Cheap flights from Seattle to London Gatwick Airport from £192
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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Seattle to Gatwick
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Gatwick (LGW). 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 29 August 2025.
Round-trip from | £371 |
---|---|
One-way from | £192 |
Popular in | June |
Cheapest in | January |
Average price | £498 |
Find flight deals from Seattle to Gatwick
Cheapest flights from Seattle to GatwickExplore the most affordable flight options available from Seattle to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Explore the most affordable flight options available from Seattle to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Seattle to London Gatwick Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Wed 24/9
19:00-14:40
1 stop11h 40m
London Gatwick
Wed 15/10
15:40-17:50
1 stop34h 10m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Wed 10/9
19:00-14:40
1 stop11h 40m
London Gatwick
Thu 25/9
15:40-20:40
1 stop13h 00m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Thu 25/9
19:00-14:40
1 stop11h 40m
London Gatwick
Mon 29/9
15:40-20:40
1 stop13h 00m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Mon 22/9
19:00-14:35
1 stop11h 35m
London Gatwick
Fri 26/9
15:40-20:40
1 stop13h 00m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Thu 13/11
14:35-10:55
1 stop12h 20m
London Gatwick
Mon 17/11
11:55-17:00
1 stop13h 05m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Thu 16/10
19:00-14:40
1 stop11h 40m
London Gatwick
Mon 3/11
11:55-17:00
1 stop13h 05m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Thu 23/10
19:00-14:40
1 stop11h 40m
London Gatwick
Sun 2/11
11:55-17:00
1 stop13h 05m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Fri 12/12
14:35-10:55
1 stop12h 20m
London Gatwick
Fri 9/1
11:55-17:00
1 stop13h 05m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Thu 5/2
14:35-10:55
1 stop12h 20m
London Gatwick
Wed 18/2
11:55-17:00
1 stop13h 05m
SeattleLondon
SEA - LGW
SEALGW
Seattle/Tacoma Intl
Sat 15/11
14:35-10:55
1 stop12h 20m
London Gatwick
Sun 23/11
11:55-17:00
1 stop13h 05m
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.
Cheapflights Insights
Everything you need to know about your flight from Seattle to London Gatwick Airport
Related info for your journey
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Alternative routes for Seattle to Gatwick
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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.