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$530+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Heathrow to Washington

Keep the following information in mind while searching for Heathrow to Washington flight deals. Data was last updated June 12, 2025.

Round-trip from

$644
(Netflights)

One-way from

$532
(Gurufare)

Popular in

August

Cheapest in

January

Average price

$757

Good round-trip deal

$668 or less

Good one-way deal

$621 or less
From London Heathrow to Washington
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One-way flight from London Heathrow to Washington
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Highest demand for flights based on searches. 15% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from London Heathrow to Washington.
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Price to beat on a one-way flight from London Heathrow to Washington.
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Find 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 June 12, 2025.

This Netflights deal was found by Cheapflights users on 6/11. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:15 amLHR - GEG
2 stops20h 30mVirgin Atlantic
Wed 9/1710:20 amGEG - LHR
2 stops15h 55mVirgin Atlantic
Deal found 6/11$644
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/104:30 pmLHR - SEA
Nonstop9h 50mBritish Airways
Sun 9/148:20 pmSEA - LHR
Nonstop9h 20mBritish Airways
Deal found 6/11$646
This TravelUp deal was found by Cheapflights users on 6/10. 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.
Tue 6/176:30 amLHR - SEA
1 stop13h 10mKLM
Tue 6/241:55 pmSEA - LHR
1 stop12h 50mKLM
Deal found 6/10$647
This Booking.com deal was found by Cheapflights users on 6/12. 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.
Wed 7/96:15 amLHR - SEA
1 stop13h 00mVirgin Atlantic
Tue 7/225:35 pmSEA - LHR
Nonstop9h 45mVirgin Atlantic
Deal found 6/12$649
This Delta deal was found by Cheapflights users on 6/11. 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.
Sun 8/3111:45 amLHR - SEA
1 stop32h 00mDelta
Mon 9/88:25 pmSEA - LHR
Nonstop9h 50mDelta
Deal found 6/11$652
This The Travel House deal was found by Cheapflights users on 6/10. 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.
Wed 10/16:40 amLHR - SEA
1 stop15h 20mScandinavian Airlines
Wed 10/2912:00 pmSEA - LHR
2 stops45h 00mScandinavian Airlines
Deal found 6/10$653
This Gotogate deal was found by Cheapflights users on 6/12. 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 7/99:25 pmLHR - SEA
1 stop22h 00mIcelandair
Mon 7/2111:30 pmSEA - LHR
1 stop28h 25mIcelandair
Deal found 6/12$654
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 8/181:10 pmLHR - SEA
1 stop14h 52mAmerican Airlines
Thu 9/111:07 pmSEA - LHR
1 stop15h 08mAmerican Airlines
Deal found 6/10$656
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Fri 8/227:30 amLHR - SEA
2 stops19h 06mMultiple Airlines
Sun 9/145:30 amSEA - LHR
2 stops17h 00mMultiple Airlines
Deal found 6/12$662
This Air Canada deal was found by Cheapflights users on 6/11. 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 9/108:40 amLHR - SEA
2 stops18h 51mAir Canada
Sun 9/145:30 amSEA - LHR
2 stops17h 00mAir Canada
Deal found 6/11$665
This TravelUp deal was found by Cheapflights users on 6/10. 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 7/25:25 pmLHR - SEA
Nonstop10h 20mAir France
Mon 7/78:25 pmSEA - LHR
Nonstop9h 50mAir France
Deal found 6/10$666
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 10/317:40 amLHR - SEA
1 stop13h 40mUnited Airlines
Sat 11/158:36 amSEA - LHR
2 stops17h 49mUnited Airlines
Deal found 6/10$668

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 June 12, 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

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

Tue 9/9

6:15 am-6:45 pm

2 stops20h 30m

Spokane

Wed 9/17

10:20 am-10:15 am

2 stops15h 55m

$644

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 9/10

4:30 pm-6:20 pm

Nonstop9h 50m

Seattle/Tacoma Intl

Sun 9/14

8:20 pm-1:40 pm

Nonstop9h 20m

$646

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 7/9

9:00 am-5:25 pm

1 stop16h 25m

Seattle/Tacoma Intl

Wed 7/16

8:25 pm-2:15 pm

Nonstop9h 50m

$647

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 7/9

6:15 am-11:15 am

1 stop13h 00m

Seattle/Tacoma Intl

Tue 7/22

5:35 pm-11:20 am

Nonstop9h 45m

$649

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 8/31

11:45 am-11:45 am

1 stop32h 00m

Seattle/Tacoma Intl

Mon 9/8

8:25 pm-2:15 pm

Nonstop9h 50m

$652

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 10/1

6:40 am-2:00 pm

1 stop15h 20m

Seattle/Tacoma Intl

Wed 10/29

12:00 pm-4:00 pm

2 stops45h 00m

$653

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 7/9

9:25 pm-11:25 am

1 stop22h 00m

Seattle/Tacoma Intl

Mon 7/21

11:30 pm-11:55 am

1 stop28h 25m

$654

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 8/18

1:10 pm-8:02 pm

1 stop14h 52m

Seattle/Tacoma Intl

Thu 9/11

1:07 pm-12:15 pm

1 stop15h 08m

$656

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 8/22

7:30 am-6:36 pm

2 stops19h 06m

Seattle/Tacoma Intl

Sun 9/14

5:30 am-6:30 am

2 stops17h 00m

$662

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 9/10

8:40 am-7:31 pm

2 stops18h 51m

Seattle/Tacoma Intl

Sun 9/14

5:30 am-6:30 am

2 stops17h 00m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 $238). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of $391). 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 June 12, 2025.

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 June 12, 2025.

The most flights from LHR to USWA are scheduled on a Monday (22 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Washington by month

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

In terms of precipitation, rainfall in State of Washington ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit State of Washington when rainfall is around 0.7 in.

Temperature in Washington by month

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

If weather is an important factor for your trip to State of Washington, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
See what other customers who have flown with Delta, KLM and Finnair from London to Washington 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
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 Aer Lingus ($532), Scandinavian Airlines ($609), and British Airways ($628).

  • 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 Aeromexico (97%), KLM (92%) or Air France (92%) 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 $532. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for $318 on average our data indicates $2,306 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 $238). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of $391). 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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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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Heathrow to Newark flights
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Gatwick to San Francisco flights
Heathrow to Ontario flights
Heathrow to Midway flights
Heathrow to Denver flights
Stansted to Boston flights
London City to San Francisco flights
Heathrow to George Bush Intcntl flights
Gatwick to Dulles Intl flights

Top 6 airlines flying from Heathrow to Washington

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$449Average$677FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$560Average$763FlexibilityNo cancel feeOn-time70%
IberiaCheapest$575Average$1,001FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$594Average$941FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$620Average$889FlexibilityNo cancel feeOn-time71%
DeltaCheapest$632Average$1,018FlexibilityNo cancel feeOn-timeN/A

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