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Cheap flights from London Gatwick Airport to Seattle from £384

LGW — SEA
5 Dec — 12 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Seattle

Sun 22/1110:00 -
1 stop13h 14m
Thu 3/1216:05 -
1 stop15h 40m
Deal found 2/11£405
Sun 22/1110:00 -
1 stop13h 14m
Thu 3/1216:05 -
1 stop15h 40m
Deal found 1/11£407
Wed 25/1110:00 -
1 stop13h 14m
Mon 7/1215:25 -
1 stop16h 20m
Deal found 1/11£411
Sun 22/1108:40 -
2 stops22h 27m
Thu 3/1215:20 -
2 stops32h 50m
Deal found 2/11£415
Wed 2/1218:40 -
2 stops37h 04m
Wed 9/1215:20 -
2 stops18h 30m
Deal found 2/11£416
Fri 20/1109:00 -
2 stops46h 07m
Fri 27/1107:45 -
2 stops26h 05m
Deal found 31/10£423
Sun 8/1110:00 -
1 stop13h 14m
Sun 22/1115:25 -
1 stop16h 20m
Deal found 1/11£424
Fri 13/1110:00 -
1 stop13h 14m
Sun 29/1115:25 -
1 stop33h 35m
Deal found 2/11£425
Wed 18/1110:00 -
2 stops21h 00m
Tue 1/1216:05 -
1 stop15h 40m
Deal found 1/11£428

Find flight deals from Gatwick to Seattle

Round-trip from

£405

One-way from

£384

Popular in

October

Cheapest in

January

Average price

£465
Virgin Atlantic
  • Virgin Atlantic
  • 22/11-3/12
  • 2 total stops
  • 28h 54m total
  • London to Seattle
Search Deals
Air France
  • Air France
  • 27/1-31/12
  • 1 total stop
  • 13h 13m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease (£66 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Gatwick Airport 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 20/1

18:40-23:15

2 stops36h 35m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£421

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 20/4

09:25-22:29

2 stops21h 04m

Seattle/Tacoma Intl

Tue 4/5

07:00-08:25

2 stops17h 25m

£433

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Sun 28/3

15:40-17:55

1 stop34h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£479
Fastest return journey

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 22/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£629

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Sun 15/11

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£652

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Fri 11/12

10:00-23:09

2 stops21h 09m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£708

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Tue 5/1

06:30-19:38

2 stops45h 08m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£753

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Fri 27/11

06:30-17:10

1 stop18h 40m

Seattle/Tacoma Intl

Sat 5/12

10:48-09:10

2 stops38h 22m

£765

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Wed 16/12

11:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Fri 26/3

19:00-13:40

1 stop11h 40m

£776

LondonSeattle

LGW London Gatwick - SEA Seattle/Tacoma Intl

LGWSEA

London Gatwick

Mon 26/4

10:00-15:45

1 stop13h 45m

Seattle/Tacoma Intl

Wed 5/5

06:00-08:55

2 stops18h 55m

£790

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Gatwick to Seattle

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

Cheapflights Insights

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

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

Airfare is typical for this route at the moment.

London Gatwick Airport to Seattle flights typically cost between £336 and £520 in November.
The cheapest return price found within the last 5 days was £405 on Virgin Atlantic (22 Nov–3 Dec).

Reviews of airlines servicing Seattle

Get a feel of what it's like to fly with Icelandair from London Gatwick Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
6.9
Okay
767 reviews
Check prices

Overall

6.9

Comfort

6.9

Boarding

7.2

Entertainment

6.9

Food

6.1

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Victoria,Sept 2026

KEF - EWR

Icelandair was excellent. Kayak business not so much. As mentioned in our comment through pilot, there were hidden fees when we bought the tickets.
Icelandair
6.9
Okay
767 reviews
Icelandair
6.9
Okay
767 reviews
Check prices

Overall

6.9

Comfort

6.9

Boarding

7.2

Entertainment

6.9

Food

6.1

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Victoria,Sept 2026

KEF - EWR

Icelandair was excellent. Kayak business not so much. As mentioned in our comment through pilot, there were hidden fees when we bought the tickets.

Related info for your journey

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

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from London Gatwick to Seattle. 1 airline have flights to Seattle/Tacoma Intl from London Gatwick on a regular basis. Booking flights from London Gatwick to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from London Gatwick per day.

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

    A quick flight from London Gatwick Airport to Seattle can take about 13h 05m. SWISS provides one of the quickest options available for as low as £776. London Gatwick Airport and Seattle are separated by a distance of 4807 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from London Gatwick Airport to Seattle round-trip?

    Flying on Icelandair is currently your cheapest option to Seattle, with prices starting at £393. Icelandair is priced at 41% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Gatwick 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.

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 airline flying from Gatwick to Seattle

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£393Average£541FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

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