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$352+ Cheap flights from the United Kingdom 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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from United Kingdom to Washington

Keep the following information in mind while searching for United Kingdom to Washington flight deals. Data was last updated September 15, 2025.

Round-trip from

$604
(Netflights)

One-way from

$352
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$677

Good round-trip deal

$688 or less

Good one-way deal

$736 or less
From United Kingdom to Washington
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One-way flight from United Kingdom to Washington
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Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from United Kingdom to Washington.
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Price to beat on a one-way flight from United Kingdom to Washington.
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Find flight deals from United Kingdom to Washington

Cheapest flights from United Kingdom to Washington
Explore the most affordable flight options available from United Kingdom to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This SmartFares deal was found by Cheapflights users on 9/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:45 pmLHR - SEA
1 stop23h 30mVirgin Atlantic
Mon 10/65:35 pmSEA - LHR
Nonstop9h 45mVirgin Atlantic
Deal found 9/14$603
This Air Canada deal was found by Cheapflights users on 9/13. 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 10/86:30 amLHR - SEA
2 stops15h 46mMultiple Airlines
Tue 10/1410:00 amSEA - LHR
2 stops15h 35mMultiple Airlines
Deal found 9/13$605
This Icelandair deal was found by Cheapflights users on 9/13. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:40 pmLGW - SEA
1 stop13h 00mIcelandair
Mon 10/133:45 pmSEA - LGW
1 stop14h 50mIcelandair
Deal found 9/13$607
This ChecknFly deal was found by Cheapflights users on 9/14. 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 ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2910:30 amLHR - SEA
1 stop16h 39mFinnair
Sun 10/512:34 amSEA - LHR
1 stop25h 56mFinnair
Deal found 9/14$607
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Mon 9/227:30 pmLHR - SEA
2 stops33h 12mAustrian Airlines
Mon 10/67:00 amSEA - LHR
1 stop15h 20mAustrian Airlines
Deal found 9/13$608
This Netflights deal was found by Cheapflights users on 9/13. 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 12/29:25 amLHR - SEA
Nonstop10h 05mBritish Airways
Tue 12/91:25 pmSEA - LHR
Nonstop9h 35mBritish Airways
Deal found 9/13$611
This oojo deal was found by Cheapflights users on 9/14. 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 9/293:40 pmLGW - SEA
1 stop13h 00mIcelandair
Mon 10/67:00 pmSEA - LGW
1 stop11h 35mIcelandair
Deal found 9/14$612
This Mytrip deal was found by Cheapflights users on 9/14. 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 11/38:35 pmLHR - SEA
1 stop28h 25mIcelandair
Sat 3/143:35 pmSEA - LHR
1 stop20h 55mIcelandair
Deal found 9/14$612
This Air Canada deal was found by Cheapflights users on 9/13. 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 10/158:40 amLHR - SEA
2 stops17h 56mMultiple Airlines
Wed 10/227:00 amSEA - LHR
2 stops15h 30mMultiple Airlines
Deal found 9/13$614
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:20 pmLHR - SEA
Nonstop10h 25mVirgin Atlantic
Wed 11/54:48 pmSEA - LHR
Nonstop9h 42mVirgin Atlantic
Deal found 9/13$615
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Sun 10/193:40 pmLGW - SEA
1 stop34h 10mIcelandair
Mon 10/273:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/14$616
This Mytrip deal was found by Cheapflights users on 9/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:00 pmLHR - SEA
2 stops25h 31mAir Canada
Tue 11/410:05 amSEA - LHR
1 stop17h 45mAir Canada
Deal found 9/12$616

Cheapflights Fare Finder

 
Customize your flight search to find flights from United Kingdom 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 September 15, 2025.
Use the filters below to find and compare flights from the United Kingdom to Washington that are best for you.

Fly from

United Kingdom

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 9/25

6:30 am-2:16 pm

2 stops15h 46m

Seattle/Tacoma Intl

Tue 9/30

11:10 am-9:40 am

1 stop14h 30m

$605

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 11/6

7:30 am-6:10 pm

2 stops18h 40m

Seattle/Tacoma Intl

Thu 11/13

7:13 pm-9:20 pm

2 stops18h 07m

$611

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sun 10/19

6:30 am-11:55 am

1 stop13h 25m

Seattle/Tacoma Intl

Sun 11/23

9:25 am-7:25 am

1 stop14h 00m

$619

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 10/6

6:30 am-2:16 pm

2 stops15h 46m

Seattle/Tacoma Intl

Mon 10/27

3:40 pm-11:50 am

1 stop13h 10m

$620

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 12/2

2:55 pm-4:55 pm

Nonstop10h 00m

Seattle/Tacoma Intl

Wed 2/18

6:50 pm-12:20 pm

Nonstop9h 30m

$626

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 10/8

6:30 am-4:05 pm

1 stop17h 35m

Seattle/Tacoma Intl

Tue 10/14

5:35 pm-11:20 am

Nonstop9h 45m

$626

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 10/8

6:30 am-11:50 am

1 stop13h 20m

Seattle/Tacoma Intl

Tue 10/14

8:25 pm-2:15 pm

Nonstop9h 50m

$626

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 12/2

9:25 am-11:30 am

Nonstop10h 05m

Seattle/Tacoma Intl

Tue 12/9

1:28 pm-10:25 am

1 stop12h 57m

$626

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 12/2

11:45 am-11:50 am

1 stop32h 05m

Seattle/Tacoma Intl

Thu 2/19

4:55 pm-10:30 am

Nonstop9h 35m

$626

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 12/2

11:45 am-11:50 am

1 stop32h 05m

Seattle/Tacoma Intl

Wed 2/18

4:55 pm-10:30 am

Nonstop9h 35m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Washington

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

What is the cheapest month to book a flight from United Kingdom to State of Washington?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to State of Washington (average of $238). Flying from United Kingdom to State of Washington in June is currently the most expensive (average of $387). 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 GB to WA?

Find hourly flight availability from United Kingdom 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 September 15, 2025.

When flying from United Kingdom 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 United Kingdom to State of Washington

Explore weekly flight availability from United Kingdom 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 September 15, 2025.

The most flights from GB0 to USWA are scheduled on a Monday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

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 September 15, 2025.
Peruse reviews from past customers who have flown with Delta, Virgin Atlantic, and American Airlines from the United Kingdom 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
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Virgin Atlantic
7.4
Good
664 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Icelandair
7.0
Good
546 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

Find useful and relevant information for your journey from United Kingdom 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 United Kingdom to State of Washington?

    There are many flights that can get you from United Kingdom to State of Washington in 13h. Fly via United Airlines, Icelandair, or Lufthansa to get the fastest option. The distance from United Kingdom to State of Washington is about 4807 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from United Kingdom to State of Washington one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $525. American Airlines flights start at $529 while deals on WestJet start at $531 one-way.

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

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

  • How can I find direct flights from United Kingdom to Washington?

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

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

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

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to State of Washington (average of $238). Flying from United Kingdom to State of Washington in June is currently the most expensive (average of $387). 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 United Kingdom to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from United Kingdom to Washington

Discover the top 5 airlines that operate flights from United Kingdom 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$402Average$754FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$421Average$837FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$594Average$901FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$620Average$777FlexibilityNo cancel feeOn-time71%
DeltaCheapest$621Average$820FlexibilityNo cancel feeOn-timeN/A

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