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Cheap flights from Seattle to London Gatwick Airport from £227

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LGW
26 Feb — 5 Mar1
1 adult

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 21 February 2025.

Round-trip from

£463

One-way from

£227

Popular in

June

Cheapest in

January

Average price

£482
Icelandair
  • Icelandair
  • 1/4-29/4
  • 2 total stops
  • 25h 00m total
  • Seattle to London
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17/3
  • 17/3
  • 1 total stop
  • 17h 20m total
  • Seattle to London
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£200 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Seattle to Gatwick

Cheapest flights from Seattle to Gatwick
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 21 February 2025.

Tue 1/415:45SEA - LGW
1 stop12h 00mIcelandair
Tue 29/415:40LGW - SEA
1 stop13h 00mIcelandair
Deal found 21/2£463
Wed 30/412:30SEA - LGW
2 stops33h 50mMultiple Airlines
Mon 5/518:50LGW - SEA
2 stops33h 38mMultiple Airlines
Deal found 20/2£478
Wed 1/1005:52SEA - LGW
2 stops18h 18mAmerican Airlines
Wed 15/1010:40LGW - SEA
2 stops20h 29mAmerican Airlines
Deal found 20/2£534
Tue 1/415:24SEA - LGW
2 stops18h 26mSWISS
Tue 15/418:35LGW - SEA
2 stops36h 08mSWISS
Deal found 20/2£535
Thu 27/219:00SEA - LGW
1 stop30h 20mTurkish Airlines
Tue 4/306:00LGW - SEA
1 stop19h 05mTurkish Airlines
Deal found 20/2£549

Find flights from Seattle to Gatwick within your budget

Customise your flight search to find flights from Seattle to Gatwick 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 858,174 searches. Data last updated 21 February 2025.

Fly from

Seattle

Fly to

Gatwick

Route

Depart

Return

Price

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 1/4

15:45-11:45

1 stop12h 00m

London Gatwick

Tue 29/4

15:40-20:40

1 stop13h 00m

£463

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Wed 30/4

12:30-06:20

2 stops33h 50m

London Gatwick

Mon 5/5

18:50-20:28

2 stops33h 38m

£478

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 1/4

15:24-17:50

2 stops18h 26m

London Gatwick

Tue 15/4

18:35-22:43

2 stops36h 08m

£535

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 21/4

19:10-09:55

1 stop30h 45m

London Gatwick

Fri 9/5

05:30-17:15

1 stop19h 45m

£551

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 17/3

07:55-08:15

1 stop17h 20m

£227

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 29/4

15:45-14:40

1 stop14h 55m

£229

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 17/6

07:05-09:25

2 stops42h 20m

£349

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 1/4

12:45-17:50

2 stops21h 05m

£349

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 3/3

07:00-18:50

2 stops27h 50m

£445

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 17/6

11:30-09:35

1 stop14h 05m

£463

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 13 results
1
2

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.
Estimated return 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.

Travel insights for flights from Seattle to Gatwick

Get recent, data-driven insights about flights from Seattle to Gatwick including ideal travel times, pricing trends, and more.

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

Currently, April is the cheapest month in which you can book a flight from Seattle to London Gatwick Airport (average of £102). Flying from Seattle to London Gatwick Airport in July is currently the most expensive (average of £142). 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 Gatwick by month

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

In terms of precipitation, rainfall in London Gatwick Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Gatwick Airport when rainfall is around 40.0 mm.

Temperature in Gatwick by month

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

If weather is an important factor for your trip to London Gatwick Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Gatwick

Get insights into the airlines that provide service to Gatwick. 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 Gatwick. Reviews last updated 21 February 2025.
Get a feel of what it's like to fly with SWISS, JetBlue and Turkish Airlines from Seattle to London by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,568 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

6.7

Food

7.0

Crew

8.2

Boarding

7.6

Reviews

1 / 20

6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

SWISS
7.5
Good
1,568 reviews
SWISS
7.5
Good
1,568 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

6.7

Food

7.0

Crew

8.2

Boarding

7.6

Reviews

1 / 20

6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

JetBlue
7.4
Good
3,069 reviews
SWISS
7.5
Good
1,568 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

6.7

Food

7.0

Crew

8.2

Boarding

7.6

Reviews

1 / 20

6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

Turkish Airlines
7.3
Good
3,834 reviews
SWISS
7.5
Good
1,568 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

6.7

Food

7.0

Crew

8.2

Boarding

7.6

Reviews

1 / 20

6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

WestJet
7.2
Good
2,800 reviews
SWISS
7.5
Good
1,568 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

6.7

Food

7.0

Crew

8.2

Boarding

7.6

Reviews

1 / 20

6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

Ethiopian Air
7.2
Good
775 reviews
SWISS
7.5
Good
1,568 reviews
Check prices

Comfort

7.3

Overall

7.5

Entertainment

6.7

Food

7.0

Crew

8.2

Boarding

7.6

Reviews

1 / 20

6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Gatwick. 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 from for flights from Seattle to London Gatwick?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to London Gatwick. On average, Seattle/Tacoma Intl has 0 outbound flights to London Gatwick per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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

    Cheapflights users have booked flights from Seattle to London Gatwick Airport round-trip from £463. Other airlines that can offer you cheap pricing are SWISS, from £535, and Turkish Airlines, from £551. These flights start at 24% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £229. WestJet flights start at £349 while deals on SWISS start at £349 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Gatwick 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 Seattle to London Gatwick Airport?

    Currently, April is the cheapest month in which you can book a flight from Seattle to London Gatwick Airport (average of £102). Flying from Seattle to London Gatwick Airport in July is currently the most expensive (average of £142). 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

Travelling to a place near Seattle?

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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.

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