1h 23m.

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

About 17% of weekly flights between London and Washington, D.C. have experienced delays in the past year, with the average delay time being 128 minutes.

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

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

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

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

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

Over the last year, Virgin Atlantic have had the lowest number of delays on this route, with just 10% of flights being delayed.

The best insider tips for London Heathrow Airport to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Washington, D.C. trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR and IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated April 22, 2026.
Read reviews from past customers who have flown Delta,Virgin Atlantic, andUnited Airlines from London Heathrow Airport to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,430 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,430 reviews
Delta
7.9
Good
8,430 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Virgin Atlantic
7.5
Good
687 reviews
Delta
7.9
Good
8,430 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,625 reviews
Delta
7.9
Good
8,430 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,647 reviews
Delta
7.9
Good
8,430 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,905 reviews
Delta
7.9
Good
8,430 reviews

Boarding

8.1

Food

7.2

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

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

    Icelandair, British Airways, and United Airlines can get you from London Heathrow Airport to Washington, D.C. in just under 15h 39m. Your travel time can differ by up to 14h 11m. The distance between London Heathrow Airport and Washington, D.C. is about 3622 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Currently priced at $320, Delta will fly you from London Heathrow Airport to Washington, D.C. and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and TAP AIR PORTUGAL - these airlines can fly you to your destination from $466 and $473, respectively. Delta is 55% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $453. Users have also found prices from $455 and $485 on JetBlue and Virgin Atlantic, respectively.

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

    When deciding which route to take from London Heathrow Airport to Washington, D.C. consider London Heathrow - Washington, D.C. Dulles Intl, London Heathrow - Baltimore/Washington or London Heathrow - Washington, D.C. Reagan-National as they are the most popular.

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

    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 London Heathrow Airport to Washington, D.C. on time: Air Canada (87%), Austrian Airlines (87%), Copa Airlines (87%).

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

    Looking at all options, your cheapest flight can be booked for $610. While the most popular route (London Heathrow - Washington, D.C. Dulles Intl) can be booked for $538 on average, our data indicates $1,146 when flying from London Heathrow Airport to Washington, D.C..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Washington, D.C. 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 London Heathrow Airport to Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. (average of $354). Flying from London Heathrow Airport to Washington, D.C. in April is currently the most expensive (average of $1,252). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
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Alternative routes for Heathrow to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Dulles Intl flights
Heathrow to Reagan-National flights
Gatwick to Dulles Intl flights
London City to Dulles Intl flights

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

Discover the top 10 airlines that operate flights from Heathrow to Washington, D.C.. 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 2,558,603 searches. Data last updated April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$320Average$968FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$466Average$709FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$473Average$730FlexibilityNo cancel feeOn-timeN/A
Austrian AirlinesCheapest$534Average$743FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$536Average$742FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$559Average$796FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$567Average$813FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$572Average$826FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$635Average$663FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$658Average$786FlexibilityNo cancel feeOn-timeN/A

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