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Cheap flights from Seattle to London Gatwick Airport from £229

SEA — LGW
9 Oct — 16 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Gatwick

Sun 20/915:55 -
2 stops19h 20m
Fri 2/1019:55 -
2 stops25h 50m
Deal found 5/9£558
Sun 27/919:00 -
3 stops35h 55m
Tue 6/1011:00 -
2 stops17h 40m
Deal found 6/9£559
Fri 2/1015:55 -
1 stop15h 00m
Mon 5/1020:10 -
2 stops25h 35m
Deal found 5/9£561
Fri 6/1114:35 -
3 stops34h 00m
Wed 25/1119:30 -
2 stops29h 30m
Deal found 8/9£561
Tue 20/1018:05 -
1 stop16h 45m
Tue 3/1110:25 -
1 stop13h 30m
Deal found 5/9£562
Tue 6/1019:00 -
1 stop11h 40m
Tue 13/1015:40 -
1 stop34h 15m
Deal found 6/9£563
Tue 8/1214:35 -
1 stop12h 20m
Sun 17/111:55 -
1 stop13h 05m
Deal found 4/9£565
Mon 12/1019:00 -
2 stops19h 30m
Tue 27/1011:55 -
1 stop13h 05m
Deal found 5/9£566
Sat 17/1019:00 -
1 stop11h 35m
Wed 4/1111:55 -
1 stop13h 05m
Deal found 4/9£567
Tue 22/919:00 -
1 stop11h 40m
Wed 30/915:40 -
1 stop34h 15m
Deal found 4/9£568
Fri 9/1015:40 -
2 stops18h 20m
Sun 18/1009:20 -
2 stops19h 20m
Deal found 6/9£569

Find flight deals from Seattle to Gatwick

Round-trip from

£558

One-way from

£229

Popular in

July

Cheapest in

November

Average price

£649
20/9-2/10
  • 20/9-2/10
  • 4 total stops
  • 45h 10m total
  • Seattle to London
Search Deals
13/10-31/12
  • 13/10-31/12
  • 3 total stops
  • 29h 40m total
  • Seattle to London
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£127 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sun 3/1

14:35-10:55

1 stop12h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£239

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 5/12

15:48-09:00

2 stops57h 12m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£256

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 28/12

15:25-15:45

1 stop16h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£267

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 11/11

15:25-15:45

1 stop16h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£280

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 3/11

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£280
Fastest return journey

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 20/10

13:30-09:25

1 stop11h 55m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£280

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 28/10

16:20-15:45

1 stop16h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£280

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 27/2

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£281

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 3/11

08:25-09:00

2 stops16h 35m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£283

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 14/11

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£317

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Gatwick

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

Cheapflights Insights

Everything you need to know about your flight from Seattle to London Gatwick Airport

How much does it cost for a return flight from Seattle to London Gatwick Airport?

Airfare is typical for this route at the moment.

Seattle to London Gatwick Airport flights typically cost between £428 and £709 in September.
The cheapest return price found within the last 5 days was £558 on Multiple Airlines (20 Sept–2 Oct).

Related info for your journey

  • What airport do you fly from for flights from Seattle to London Gatwick?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to London Gatwick. On average, Seattle/Tacoma Intl has 0 outbound flights to London Gatwick per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How long is the flight from Seattle to London Gatwick Airport?

    For as low as £586, Delta can have you in London Gatwick Airport from Seattle in 15h 40m. The distance from Seattle to London Gatwick Airport is about 4807 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Gatwick by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Watford
Southall
Kingston upon Thames
Dover
Ipswich

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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

When you search for this flight from Seattle to Gatwick, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Seattle to Gatwick by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Gatwick flexibly with Cheapflights today.

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

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

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