SEA - LGW

$413 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 Gatwick departing on 6/6. 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, 0 bags

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$636
Typical prices: $868-$630
Multiple Airlines
Mon 4/20Mon 4/27
SEA - LGW • 3 stops
Cheapest one-way
$413
Typical prices: $613-$749
Multiple Airlines
Sat 6/6
SEA - LGW • 3 stops
Top airlines
Condor
Cheapest • from $668 (round-trip)
Icelandair
Best reviews • 7.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Seattle and Gatwick. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Reykjavik (KEF)
Cheapest • Avg $783 (round-trip)
Reykjavik (KEF)
Shortest trip • 12h 27m (one-way)
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 20% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Gatwick!
Flight Deals
Booking Insights
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 Gatwick

Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
3:40 pm - 8:40 am
SEA
-
LGW
33h 00m
3 stops
Multiple Airlines Logo
8:45 pm - 8:40 pm
LGW
-
SEA
31h 55m
3 stops
$636Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
3:40 pm - 7:15 pm
SEA
-
LGW
19h 35m
2 stops
Multiple Airlines Logo
8:45 pm - 8:40 pm
LGW
-
SEA
31h 55m
3 stops
$639Multiple Airlines
Mon, Apr 27 - Tue, May 12
Multiple Airlines Logo
3:40 pm - 7:15 pm
SEA
-
LGW
19h 35m
2 stops
Multiple Airlines Logo
9:35 pm - 10:05 am
LGW
-
SEA
44h 30m
3 stops
$645Multiple Airlines
Mon, Apr 13 - Tue, Apr 21
Multiple Airlines Logo
3:40 pm - 8:05 am
SEA
-
LGW
32h 25m
3 stops
Multiple Airlines Logo
9:20 am - 8:40 pm
LGW
-
SEA
19h 20m
2 stops
$655Multiple Airlines
Sun, Apr 26 - Tue, May 12
Multiple Airlines Logo
3:40 pm - 10:40 pm
SEA
-
LGW
23h 00m
2 stops
Multiple Airlines Logo
10:00 am - 8:40 pm
LGW
-
SEA
18h 40m
2 stops
$657Multiple Airlines
Sun, Apr 26 - Tue, May 12
Multiple Airlines Logo
3:40 pm - 7:15 pm
SEA
-
LGW
19h 35m
2 stops
Multiple Airlines Logo
9:35 pm - 10:05 am
LGW
-
SEA
44h 30m
3 stops
$660Multiple Airlines
Sun, Apr 26 - Tue, May 12
Multiple Airlines Logo
3:40 pm - 7:15 pm
SEA
-
LGW
19h 35m
2 stops
Multiple Airlines Logo
9:35 pm - 10:05 am
LGW
-
SEA
44h 30m
3 stops
$666Multiple Airlines
Sun, Apr 19 - Tue, Apr 28
Condor Logo
5:40 pm - 2:40 pm
SEA
-
LGW
13h 00m
1 stop
Condor Logo
10:20 am - 3:40 pm
LGW
-
SEA
13h 20m
1 stop
$668Condor
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
7:00 pm - 6:25 pm
SEA
-
LGW
15h 25m
2 stops
Multiple Airlines Logo
6:05 pm - 5:55 pm
LGW
-
SEA
31h 50m
2 stops
$669Multiple Airlines
Sun, Apr 26 - Tue, May 12
Condor Logo
5:40 pm - 6:50 pm
SEA
-
LGW
17h 10m
1 stop
Condor Logo
10:20 am - 3:40 pm
LGW
-
SEA
13h 20m
1 stop
$670Condor
Booking Insights

KAYAK's insights & trends for Seattle to Gatwick flights

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

How much is a round-trip flight from Seattle to London Gatwick Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to London Gatwick Airport departing in April.

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 November, where tickets cost $519 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $848 and $738 respectively.

Find deals

Good to know

Low seasonMarch
Cheapest flight$413
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Seattle to London Gatwick Airport

When to book flights from Seattle to Gatwick

Are your dates flexible? Find out the best times to travel from Seattle to Gatwick 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 $413 for a one-way ticket and $645 for a round-trip.

  • Do I need a passport to fly between Seattle and London Gatwick Airport?

    Yes, you’ll need a passport to travel to London Gatwick Airport from Seattle.

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

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

  • 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 travelers 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. Booking your flights between Seattle and LGW can sometimes prove cheaper using this method.

  • 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.

Reviews of the top airline flying from Seattle to Gatwick

 
See real verified KAYAK customer reviews for airlines flying from Seattle to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Gatwick? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
IcelandairOverall score based on 628 reviews
8.0Crew
7.2Boarding
6.1Food
6.9Entertainment
6.9Comfort
Airline reviews

The most uncomfortable seat i’ve ever had on a flight

2.0 MediocreAidan, Mar 2026
KEF - DEN
Read more Icelandair reviews

The most uncomfortable seat i’ve ever had on a flight

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

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

Information on your arrival and departure airports

Seattle (SEA)
Gatwick (LGW)