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$534+ Cheap flights from Gatwick (LGW) to Seattle (SEA)

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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Gatwick to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$647
(Bravofly)

One-way from

$534
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$903
From London Gatwick to Seattle/Tacoma Intl
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One-way flight from London Gatwick to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 15% potential increase in price ($132 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Gatwick to Seattle

Cheapest flights from Gatwick to Seattle
Explore the most affordable flight options available from Gatwick to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Bravofly deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/103:40 pmLGW - SEA
1 stop13h 00mIcelandair
Thu 7/2411:30 pmSEA - LGW
1 stop28h 15mIcelandair
Deal found 6/11$647
This deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1712:00 pmLGW - SEA
1 stop18h 49mDelta
Tue 6/2411:31 amSEA - LGW
1 stop14h 29mDelta
Deal found 6/10$678
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/810:40 amLGW - SEA
2 stops22h 03mAmerican Airlines
Thu 8/75:24 amSEA - LGW
2 stops18h 46mAmerican Airlines
Deal found 6/11$729
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/83:05 pmLGW - SEA
2 stops29h 19mMultiple Airlines
Wed 8/612:45 amSEA - LGW
2 stops23h 25mMultiple Airlines
Deal found 6/11$739
This JetBlue deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/912:10 pmLGW - SEA
1 stop17h 54mJetBlue
Wed 7/1611:43 amSEA - LGW
1 stop13h 52mJetBlue
Deal found 6/11$767
This Virgin Atlantic deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1912:00 pmLGW - SEA
2 stops19h 53mVirgin Atlantic
Wed 7/167:20 amSEA - LGW
2 stops18h 40mVirgin Atlantic
Deal found 6/11$841
This The Travel House deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:45 amLGW - SEA
2 stops33h 48mWestJet
Sat 10/117:05 amSEA - LGW
2 stops42h 20mWestJet
Deal found 6/10$890

Cheapflights Fare Finder

Customize your flight search to find flights from Gatwick to Seattle 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Seattle that are best for you.

Fly from

Gatwick

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 7/10

3:40 pm-8:40 pm

1 stop13h 00m

Seattle/Tacoma Intl

Thu 7/24

11:30 pm-11:45 am

1 stop28h 15m

$647

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 7/8

10:40 am-12:43 am

2 stops22h 03m

Seattle/Tacoma Intl

Thu 8/7

5:24 am-8:10 am

2 stops18h 46m

$729

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 7/8

3:05 pm-12:24 pm

2 stops29h 19m

Seattle/Tacoma Intl

Wed 8/6

12:45 am-8:10 am

2 stops23h 25m

$739

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 7/9

12:10 pm-10:04 pm

1 stop17h 54m

Seattle/Tacoma Intl

Wed 7/16

11:43 am-9:35 am

1 stop13h 52m

$767

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 7/8

10:25 am-10:30 pm

1 stop20h 05m

Seattle/Tacoma Intl

Thu 8/7

6:30 am-9:20 am

2 stops18h 50m

$825

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 10/2

10:45 am-12:33 pm

2 stops33h 48m

Seattle/Tacoma Intl

Sat 10/11

7:05 am-9:25 am

2 stops42h 20m

$890

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 7/2

2:00 pm-10:35 am

1 stop28h 35m

Seattle/Tacoma Intl

Wed 7/9

7:10 pm-10:20 pm

1 stop19h 10m

$900

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 8/10

12:00 pm-10:48 pm

1 stop18h 48m

Seattle/Tacoma Intl

Sun 8/24

9:45 pm-10:00 am

1 stop28h 15m

$905

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 6/23

12:40 pm-7:17 pm

2 stops38h 37m

$534

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 10/13

10:45 am-12:59 pm

2 stops34h 14m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 11 results
1
2

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 round-trip 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 London Gatwick Airport to Seattle

What is the cheapest month to book a flight from London Gatwick Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from London Gatwick Airport to Seattle (average of $238). Flying from London Gatwick Airport to Seattle in July is currently the most expensive (average of $391). 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.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated June 12, 2025.
See what other customers who have flown with Delta, Virgin Atlantic and JetBlue from London to Seattle have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.3
Good
2,925 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,848 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

  • What are the cheapest airlines flying from London Gatwick Airport to Seattle round-trip?

    Currently priced at $647, Icelandair will fly you from London Gatwick Airport to Seattle and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $678 and $729, respectively. Icelandair is 11% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from London Gatwick Airport to Seattle one-way?

    One-way options have recently been found by users for as low as $541 on WestJet. Other airlines that offer cheap prices include Icelandair from $641 and British Airways from $896 one-way.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from London Gatwick Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from London Gatwick Airport to Seattle (average of $238). Flying from London Gatwick Airport to Seattle in July is currently the most expensive (average of $391). 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

Traveling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Kent
Cle Elum
Centralia
Kirkland
Aberdeen
Renton
Shelton
Silverdale
Issaquah

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Gatwick to Seattle

Discover the top airline that operate flights from Gatwick to Seattle. 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$402Average$907FlexibilityNo cancel feeOn-time76%

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