HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington

$419+ Cheap flights from Heathrow (LHR) to Washington

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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Heathrow to Washington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Heathrow to Washington

Cheapest flights from Heathrow to Washington
Explore the most affordable flight options available from Heathrow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This The Travel House deal was found by Cheapflights users on 2/3. 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 5/49:25 pm
LHR
-
SEA
1 stop28h 30m
Icelandair
Fri 5/87:00 pm
SEA
-
LHR
1 stop17h 20m
Icelandair
Deal found 2/3$482
This Booking.com deal was found by Cheapflights users on 2/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:25 pm
LHR
-
SEA
1 stop31h 15m
Icelandair
Tue 10/133:40 pm
SEA
-
LHR
1 stop20h 40m
Icelandair
Deal found 2/3$490
This Ticket deal was found by Cheapflights users on 2/2. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:20 am
LHR
-
SEA
1 stop13h 05m
Virgin Atlantic
Thu 3/267:20 am
SEA
-
LHR
1 stop16h 30m
Virgin Atlantic
Deal found 2/2$504
This Gotogate deal was found by Cheapflights users on 2/2. 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.
Thu 2/1912:15 pm
LHR
-
SEA
1 stop12h 45m
Icelandair
Wed 3/113:35 pm
SEA
-
LHR
1 stop12h 15m
Icelandair
Deal found 2/2$505
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/169:50 am
LHR
-
SEA
1 stop16h 30m
Aer Lingus
Mon 3/28:05 pm
SEA
-
LHR
1 stop15h 45m
Aer Lingus
Deal found 2/2$506
This Mytrip deal was found by Cheapflights users on 2/2. 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.
Thu 2/1912:15 pm
LHR
-
SEA
1 stop12h 45m
Icelandair
Tue 3/32:35 pm
SEA
-
LHR
1 stop20h 55m
Icelandair
Deal found 2/2$509
This TravelUp deal was found by Cheapflights users on 2/2. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:30 pm
LHR
-
SEA
Nonstop10h 05m
Virgin Atlantic
Mon 3/167:25 pm
SEA
-
LHR
Nonstop9h 30m
Virgin Atlantic
Deal found 2/2$512
This TravelUp deal was found by Cheapflights users on 2/2. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/412:20 pm
LHR
-
SEA
Nonstop10h 25m
Virgin Atlantic
Wed 3/185:40 pm
SEA
-
LHR
Nonstop9h 50m
Virgin Atlantic
Deal found 2/2$513
This lastminute.com deal was found by Cheapflights users on 2/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:15 pm
LHR
-
SEA
1 stop12h 45m
Icelandair
Mon 2/232:35 pm
SEA
-
LHR
1 stop12h 15m
Icelandair
Deal found 2/2$517
This Flightnetwork deal was found by Cheapflights users on 2/2. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/88:35 pm
LHR
-
PDX
1 stop28h 25m
Icelandair
Mon 3/163:45 pm
PDX
-
LHR
1 stop12h 05m
Icelandair
Deal found 2/2$651
This Gotogate deal was found by Cheapflights users on 2/3. 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 3/178:35 pm
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 3/313:30 pm
PDX
-
LHR
1 stop20h 50m
Icelandair
Deal found 2/3$660
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:35 pm
LHR
-
PDX
1 stop28h 25m
Icelandair
Tue 3/103:45 pm
PDX
-
LHR
1 stop12h 05m
Icelandair
Deal found 2/2$680

Find flight deals from Heathrow to Washington

Keep the following information in mind while searching for Heathrow to Washington flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$482
(The Travel House)

One-way from

$419
(Trip.com)

Popular in

July

Cheapest in

February

Average price

$616

Good round-trip deal

$600 or less

Good one-way deal

$609 or less
Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.
Search Deals
From London Heathrow to Washington
Search Deals
One-way flight from London Heathrow to Washington
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Washington.
Search Deals
Price to beat on a one-way flight from London Heathrow to Washington.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Washington 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 February 4, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Washington that are best for you.

