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$458+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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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 December 26, 2025.

This TravelUp deal was found by Cheapflights users on 12/24. 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 12/3111:35 amLHR - GEG
1 stop17h 23mMultiple Airlines
Tue 1/66:53 amGEG - LHR
1 stop16h 32mMultiple Airlines
Deal found 12/24$794
This United Airlines deal was found by Cheapflights users on 12/24. 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 12/317:40 amLHR - PDX
1 stop19h 21mUnited Airlines
Fri 1/99:50 amPDX - LHR
1 stop18h 00mUnited Airlines
Deal found 12/24$817
This United Airlines deal was found by Cheapflights users on 12/24. 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 12/3111:35 amLHR - GEG
1 stop17h 23mUnited Airlines
Tue 1/65:00 amGEG - LHR
2 stops16h 55mUnited Airlines
Deal found 12/24$826
This The Travel House deal was found by Cheapflights users on 12/24. 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.
Thu 12/257:30 pmLHR - SEA
2 stops33h 20mScandinavian Airlines
Thu 1/19:45 amSEA - LHR
2 stops23h 55mScandinavian Airlines
Deal found 12/24$990
This Travcart deal was found by Cheapflights users on 12/24. 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 Travcart is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:10 pmLHR - SEA
1 stop17h 03mMultiple Airlines
Wed 12/317:07 amSEA - LHR
1 stop15h 43mMultiple Airlines
Deal found 12/24$1,011
This Travcart deal was found by Cheapflights users on 12/24. 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 Travcart is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:25 amLHR - SEA
Nonstop10h 05mFinnair
Wed 12/317:07 amSEA - LHR
1 stop15h 43mFinnair
Deal found 12/24$1,013
This American Airlines deal was found by Cheapflights users on 12/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:55 pmLHR - SEA
Nonstop10h 00mAmerican Airlines
Sat 1/311:35 pmSEA - LHR
Nonstop9h 35mAmerican Airlines
Deal found 12/25$1,035
This Expedia deal was found by Cheapflights users on 12/25. 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.
Thu 12/252:55 pmLHR - SEA
Nonstop10h 00mMultiple Airlines
Sat 1/3110:50 amSEA - LHR
1 stop36h 00mMultiple Airlines
Deal found 12/25$1,036
This Expedia deal was found by Cheapflights users on 12/25. 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.
Thu 12/253:00 pmLHR - SEA
1 stop16h 02mIberia
Sat 1/3110:50 amSEA - LHR
1 stop36h 00mIberia
Deal found 12/25$1,041
This American Airlines deal was found by Cheapflights users on 12/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:55 pmLHR - SEA
Nonstop10h 00mAmerican Airlines
Wed 12/3111:20 amSEA - LHR
1 stop12h 55mAmerican Airlines
Deal found 12/24$1,054
This American Airlines deal was found by Cheapflights users on 12/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:25 amLHR - SEA
Nonstop10h 05mAmerican Airlines
Wed 12/3110:16 amSEA - LHR
1 stop14h 19mAmerican Airlines
Deal found 12/25$1,055
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
Fri 12/2612:10 pmLHR - SEA
1 stop14h 10mAer Lingus
Wed 12/318:05 pmSEA - LHR
1 stop12h 45mAer Lingus
Deal found 12/24$1,060

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 December 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$554
(Air Canada)

One-way from

$458
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$853

Good round-trip deal

$700 or less

Good one-way deal

$596 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 ($110 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 December 2025
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.
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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 December 26, 2025.
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

Sun 2/8

2:30 pm-7:16 pm

1 stop12h 46m

Seattle/Tacoma Intl

Sun 2/15

12:12 pm-11:05 am

1 stop14h 53m

$554

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 1/12

6:00 am-10:43 pm

2 stops24h 43m

Seattle/Tacoma Intl

Mon 1/26

12:35 pm-5:50 pm

2 stops21h 15m

$556

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 1/7

8:00 pm-11:19 am

1 stop23h 19m

Seattle/Tacoma Intl

Thu 3/5

6:25 pm-11:55 am

Nonstop9h 30m

$557

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 1/22

6:30 am-11:50 am

1 stop13h 20m

Seattle/Tacoma Intl

Mon 1/26

4:45 pm-10:30 am

Nonstop9h 45m

$560

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 1/8

12:45 pm-11:15 pm

1 stop18h 30m

Seattle/Tacoma Intl

Sat 3/7

9:20 am-7:25 am

1 stop14h 05m

$560

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 2/6

6:30 am-11:40 am

1 stop13h 10m

Seattle/Tacoma Intl

Thu 2/12

4:55 pm-10:30 am

Nonstop9h 35m

$560

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 1/15

6:20 am-11:25 am

1 stop13h 05m

Seattle/Tacoma Intl

Tue 1/20

4:45 pm-10:30 am

Nonstop9h 45m

$566

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 1/15

2:30 pm-4:35 pm

Nonstop10h 05m

Seattle/Tacoma Intl

Mon 3/2

6:25 pm-11:55 am

Nonstop9h 30m

$574

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 1/24

3:05 pm-5:10 pm

Nonstop10h 05m

Seattle/Tacoma Intl

Tue 1/27

4:45 pm-10:30 am

Nonstop9h 45m

$577

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 1/23

12:20 pm-2:49 pm

Nonstop10h 29m

Seattle/Tacoma Intl

Tue 1/27

6:25 pm-11:55 am

Nonstop9h 30m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 52 results
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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 $456). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of $682). 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 December 26, 2025.

When flying from London Heathrow Airport to State of Washington, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 13% versus a flight in the evening.

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 December 26, 2025.

The most flights from LHR to USWA are scheduled on a Monday (15 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 December 26, 2025.
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
8,012 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

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
8,012 reviews
Delta
7.9
Good
8,012 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

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
677 reviews
Delta
7.9
Good
8,012 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

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
11,060 reviews
Delta
7.9
Good
8,012 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

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
7,617 reviews
Delta
7.9
Good
8,012 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

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 $554, United Airlines can have you in State of Washington from London Heathrow Airport in 12h 46m. 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), Aer Lingus ($431), and WestJet ($448).

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

    While some choose either London Heathrow - Portland or London Heathrow - Spokane, 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 Scandinavian Airlines (97%), Air France (93%) or Delta (90%) 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 $503. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for $424 on average, our data indicates $2,230 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 $456). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of $682). 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.

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Alternative routes for Heathrow to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$553Average$755FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$574Average$772FlexibilityNo cancel feeOn-time72%
DeltaCheapest$575Average$860FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$589Average$854FlexibilityNo cancel feeOn-time71%

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