Cheap flights from the United Kingdom to Washington from £266

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
3 Sep — 10 Sep1
1 adult

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 29 August 2025.

Round-trip from

£424

One-way from

£266

Popular in

August

Cheapest in

January

Average price

£696

Good round-trip deal

£535 or less

Good one-way deal

£602 or less
9/10-12/10
  • 9/10-12/10
  • 4 total stops
  • 57h 10m total
  • United Kingdom to Washington
9/9
  • 9/9
  • 3 total stops
  • 41h 36m total
  • United Kingdom to Washington
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from United Kingdom to Washington.
Price to beat on a one-way flight from United Kingdom to Washington.

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 29 August 2025.

Thu 9/1011:40EDI - SEA
2 stops34h 20mMultiple Airlines
Sun 12/1016:20SEA - EDI
2 stops22h 50mMultiple Airlines
Deal found 29/8£424
Fri 17/1019:45EDI - SEA
2 stops50h 15mScandinavian Airlines
Sun 19/1016:20SEA - EDI
2 stops36h 10mScandinavian Airlines
Deal found 28/8£447
Fri 7/1111:30EDI - SEA
1 stop13h 30mIcelandair
Wed 12/1114:35SEA - EDI
1 stop11h 45mIcelandair
Deal found 28/8£454
Fri 7/1111:30EDI - SEA
1 stop13h 30mIcelandair
Mon 10/1114:35SEA - EDI
1 stop11h 45mIcelandair
Deal found 28/8£455
Fri 14/1114:30LHR - SEA
1 stop27h 01mAir Canada
Thu 18/1208:15SEA - LHR
1 stop14h 15mAir Canada
Deal found 28/8£471
Fri 19/910:55LGW - SEA
1 stop19h 35mMultiple Airlines
Wed 24/907:55SEA - LGW
1 stop19h 00mMultiple Airlines
Deal found 28/8£472
Sun 12/1007:25LHR - SEA
1 stop17h 34mUnited Airlines
Sun 19/1011:10SEA - LHR
2 stops17h 30mUnited Airlines
Deal found 28/8£472
Sat 4/1015:40LGW - SEA
1 stop34h 10mIcelandair
Fri 10/1019:00SEA - LGW
1 stop11h 40mIcelandair
Deal found 28/8£473
Thu 4/913:25LHR - SEA
Nonstop10h 05mVirgin Atlantic
Thu 18/910:15SEA - LHR
1 stop15h 45mVirgin Atlantic
Deal found 28/8£473
Mon 15/917:25LHR - SEA
Nonstop10h 25mDelta
Tue 30/920:25SEA - LHR
Nonstop9h 50mDelta
Deal found 27/8£474
Tue 16/915:05LGW - SEA
2 stops25h 07mAmerican Airlines
Wed 24/906:05SEA - LGW
2 stops18h 05mAmerican Airlines
Deal found 27/8£474
Thu 13/1118:15LCY - SEA
1 stop25h 55mLufthansa
Mon 17/1114:00SEA - LCY
1 stop18h 40mLufthansa
Deal found 28/8£474

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 29 August 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

EdinburghSeattle

EDI - SEA

EDISEA

Edinburgh Turnhouse

Thu 9/10

11:40-14:00

2 stops34h 20m

Seattle/Tacoma Intl

Sun 12/10

16:20-23:10

2 stops22h 50m

£424

EdinburghSeattle

EDI - SEA

EDISEA

Edinburgh Turnhouse

Fri 17/10

19:45-14:00

2 stops50h 15m

Seattle/Tacoma Intl

Sun 19/10

16:20-12:30

2 stops36h 10m

£447

EdinburghSeattle

EDI - SEA

EDISEA

Edinburgh Turnhouse

Fri 7/11

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Wed 12/11

14:35-10:20

1 stop11h 45m

£454

EdinburghSeattle

EDI - SEA

EDISEA

Edinburgh Turnhouse

Fri 7/11

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Mon 10/11

14:35-10:20

1 stop11h 45m

£455

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Sat 15/11

14:30-22:06

1 stop15h 36m

Seattle/Tacoma Intl

Thu 18/12

08:15-06:30

1 stop14h 15m

£471

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 14/11

14:30-09:31

1 stop27h 01m

Seattle/Tacoma Intl

Thu 18/12

08:15-06:30

1 stop14h 15m

£471

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 19/9

10:55-22:30

1 stop19h 35m

Seattle/Tacoma Intl

Wed 24/9

07:55-10:55

1 stop19h 00m

£472

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 10/9

17:25-19:50

Nonstop10h 25m

Seattle/Tacoma Intl

Mon 15/9

20:25-14:15

Nonstop9h 50m

£473

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 3/12

12:35-23:38

1 stop19h 03m

Seattle/Tacoma Intl

Tue 9/12

09:00-12:05

2 stops19h 05m

£473

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 8/1

12:20-14:50

Nonstop10h 30m

Seattle/Tacoma Intl

Thu 15/1

07:20-06:55

1 stop15h 35m

£473

Flights are sorted by cheapest return flights first.

Deals found on 27/8

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 return 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 £622). Flying from United Kingdom to State of Washington in July is currently the most expensive (average of £946). 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 29 August 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 29 August 2025.

The most flights from GB0 to USWA are scheduled on a Wednesday (25 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 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 29 August 2025.
Get a feel of what it's like to fly with KLM, Air France, andVirgin Atlantic from the United Kingdom to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Crew

8.4

Boarding

7.8

Entertainment

7.1

Comfort

7.7

Overall

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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?

    Scandinavian Airlines, Icelandair, and Air Canada can get you from United Kingdom to State of Washington in just under 13h 30m. Your travel time can differ by up to 36h 45m. There are 4468 mi between United Kingdom and State of Washington. This flight may include one or multiple stops.

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

    £369 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Aer Lingus and Lufthansa, with prices starting from £442 and £490, respectively.

  • 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 holiday 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 £622). Flying from United Kingdom to State of Washington in July is currently the most expensive (average of £946). 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.

Top 10 airlines flying from United Kingdom to Washington

Discover the top 10 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 858,174 searches. Data last updated 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£323Average£598FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£382Average£669FlexibilityNo cancel feeOn-time77%
Search Air France flights
LufthansaCheapest£393Average£571FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£395Average£589FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£402Average£647FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£403Average£642FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£428Average£682FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£441Average£639FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
DeltaCheapest£442Average£625FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£458Average£641FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from United Kingdom to Washington?

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Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Washington?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Washington.

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Users can book flights with no change fees policies with our dedicated filters. Book flights from United Kingdom to Washington flexibly with Cheapflights today.

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