Fly from

Heathrow

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 3/2

6:30 am-11:35 am

1 stop13h 05m

Seattle/Tacoma Intl

Mon 3/16

5:40 pm-10:30 am

Nonstop9h 50m

$526

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 3/10

6:30 am-12:35 pm

1 stop13h 05m

Seattle/Tacoma Intl

Tue 3/17

7:25 pm-11:55 am

Nonstop9h 30m

$526

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 2/20

6:35 am-1:20 pm

1 stop14h 45m

Seattle/Tacoma Intl

Thu 2/26

11:59 pm-7:55 am

1 stop23h 56m

$539

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 2/18

7:40 am-1:20 pm

1 stop13h 40m

Seattle/Tacoma Intl

Tue 2/24

9:55 am-10:10 am

2 stops16h 15m

$539

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 2/18

6:35 am-1:20 pm

1 stop14h 45m

Seattle/Tacoma Intl

Sat 2/21

7:00 am-7:55 am

1 stop16h 55m

$539

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 4/27

5:45 pm-8:04 pm

Nonstop10h 19m

Seattle/Tacoma Intl

Sun 5/3

4:00 pm-2:35 pm

1 stop14h 35m

$560

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 3/9

7:30 am-6:04 pm

2 stops17h 34m

Seattle/Tacoma Intl

Mon 3/16

7:00 am-6:20 am

2 stops16h 20m

$561

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 2/17

2:30 pm-9:15 am

1 stop26h 45m

Seattle/Tacoma Intl

Fri 2/20

12:55 pm-9:40 am

1 stop12h 45m

$572

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 3/5

2:30 pm-4:35 pm

Nonstop10h 05m

Seattle/Tacoma Intl

Wed 3/18

10:25 pm-6:50 am

1 stop25h 25m

$604

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 5/22

7:30 pm-1:45 pm

1 stop26h 15m

Seattle/Tacoma Intl

Tue 5/26

3:55 pm-5:40 pm

1 stop17h 45m

$659

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 59 results
1
2
3
...
6

Best time to book a flight from Heathrow to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington 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

What is the cheapest month to book a flight from London Heathrow Airport to State of Washington?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of $503). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of $676). 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 WA?

Find hourly flight availability from Heathrow to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 4, 2026.

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

Weekly flight availability from London Heathrow Airport to State of Washington

Explore weekly flight availability from Heathrow to Washington. 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 February 4, 2026.

The most flights from LHR to USWA are scheduled on a Tuesday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost to fly round-trip from London Heathrow Airport to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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. Reviews last updated February 4, 2026.
Peruse reviews from past customers who have flown with Delta, Virgin Atlantic, and American Airlines from London Heathrow Airport to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,146 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

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
8,146 reviews
Delta
7.9
Good
8,146 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

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
678 reviews
Delta
7.9
Good
8,146 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

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
7.2
Good
11,224 reviews
Delta
7.9
Good
8,146 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

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
7,716 reviews
Delta
7.9
Good
8,146 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Food

7.2

Entertainment

7.8

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. 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 State of Washington?

    For as low as $526, Delta can have you in State of Washington from London Heathrow Airport in 13h 05m. The distance from London Heathrow Airport to State of Washington is about 4783 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London Heathrow Airport to State of Washington one-way?

    The cheapest airlines for a one-way flight from London Heathrow Airport to State of Washington are Scandinavian Airlines ($383), WestJet ($448), and Aer Lingus ($469).

  • What are the most popular routes from London Heathrow Airport to State of Washington?

    While some choose either London Heathrow - Portland or London Heathrow - Pasco Tri Cities, London Heathrow - Seattle/Tacoma Intl is the most popular route from London Heathrow Airport to State of Washington.

  • What are the most reliable airlines from London Heathrow Airport to State of Washington?

    Consider KLM (89%), Air France (89%) or Delta (89%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to State of Washington.

  • What are the cheapest flights from London Heathrow Airport to State of Washington?

    Looking at all options, your cheapest flight can be booked for $522. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for $403 on average, our data indicates $1,539 when flying from London Heathrow Airport to State of Washington.

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

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

  • How can I find direct flights from Heathrow to Washington?

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

  • Can I find deals for business class flights from Heathrow to Washington?

    Yes. Cheapflights offers flight deals from Heathrow to Washington 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 State of Washington?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of $503). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of $676). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Heathrow to LaGuardia flights
Gatwick to Newark flights
London City to John F Kennedy Intl flights
Gatwick to John F Kennedy Intl flights
Heathrow to Orlando flights
Heathrow to Los Angeles flights
Stansted to John F Kennedy Intl flights
Gatwick to LaGuardia flights
Heathrow to Miami flights
Luton to John F Kennedy Intl flights
Stansted to Newark flights
Luton to Newark flights
London City to Newark flights
Heathrow to Boston flights
Gatwick to Orlando flights
Heathrow to Dallas/Fort Worth flights
Heathrow to San Francisco flights
Heathrow to Seattle flights
Heathrow to Las Vegas flights
Heathrow to O'Hare Intl flights
Heathrow to Dulles Intl flights
Gatwick to Los Angeles flights
London City to Los Angeles flights
Heathrow to Hobby flights
Gatwick to Boston flights
Stansted to Orlando flights
Stansted to Los Angeles flights
Gatwick to Miami flights
Heathrow to Baltimore flights
Stansted to Miami flights
Heathrow to Atlanta flights
London City to Miami flights
Heathrow to Tampa flights
Heathrow to George Bush Intcntl flights
Luton to Miami flights
Heathrow to Ontario flights
London City to Boston flights
Heathrow to Denver flights
Gatwick to Seattle flights
Gatwick to San Francisco flights
Stansted to Boston flights
Heathrow to Fort Lauderdale flights
Gatwick to Las Vegas flights
Gatwick to Dallas/Fort Worth flights
Luton to Los Angeles flights
Luton to Orlando flights
London City to San Francisco flights

Top 4 airlines flying from Heathrow to Washington

Discover the top 4 airlines that operate flights from Heathrow to Washington. 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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$574Average$801FlexibilityNo cancel feeOn-time72%
DeltaCheapest$594Average$871FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$618Average$854FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$660Average$778FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights