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Cheap flights from England to Seattle from £306

LHR — SEA
7 Oct — 14 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from England to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from England to Seattle

Wed 23/912:30 -
1 stop15h 57m
Tue 6/1010:42 -
1 stop13h 43m
Deal found 3/9£432
Sat 17/1006:20 -
1 stop19h 35m
Sat 24/1019:10 -
1 stop11h 20m
Deal found 2/9£465
Thu 12/1111:20 -
1 stop13h 40m
Mon 16/1114:35 -
1 stop11h 45m
Deal found 5/9£468
Tue 20/1014:15 -
1 stop14h 25m
Sat 31/1015:35 -
1 stop11h 45m
Deal found 3/9£475
Tue 15/915:00 -
1 stop16h 20m
Tue 29/913:30 -
1 stop24h 50m
Deal found 2/9£480
Wed 4/1107:00 -
1 stop17h 50m
Wed 11/1118:55 -
1 stop17h 05m
Deal found 2/9£480
Thu 29/1011:20 -
1 stop13h 40m
Mon 2/1114:35 -
1 stop11h 45m
Deal found 5/9£487
Fri 18/1213:25 -
2 stops36h 57m
Sun 27/1210:10 -
1 stop17h 40m
Deal found 5/9£491
Sat 31/1007:10 -
1 stop17h 55m
Sat 7/1118:55 -
1 stop15h 20m
Deal found 5/9£493
Sun 20/1216:20 -
1 stop36h 42m
Sun 27/1210:10 -
1 stop17h 40m
Deal found 6/9£493
Sun 20/1210:00 -
1 stop17h 16m
Mon 28/1207:02 -
1 stop16h 38m
Deal found 3/9£494
Thu 22/1010:25 -
1 stop15h 22m
Mon 2/1115:25 -
1 stop16h 20m
Deal found 5/9£495

Find flight deals from England to Seattle

Round-trip from

£432

One-way from

£305

Popular in

August

Cheapest in

February

Average price

£544

Good round-trip deal

£533 or less

Good one-way deal

£439 or less
United Airlines
  • United Airlines
  • 23/9-6/10
  • 2 total stops
  • 29h 40m total
  • England to Seattle
Search Deals
23/11-31/12
  • 23/11-31/12
  • 2 total stops
  • 58h 55m total
  • England to Seattle
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£27 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from England to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from England to Seattle/Tacoma Intl.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from England to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Wed 18/11

10:00-15:14

1 stop13h 14m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£378

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Thu 10/12

10:00-08:45

2 stops30h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£379

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Tue 27/10

08:20-19:44

1 stop18h 24m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£379

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Sun 1/11

07:30-01:35

2 stops25h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£379

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Mon 1/3

06:30-17:27

2 stops18h 57m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£381

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Wed 25/11

10:00-22:03

2 stops20h 03m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£382

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 15/12

10:00-23:10

2 stops21h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£382

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Sat 14/11

10:00-23:00

2 stops21h 00m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£383

LondonSeattle

LCY London City - SEA Seattle/Tacoma Intl

LCYSEA

London City

Sat 26/12

10:00-11:50

1 stop33h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£383
Fastest return journey

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Sun 6/12

14:45-16:50

Nonstop10h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£387

Flights are sorted by cheapest return flights first.

Deals found on 3/9

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from England to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from England with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from England to Seattle

What is the cheapest month to book a flight from England to Seattle?

Currently, February is the cheapest month in which you can book a flight from England to Seattle (average of £495). Flying from England to Seattle in July is currently the most expensive (average of £645). 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 ENG to SEA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from England to Seattle as you normally would.

Weekly flight availability from England to Seattle

The most flights from GBENG to SEA are scheduled on a Tuesday (24 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (23 on average).

How much does it cost for a return flight from England to Seattle?

Airfare is below average for this route at the moment.
England to Seattle flights typically cost between £493 and £647 in December.
The cheapest return price found within the last 5 days was £491 on Air Canada (18 Dec–27 Dec).

How far ahead should I book a flight from England to Seattle?

Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from England to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

  • What airport do you fly into for flights to Seattle from England?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from England to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How long is the flight from England to Seattle?

    United Airlines, SWISS, and British Airways can get you from England to Seattle in just under 16h 25m. Your travel time can differ by up to 52m. Airlines will cover a distance of 4622 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from England to Seattle one-way?

    The cheapet airlines for a one-way flight from England to Seattle are British Airways (£313), Icelandair (£337), and Virgin Atlantic (£364).

  • What are the most popular routes from England to Seattle?

    The most popular route from England to Seattle is London Heathrow - Seattle/Tacoma Intl. You may also consider London Gatwick - Seattle/Tacoma Intl or London Stansted - Seattle/Tacoma Intl.

  • What are the most reliable airlines from England to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from England to Seattle on time: SAUDIA (79%), Scandinavian Airlines (78%), KLM (75%).

  • What are the cheapest flights from England to Seattle?

    On average you can expect to pay £1,820 for a flight from England to Seattle. The cheapest flight overall is £314 while the most popular route, (London Heathrow - Seattle/Tacoma Intl) is currently priced at £319.

  • Can I find deals for flights from England to Seattle that include hotel bookings?

    Yes. In addition to deals on England to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from England to Seattle?

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

  • Can I find deals for business class flights from England to Seattle?

    Yes. Cheapflights offers flight deals from England to Seattle 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 England to Seattle?

    Currently, February is the cheapest month in which you can book a flight from England to Seattle (average of £495). Flying from England to Seattle in July is currently the most expensive (average of £645). 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from England to Seattle

AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£332Average£500FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£333Average£550FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£360Average£605FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£367Average£577FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£388Average£701FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£416Average£683FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£430Average£669FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£436Average£616FlexibilityNo cancel feeOn-time77%
Search Air France flights
DeltaCheapest£438Average£653FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Scandinavian AirlinesCheapest£458Average£693FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from England to Seattle?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from England today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from England to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from England to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from England to Seattle with no change fees?

Certainly. Search results for flights to Seattle from England shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from England to Seattle become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from England today and book when prices fit your budget.

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