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Cheap flights from the United Kingdom to Washington from £285

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SEA
4 May — 11 May1
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 4 April 2026.

Mon 27/406:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
Mon 4/515:40
SEA
-
STN
2 stops19h 35m
Multiple Airlines
Deal found 30/3£458
Mon 13/408:30
STN
-
SEA
3 stops37h 49m
Multiple Airlines
Sun 26/415:40
SEA
-
STN
2 stops20h 15m
Multiple Airlines
Deal found 30/3£470
Wed 29/417:45
LHR
-
SEA
Nonstop10h 19m
Delta
Mon 4/513:30
SEA
-
LHR
1 stop12h 30m
Delta
Deal found 2/4£470
Mon 27/414:45
LHR
-
SEA
1 stop17h 51m
American Airlines
Mon 4/511:16
SEA
-
LHR
1 stop15h 14m
American Airlines
Deal found 2/4£472
Mon 27/412:25
LHR
-
SEA
1 stop16h 14m
Delta
Tue 5/515:35
SEA
-
LHR
1 stop13h 30m
Delta
Deal found 2/4£474
Mon 13/421:25
LHR
-
SEA
1 stop31h 15m
Icelandair
Sun 26/415:40
SEA
-
LHR
1 stop12h 15m
Icelandair
Deal found 30/3£480
Thu 23/410:25
LGW
-
SEA
1 stop13h 35m
Condor
Mon 27/418:10
SEA
-
LGW
1 stop16h 40m
Condor
Deal found 31/3£484
Mon 13/415:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Mon 20/415:40
SEA
-
LGW
1 stop15h 00m
Icelandair
Deal found 1/4£486
Sat 16/521:25
LHR
-
SEA
1 stop31h 15m
Icelandair
Sun 2/819:00
SEA
-
LHR
1 stop32h 55m
Icelandair
Deal found 31/3£486
Wed 2/915:40
LGW
-
SEA
1 stop13h 00m
Icelandair
Wed 30/919:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 1/4£486
Wed 2/913:05
LHR
-
SEA
1 stop15h 35m
Icelandair
Wed 30/915:40
SEA
-
LHR
1 stop12h 15m
Icelandair
Deal found 1/4£486
Mon 13/415:40
LGW
-
SEA
1 stop34h 15m
Icelandair
Sun 26/419:00
SEA
-
LGW
1 stop11h 40m
Icelandair
Deal found 2/4£487

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 4 April 2026.

Round-trip from

£458

One-way from

£285

Popular in

July

Cheapest in

February

Average price

£545

Good round-trip deal

£664 or less

Good one-way deal

£507 or less
27/4-4/5
  • 27/4-4/5
  • 5 total stops
  • 54h 45m total
  • United Kingdom to Washington
Search Deals
30/4
  • 30/4
  • 2 total stops
  • 42h 45m total
  • United Kingdom to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 4 April 2026.
Use the filters below to find and compare flights from the United Kingdom to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 14/5

09:25-17:10

1 stop15h 45m

Seattle/Tacoma Intl

Thu 21/5

19:10-23:25

1 stop20h 15m

£520

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Fri 5/6

15:40-20:40

1 stop13h 00m

Seattle/Tacoma Intl

Sat 18/7

19:00-14:35

1 stop11h 35m

£548

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 29/8

15:40-11:45

1 stop28h 05m

Seattle/Tacoma Intl

Sun 6/9

19:00-14:40

1 stop11h 40m

£549

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 30/5

15:40-11:45

1 stop28h 05m

Seattle/Tacoma Intl

Fri 5/6

19:00-14:40

1 stop11h 40m

£550

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 27/5

15:40-11:45

1 stop28h 05m

Seattle/Tacoma Intl

Mon 1/6

23:25-14:40

1 stop31h 15m

£550

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 30/5

15:40-11:45

1 stop28h 05m

Seattle/Tacoma Intl

Wed 3/6

23:25-14:40

1 stop31h 15m

£551

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 27/4

07:15-16:10

2 stops16h 55m

Seattle/Tacoma Intl

Mon 4/5

15:40-01:10

3 stops25h 30m

£558

ManchesterSeattle

MAN - SEA

MANSEA

Manchester

Sat 29/8

21:15-13:45

2 stops24h 30m

Seattle/Tacoma Intl

Sun 6/9

15:55-08:55

1 stop33h 00m

£567

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Fri 12/6

11:45-16:24

1 stop12h 39m

Seattle/Tacoma Intl

Mon 22/6

18:20-12:10

Nonstop9h 50m

£568

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 29/4

06:15-09:40

3 stops35h 25m

Seattle/Tacoma Intl

Tue 5/5

13:30-20:30

3 stops23h 00m

£573

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 £354). Flying from United Kingdom to State of Washington in August is currently the most expensive (average of £474). 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 4 April 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 4 April 2026.

The most flights from GB0 to USWA are scheduled on a Monday (15 on average). You will have fewer flight options on Sunday, 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 4 April 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
1,487 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,487 reviews
KLM
7.7
Good
1,487 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
685 reviews
KLM
7.7
Good
1,487 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Air France
7.4
Good
1,563 reviews
KLM
7.7
Good
1,487 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Icelandair
7.0
Good
630 reviews
KLM
7.7
Good
1,487 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,848 reviews
KLM
7.7
Good
1,487 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Crew

8.4

Comfort

7.6

Overall

7.7

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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?

    Icelandair, Scandinavian Airlines, and KLM can get you from United Kingdom to State of Washington in just under 12h 39m. Your travel time can differ by up to 11h 51m. 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, January is the cheapest month in which you can book a flight from United Kingdom to State of Washington (average of £354). Flying from United Kingdom to State of Washington in August is currently the most expensive (average of £474). 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 4 April 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£340Average£611FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£346Average£544FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£368Average£593FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£379Average£667FlexibilityNo cancel feeOn-time75%
Search KLM flights
IberiaCheapest£412Average£662FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£424Average£777FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£434Average£688FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£437Average£632FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air FranceCheapest£457Average£759FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£466Average£676FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

Can Cheapflights notify me if prices for flights from United Kingdom to Washington become cheaper?

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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