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

For as low as £748, Turkish Airlines can have you in Seattle from London Stansted Airport in 38h 15m. The distance from London Stansted Airport to Seattle is about 4778 mi.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Stansted Airport to Seattle as you normally would.

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

Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from London Stansted. On average, Seattle/Tacoma Intl has 0 inbound flights from London Stansted 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 Stansted to Seattle that include hotel bookings?

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

How can I find direct flights from Stansted to Seattle?

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

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

Yes. Cheapflights offers flight deals from Stansted to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£382+ Cheap Flights from London Stansted Airport to Seattle

Cheap flight deals from Stansted to Seattle

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Stansted to Seattle
Explore the most affordable flight options available from Stansted to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Wed 4/1106:10 -

2 stops18h 50m

Tue 17/1114:35 -

2 stops21h 40m

Deal found 17/9£498

Wed 25/1118:50 -

2 stops30h 10m

Sun 6/1214:35 -

2 stops18h 20m

Deal found 13/9£503

Thu 15/1007:00 -

2 stops21h 40m

Mon 19/1015:40 -

2 stops24h 40m

Deal found 17/9£538

Thu 22/1008:55 -

2 stops19h 45m

Thu 29/1015:35 -

2 stops23h 15m

Deal found 16/9£541

Thu 1/1022:05 -

1 stop23h 40m

Sun 11/1015:55 -

2 stops46h 30m

Deal found 14/9£543

Thu 19/1106:25 -

2 stops17h 30m

Sun 29/1115:00 -

2 stops19h 15m

Deal found 15/9£545

Thu 1/1022:05 -

1 stop23h 40m

Fri 9/1015:55 -

2 stops49h 00m

Deal found 14/9£546

Thu 1/1022:05 -

1 stop23h 40m

Sat 10/1015:55 -

2 stops37h 05m

Deal found 14/9£547

Fri 9/1006:20 -

1 stop15h 25m

Tue 13/1019:00 -

2 stops27h 50m

Deal found 14/9£549

Fri 9/1006:20 -

1 stop15h 25m

Sat 17/1019:00 -

2 stops51h 45m

Deal found 14/9£550

Sun 1/1113:40 -

2 stops35h 20m

Sun 8/1114:35 -

2 stops23h 25m

Deal found 17/9£554

Sat 10/1021:40 -

1 stop24h 05m

Sat 17/1019:00 -

2 stops44h 20m

Deal found 14/9£556

Find flight deals from Stansted to Seattle

Round-trip from	£498
One-way from	£382
Popular in	August
Cheapest in	February
Average price	£553

4/11-17/11
4 total stops
40h 30m total
London to Seattle

Search Deals

7/10-31/12
3 total stops
59h 05m total
London to Seattle

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£28 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 27/9

06:35-18:45

2 stops20h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£474

Fastest return journey

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 17/11

08:15-17:00

2 stops16h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£488

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 23/9

22:45-17:10

1 stop26h 25m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£551

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 29/10

07:15-18:00

1 stop17h 45m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£648

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Mon 25/1

10:55-22:39

2 stops43h 44m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£728

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 22/10

17:35-22:56

2 stops37h 21m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£728

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 30/9

17:45-22:56

2 stops37h 11m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£729

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 27/10

17:20-15:32

2 stops29h 12m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£729

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 6/12

17:20-22:43

2 stops37h 23m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£739

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 18/11

10:55-17:10

1 stop38h 15m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£739

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Stansted to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Stansted with our price prediction graph.

STN-SEA

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 into for flights to Seattle from London Stansted?
Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from London Stansted. On average, Seattle/Tacoma Intl has 0 inbound flights from London Stansted 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 London Stansted Airport to Seattle?
For as low as £748, Turkish Airlines can have you in Seattle from London Stansted Airport in 38h 15m. The distance from London Stansted Airport to Seattle is about 4778 mi.
Can I find deals for flights from Stansted to Seattle that include hotel bookings?
Yes. In addition to deals on Stansted to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Stansted to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Seattle.
Can I find deals for business class flights from Stansted to Seattle?
Yes. Cheapflights offers flight deals from Stansted to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Cheapflights helps you search for flights from Stansted to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Stansted to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Stansted.

Can Cheapflights find flights from Stansted to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Stansted shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Stansted to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from London Stansted Airport to Seattle from £382

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Stansted to Seattle

Cheapest flights from Stansted to SeattleExplore the most affordable flight options available from Stansted to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Explore the most affordable flight options available from Stansted to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Stansted to SeattleDiscover carefully curated flight deals from Stansted to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from Stansted to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Stansted to SeattleDiscover last-minute flight deals from Stansted to Seattle. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Seattle. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Stansted to SeattleSearch for one-way flight options from Stansted to Seattle. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from Stansted to Seattle. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

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

Best time to book a flight from Stansted to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Stansted with our price prediction graph.

Related info for your journey

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

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

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

How can I find direct flights from Stansted to Seattle?

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

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Stansted to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Seattle by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Washington

Book a non-stop flight to one of these other cities located in Washington.

Search flights from Stansted to Seattle by cabin class

Find flights from Stansted to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Stansted and Seattle flights

Browse other Stansted and Seattle flight options. Last updated on 18 September 2026.

Other flights from Stansted

Browse through other flights departing from Stansted. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

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Other flights to Seattle

Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

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How does Cheapflights help users find flights from Stansted to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Stansted to Seattle?

Can Cheapflights find flights from Stansted to Seattle with no change fees?

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

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Cheapest flights from Stansted to Seattle
Explore the most affordable flight options available from Stansted to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from Stansted to Seattle
Discover carefully curated flight deals from Stansted to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from Stansted to Seattle
Discover last-minute flight deals from Stansted to Seattle. Data last updated 18 September 2026 and is based on user searches.

One-way flights from Stansted to Seattle
Search for one-way flight options from Stansted to Seattle. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.