How long is the flight from Seattle to London Gatwick Airport?

For as low as £655, Delta can have you in London Gatwick Airport from Seattle in 16h 20m. The distance from Seattle to London Gatwick Airport is about 4807 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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.

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).

What is the cheapest time of day to fly from SEA to LGW?

When flying from Seattle to London Gatwick Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

£256+ Cheap Flights from Seattle to London Gatwick Airport

Cheap flight deals from Seattle to Gatwick

Enter your travel dates to find the best prices.

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Best

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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 4 October 2026.

Mon 16/1117:50 -

1 stop17h 35m

Mon 23/1110:25 -

1 stop13h 30m

Deal found 2/10£566

Thu 12/1117:50 -

1 stop13h 10m

Mon 16/1110:25 -

1 stop13h 30m

Deal found 1/10£568

Tue 3/1108:40 -

3 stops24h 10m

Sat 7/1118:40 -

3 stops34h 19m

Deal found 3/10£569

Tue 20/1018:05 -

1 stop16h 45m

Thu 3/1210:25 -

1 stop13h 30m

Deal found 1/10£569

Mon 2/1114:35 -

2 stops18h 20m

Mon 9/1121:00 -

3 stops28h 00m

Deal found 3/10£570

Sun 11/1017:40 -

1 stop17h 10m

Tue 3/1110:25 -

1 stop13h 30m

Deal found 2/10£572

Tue 6/1015:55 -

1 stop17h 30m

Fri 9/1007:05 -

1 stop14h 40m

Deal found 29/9£572

Fri 23/1018:00 -

1 stop16h 50m

Mon 2/1110:25 -

1 stop13h 30m

Deal found 30/9£573

Thu 3/1214:35 -

1 stop14h 45m

Tue 8/1208:00 -

1 stop17h 00m

Deal found 30/9£574

Thu 12/1114:35 -

1 stop12h 20m

Wed 18/1111:55 -

1 stop13h 05m

Deal found 30/9£575

Thu 3/1214:35 -

1 stop14h 45m

Mon 7/1207:40 -

1 stop17h 20m

Deal found 30/9£575

Find flight deals from Seattle to Gatwick

Round-trip from	£566
One-way from	£256
Popular in	July
Cheapest in	December
Average price	£580

Condor
16/11-23/11
2 total stops
31h 05m total
Seattle to London

Search Deals

9/10-31/12
3 total stops
55h 45m total
Seattle to London

Search Deals

Highest demand for flights based on searches. 25% potential increase in price (£143 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to London Gatwick Airport that are best for you.

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Return

Price

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SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 10/11

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£285

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 2/11

15:25-15:45

1 stop16h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£286

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 27/2

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£287

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 26/2

15:30-15:45

1 stop16h 15m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£287

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 10/11

08:30-15:45

2 stops23h 15m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£289

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 14/11

14:30-17:50

2 stops43h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£299

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 13/11

15:25-15:45

1 stop16h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£324

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Thu 29/10

17:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£324

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Wed 28/10

16:20-15:45

1 stop16h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£343

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Tue 8/12

19:05-22:35

1 stop19h 30m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£426

Flights are sorted by cheapest return flights first.

Deals found on 2/10

Showing 1-10 of 21 resultsSorted by cheapest first

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.

SEA-LGW

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.

Related info for your journey

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.
How long is the flight from Seattle to London Gatwick Airport?
For as low as £655, Delta can have you in London Gatwick Airport from Seattle in 16h 20m. The distance from Seattle to London Gatwick Airport is about 4807 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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.

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Can Cheapflights notify me if prices for flights from Seattle to Gatwick become cheaper?

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Cheap flights from Seattle to London Gatwick Airport from £256

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 4 October 2026.

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 4 October 2026.

Best flights from Seattle to GatwickDiscover carefully curated flight deals from Seattle to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 October 2026.

Discover carefully curated flight deals from Seattle to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 October 2026.

Last-minute flights from Seattle to GatwickDiscover last-minute flight deals from Seattle to Gatwick. Data last updated 4 October 2026 and is based on user searches.

Discover last-minute flight deals from Seattle to Gatwick. Data last updated 4 October 2026 and is based on user searches.

One-way flights from Seattle to GatwickSearch for one-way flight options from Seattle to Gatwick. Find affordable one-way fares based on user searches. Data last updated 4 October 2026.

Search for one-way flight options from Seattle to Gatwick. Find affordable one-way fares based on user searches. Data last updated 4 October 2026.

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Best time to book a flight from Seattle to Gatwick

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Related info for your journey

What airport do you fly from for flights from Seattle to London Gatwick?

How long is the flight from Seattle to London Gatwick Airport?

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

How can I find direct flights from Seattle to Gatwick?

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

Travelling to a place near London Gatwick Airport?

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Other flights to Gatwick

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Can Cheapflights notify me if prices for flights from Seattle to Gatwick become cheaper?

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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 4 October 2026.

Best flights from Seattle to Gatwick
Discover carefully curated flight deals from Seattle to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 4 October 2026.

Last-minute flights from Seattle to Gatwick
Discover last-minute flight deals from Seattle to Gatwick. Data last updated 4 October 2026 and is based on user searches.

One-way flights from Seattle to Gatwick
Search for one-way flight options from Seattle to Gatwick. Find affordable one-way fares based on user searches. Data last updated 4 October 2026.