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Cheap flights from the United Kingdom to Washington from £264

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
4 feb — 11 feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Washington

Enter your travel dates to find the best prices.

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 5 januari 2026.

mån 4/515:40LGW - SEA
1 stop34h 15mIcelandair
fre 8/519:00SEA - LGW
1 stop11h 40mIcelandair
Deal found 4/1£398
tis 24/209:15LCY - SEA
2 stops21h 28mSWISS
tis 3/310:55SEA - LCY
2 stops18h 00mSWISS
Deal found 4/1£398
mån 12/112:05LHR - SEA
2 stops35h 56mUnited Airlines
mån 26/108:10SEA - LHR
2 stops39h 20mUnited Airlines
Deal found 3/1£398
mån 12/114:30LHR - SEA
Nonstop10h 05mDelta
mån 26/107:10SEA - LHR
1 stop15h 45mDelta
Deal found 3/1£399
tis 17/211:55LGW - SEA
1 stop13h 05mIcelandair
tis 24/214:35SEA - LGW
1 stop12h 20mIcelandair
Deal found 2/1£400
mån 7/909:15LGW - SEA
1 stop13h 15mSWISS
mån 21/913:45SEA - LGW
2 stops20h 05mSWISS
Deal found 4/1£400
tis 13/109:15LCY - SEA
2 stops19h 57mSWISS
ons 28/110:58SEA - LCY
2 stops41h 57mSWISS
Deal found 4/1£400
fre 20/307:40LHR - SEA
1 stop13h 40mMultiple Airlines
mån 13/420:00SEA - LHR
2 stops26h 30mMultiple Airlines
Deal found 3/1£400
mån 25/518:10LHR - SEA
1 stop29h 50mFinnair
mån 1/620:20SEA - LHR
Nonstop9h 25mFinnair
Deal found 3/1£401
mån 21/909:15LGW - SEA
2 stops19h 35mSWISS
mån 28/913:45SEA - LGW
2 stops20h 05mSWISS
Deal found 4/1£402
mån 23/309:30LHR - SEA
1 stop34h 40mUnited Airlines
tis 14/414:10SEA - LHR
1 stop14h 30mUnited Airlines
Deal found 3/1£402
tis 14/409:30LHR - SEA
2 stops17h 48mMultiple Airlines
ons 6/509:55SEA - LHR
2 stops16h 05mMultiple Airlines
Deal found 3/1£403

Find 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 5 januari 2026.

Round-trip from

£398

One-way from

£264

Popular in

July

Cheapest in

January

Average price

£472

Good round-trip deal

£484 or less

Good one-way deal

£458 or less
Icelandair
  • Icelandair
  • 4/5-8/5
  • 2 total stops
  • 45h 55m total
  • United Kingdom to Washington
Search Deals
27/4
  • 27/4
  • 3 total stops
  • 42h 19m total
  • United Kingdom to Washington
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from United Kingdom to Washington.
Search Deals
Price to beat on a one-way flight from United Kingdom to Washington.
Search Deals

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 5 januari 2026.
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

mån 16/2

12:20-14:45

Nonstop10h 25m

Seattle/Tacoma Intl

mån 23/2

11:20-10:00

1 stop14h 40m

£398

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

mån 16/2

12:20-14:45

Nonstop10h 25m

Seattle/Tacoma Intl

mån 23/2

16:55-10:30

Nonstop9h 35m

£398

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

ons 21/1

12:20-14:49

Nonstop10h 29m

Seattle/Tacoma Intl

tors 29/1

18:25-11:55

Nonstop9h 30m

£398

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

ons 20/5

07:25-16:59

1 stop17h 34m

Seattle/Tacoma Intl

fre 29/5

11:15-21:00

2 stops25h 45m

£399

LondonSeattle

LCY - SEA

LCYSEA

London City

mån 16/2

09:15-21:01

2 stops19h 46m

Seattle/Tacoma Intl

mån 23/2

12:32-17:05

2 stops20h 33m

£412

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

lör 31/1

06:30-11:50

1 stop13h 20m

Seattle/Tacoma Intl

ons 4/2

16:55-10:30

Nonstop9h 35m

£416

LondonSeattle

LCY - SEA

LCYSEA

London City

mån 16/2

17:50-11:40

1 stop25h 50m

Seattle/Tacoma Intl

mån 23/2

06:10-08:50

2 stops18h 40m

£420

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

ons 18/3

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

tis 14/4

19:00-14:40

1 stop11h 40m

£422

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

ons 18/3

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

ons 15/4

15:40-14:40

1 stop15h 00m

£422

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

tis 17/3

11:55-18:00

1 stop13h 05m

Seattle/Tacoma Intl

tors 16/4

19:00-14:40

1 stop11h 40m

£422

Flights are sorted by cheapest return flights first.

Deals found on 3/1

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, March is the cheapest month in which you can book a flight from United Kingdom to State of Washington (average of £302). Flying from United Kingdom to State of Washington in August is currently the most expensive (average of £461). 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 5 januari 2026.

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 5 januari 2026.

The most flights from GB0 to USWA are scheduled on a Saturday (21 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 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 5 januari 2026.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andAir France 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.
KLM
7.7
Good
1,434 reviews
Check prices

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,434 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Air France
7.4
Good
1,518 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Icelandair
7.1
Good
593 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,643 reviews
KLM
7.7
Good
1,434 reviews
Check prices

Food

7.2

Overall

7.7

Crew

8.4

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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?

    Delta, Virgin Atlantic, and United Airlines can get you from United Kingdom to State of Washington in just under 10h 25m. Your travel time can differ by up to 7h 09m. There are 4783 mi between United Kingdom and State of Washington. This flight may include one or multiple stops.

  • 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, March is the cheapest month in which you can book a flight from United Kingdom to State of Washington (average of £302). Flying from United Kingdom to State of Washington in August is currently the most expensive (average of £461). 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 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 5 januari 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£351Average£601FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£361Average£599FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£366Average£573FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£385Average£711FlexibilityNo cancel feeOn-time77%
Search Air France flights
KLMCheapest£396Average£630FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£416Average£767FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£419Average£496FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£421Average£645FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£426Average£571FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£430Average£641FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from United Kingdom to Washington via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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.

Can Cheapflights find flights from United Kingdom to Washington with no change fees?

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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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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