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Cheap flights from the United Kingdom to Washington from £263

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
23 Apr — 30 Apr1
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 18 April 2025.

Round-trip from

£407

One-way from

£263

Popular in

August

Cheapest in

January

Average price

£535

Good round-trip deal

£548 or less

Good one-way deal

£628 or less
United Airlines
  • United Airlines
  • 1/5-8/5
  • 4 total stops
  • 45h 48m total
  • United Kingdom to Washington
27/5
  • 27/5
  • 2 total stops
  • 55h 11m total
  • United Kingdom to Washington
Highest demand for flights based on searches. 16% potential increase in price (£84 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Average for round-trip flights in April 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 18 April 2025.

Thu 1/509:00EDI - SEA
2 stops21h 42mUnited Airlines
Thu 8/523:59SEA - EDI
2 stops24h 06mUnited Airlines
Deal found 17/4£407
Mon 15/907:00EDI - SEA
1 stop12h 35mBritish Airways
Mon 22/920:20SEA - EDI
1 stop12h 20mBritish Airways
Deal found 17/4£452
Tue 6/509:25LHR - SEA
Nonstop9h 45mFinnair
Mon 12/501:10SEA - LHR
2 stops24h 40mFinnair
Deal found 18/4£457
Wed 23/415:40LGW - SEA
1 stop13h 00mIcelandair
Wed 7/515:45SEA - LGW
1 stop12h 00mIcelandair
Deal found 18/4£458
Wed 30/417:00LCY - SEA
2 stops37h 42mLufthansa
Wed 7/514:15SEA - LCY
1 stop18h 10mLufthansa
Deal found 17/4£458
Thu 8/508:40LHR - SEA
2 stops18h 57mAir Canada
Thu 15/511:30SEA - LHR
1 stop16h 20mAir Canada
Deal found 17/4£458
Wed 7/510:55LGW - SEA
2 stops21h 15mMultiple Airlines
Wed 22/1019:00SEA - LGW
1 stop11h 40mMultiple Airlines
Deal found 17/4£459
Tue 6/513:05LHR - SEA
1 stop15h 35mIcelandair
Mon 12/515:45SEA - LHR
1 stop20h 35mIcelandair
Deal found 18/4£461
Thu 1/508:40LHR - SEA
2 stops18h 57mMultiple Airlines
Sun 4/507:20SEA - LHR
1 stop18h 40mMultiple Airlines
Deal found 17/4£461
Wed 7/510:50LHR - SEA
1 stop14h 09mUnited Airlines
Wed 14/507:20SEA - LHR
1 stop15h 10mUnited Airlines
Deal found 16/4£462
Mon 5/509:55LHR - SEA
1 stop14h 02mKLM
Wed 14/517:35SEA - LHR
Nonstop9h 45mKLM
Deal found 17/4£470
Tue 6/513:25LHR - SEA
Nonstop10h 20mVirgin Atlantic
Mon 12/517:35SEA - LHR
Nonstop9h 45mVirgin Atlantic
Deal found 18/4£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 18 April 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 1/5

09:00-22:42

2 stops21h 42m

Seattle/Tacoma Intl

Thu 8/5

23:59-08:05

2 stops24h 06m

£407

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 6/5

09:25-11:10

Nonstop9h 45m

Seattle/Tacoma Intl

Mon 12/5

01:10-09:50

2 stops24h 40m

£457

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 6/5

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Fri 31/10

15:35-10:55

1 stop12h 20m

£458

LondonSeattle

LCY - SEA

LCYSEA

London City

Wed 30/4

17:00-22:42

2 stops37h 42m

Seattle/Tacoma Intl

Wed 7/5

14:15-16:25

1 stop18h 10m

£458

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 8/5

08:40-19:37

2 stops18h 57m

Seattle/Tacoma Intl

Thu 15/5

11:30-11:50

1 stop16h 20m

£458

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 7/5

10:55-00:10

2 stops21h 15m

Seattle/Tacoma Intl

Wed 22/10

19:00-14:40

1 stop11h 40m

£459

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 6/5

13:05-20:40

1 stop15h 35m

Seattle/Tacoma Intl

Mon 12/5

15:45-20:20

1 stop20h 35m

£461

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 1/5

08:40-19:37

2 stops18h 57m

Seattle/Tacoma Intl

Sun 4/5

07:20-10:00

1 stop18h 40m

£461

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 7/5

10:50-16:59

1 stop14h 09m

Seattle/Tacoma Intl

Wed 14/5

07:20-06:30

1 stop15h 10m

£462

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 5/5

09:55-15:57

1 stop14h 02m

Seattle/Tacoma Intl

Wed 14/5

17:35-11:20

Nonstop9h 45m

£470

Flights are sorted by cheapest return flights first.

Deals found on 17/4

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 18 April 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 18 April 2025.

The most flights from GB0 to USWA are scheduled on a Monday (22 on average). You will have fewer flight options on Tuesday, 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 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 18 April 2025.
See what other customers who have flown with Delta, Alaska Airlines and KLM from United Kingdom to Washington have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

    £325 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 Icelandair, with prices starting from £403 and £455, 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

Browse thousands of different options on Cheapflights for your next trip

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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 18 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£8Average£858FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapest£330Average£629FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£391Average£619FlexibilityNo cancel feeOn-time77%
Search Air France flights
LufthansaCheapest£401Average£598FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£404Average£684FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£413Average£707FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£418Average£614FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£438Average£838FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest£451Average£825FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£457Average£721FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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