SEA - LGW

C$ 367 Find Cheap Flights from Seattle to London Gatwick Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to London departing on 28/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London Gatwick Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to London, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Gatwick (SEA-LGW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Gatwick that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to London

Fri, 13 Mar - Sat, 28 Mar
Icelandair Logo
3:35 p.m. - 10:55 a.m.SEA-LGW
12h 20m1 stop
Icelandair Logo
2:40 p.m. - 9:10 p.m.LGW-SEA
13h 30m1 stop
C$ 714Icelandair
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Wed, 12 Nov - Mon, 17 Nov
Icelandair Logo
2:35 p.m. - 10:55 a.m.SEA-LGW
12h 20m1 stop
Icelandair Logo
11:55 a.m. - 5:00 p.m.LGW-SEA
13h 05m1 stop
C$ 717Icelandair
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Tue, 7 Oct - Thu, 16 Oct
Icelandair Logo
7:00 p.m. - 2:40 p.m.SEA-LGW
11h 40m1 stop
Icelandair Logo
3:40 p.m. - 8:40 p.m.LGW-SEA
13h 00m1 stop
C$ 718Icelandair
Find Deal
Thu, 9 Oct - Tue, 14 Oct
Icelandair Logo
7:00 p.m. - 2:40 p.m.SEA-LGW
11h 40m1 stop
Icelandair Logo
3:40 p.m. - 5:50 p.m.LGW-SEA
34h 10m1 stop
C$ 720Icelandair
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Mon, 29 Sep - Fri, 31 Oct
Icelandair Logo
7:00 p.m. - 2:35 p.m.SEA-LGW
11h 35m1 stop
Icelandair Logo
11:55 a.m. - 6:00 p.m.LGW-SEA
13h 05m1 stop
C$ 727Icelandair
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Mon, 27 Oct - Wed, 19 Nov
Logo
11:07 a.m. - 6:00 a.m.SEA-LGW
35h 53m1 stop
Logo
1:00 p.m. - 10:11 p.m.LGW-SEA
17h 11m1 stop
C$ 831
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Sun, 9 Nov - Wed, 19 Nov
Logo
2:40 p.m. - 6:00 a.m.SEA-LGW
31h 20m1 stop
Logo
1:00 p.m. - 10:11 p.m.LGW-SEA
17h 11m1 stop
C$ 844
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Sun, 9 Nov - Sat, 15 Nov
SWISS Logo
2:40 p.m. - 5:50 p.m.SEA-LGW
19h 10m2 stops
SWISS Logo
6:40 p.m. - 8:51 p.m.LGW-SEA
34h 11m2 stops
C$ 1,038SWISS
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Thu, 9 Oct - Fri, 17 Oct
Turkish Airlines Logo
7:10 p.m. - 4:15 p.m.SEA-LGW
37h 05m1 stop
Turkish Airlines Logo
5:15 p.m. - 10:35 a.m.LGW-SEA
25h 20m1 stop
C$ 1,056Turkish Airlines
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Mon, 29 Sep - Tue, 28 Oct
Turkish Airlines Logo
7:10 p.m. - 1:00 p.m.SEA-LGW
33h 50m1 stop
Turkish Airlines Logo
5:05 p.m. - 6:05 p.m.LGW-SEA
32h 00m1 stop
C$ 1,084Turkish Airlines
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Everything you should know

When to travel
January
Cheapest • 18% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
C$ 714
Overall average: C$ 807
Icelandair
Fri 13/3Sat 28/3
SEA - LGW • 1 stop
Cheapest one-way flights
C$ 367
Typical prices: C$ 281-536
Multiple Airlines
Tue 28/10
SEA - LGW • 1 stop
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to London!
Booking Insights

KAYAK's insights & trends for Seattle to London flights

Get data-powered insights and trends into flights from Seattle to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to London Gatwick Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to London Gatwick Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to London Gatwick Airport is January, where tickets cost C$ 771 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is C$ 1,217 and C$ 1,045 respectively.

Find deals

Good to know

Low seasonMarch
Cheapest flightC$ 367
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 17% lower on average.
Flight from Seattle to London Gatwick Airport

When to book flights from Seattle to London

Are your dates flexible? Find out the best times to travel from Seattle to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Seattle to London Gatwick Airport flights

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

    In the last 3 days, the lowest price for a flight from Seattle to London Gatwick Airport was C$ 265 for a one-way ticket and C$ 516 for a round-trip.

  • Which aircraft models fly most regularly from Seattle to London Gatwick Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to London Gatwick Airport?

    Star Alliance is the only airline alliance operating flights between Seattle and London Gatwick Airport.

  • How does KAYAK find such low prices on flights from Seattle to London Gatwick Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to London Gatwick Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to London Gatwick Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Gatwick Airport from Seattle is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to London Gatwick Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Gatwick Airport with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to London Gatwick Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Gatwick Airport from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Seattle to London

Information on your arrival and departure airports

Seattle (SEA)
Gatwick (LGW)

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