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

For as low as £724, Turkish Airlines can have you in Seattle from London Stansted Airport in 43h 34m. 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.

£377+ 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 2 September 2026.

Sun 27/910:15 -

1 stop14h 44m

Sun 4/1018:50 -

1 stop12h 45m

Deal found 30/8£517

Tue 29/911:00 -

1 stop13h 59m

Tue 6/1018:50 -

1 stop12h 45m

Deal found 1/9£518

Tue 29/920:25 -

2 stops23h 30m

Wed 7/1005:50 -

3 stops29h 35m

Deal found 2/9£520

Thu 1/1016:55 -

2 stops28h 50m

Wed 28/1015:35 -

3 stops23h 00m

Deal found 29/8£521

Thu 15/1019:50 -

2 stops24h 30m

Fri 23/1018:50 -

2 stops21h 15m

Deal found 2/9£529

Tue 22/911:00 -

1 stop13h 59m

Thu 1/1018:50 -

1 stop12h 50m

Deal found 1/9£537

Mon 28/916:25 -

1 stop32h 34m

Tue 6/1018:50 -

1 stop12h 45m

Deal found 29/8£539

Thu 1/1022:05 -

1 stop23h 40m

Thu 15/1019:00 -

2 stops21h 30m

Deal found 28/8£547

Thu 1/1022:05 -

1 stop23h 40m

Fri 16/1015:40 -

2 stops15h 45m

Deal found 28/8£549

Thu 1/1022:05 -

1 stop23h 40m

Sat 17/1019:00 -

2 stops28h 40m

Deal found 28/8£550

Find flight deals from Stansted to Seattle

Round-trip from	£517
One-way from	£377
Popular in	August
Cheapest in	February
Average price	£542

Lufthansa
27/9-4/10
2 total stops
27h 29m total
London to Seattle

Search Deals

14/9
3 total stops
35h 35m total
London to Seattle

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£26 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

Fastest return journey

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 25/9

06:35-18:45

2 stops20h 10m

Seattle/Tacoma Intl

Sat 3/10

15:55-18:30

2 stops18h 35m

£690

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 18/2

10:55-22:29

2 stops43h 34m

Seattle/Tacoma Intl

Wed 3/3

11:00-09:55

2 stops38h 55m

£724

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Mon 18/1

10:55-17:10

1 stop38h 15m

Seattle/Tacoma Intl

Sun 24/1

10:54-16:20

2 stops45h 26m

£738

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 5/2

17:20-22:39

2 stops37h 19m

Seattle/Tacoma Intl

Mon 8/2

19:05-09:55

1 stop30h 50m

£743

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 15/1

10:55-17:10

1 stop38h 15m

Seattle/Tacoma Intl

Fri 22/1

10:54-09:55

2 stops39h 01m

£777

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sat 31/10

17:20-00:17

2 stops37h 57m

Seattle/Tacoma Intl

Fri 15/1

19:05-16:20

1 stop37h 15m

£797

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 2/10

17:35-22:56

2 stops37h 21m

Seattle/Tacoma Intl

Mon 5/10

19:15-16:50

1 stop37h 35m

£807

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 27/10

17:20-15:32

2 stops29h 12m

Seattle/Tacoma Intl

Sun 8/11

19:05-16:20

1 stop37h 15m

£817

Cheapest one-way

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 6/10

17:35-22:56

2 stops37h 21m

£720

Fastest single journey

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 23/9

17:45-22:56

2 stops37h 11m

£720

Flights are sorted by cheapest return flights first.

Deals found on 31/8

Showing 1-10 of 16 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 £724, Turkish Airlines can have you in Seattle from London Stansted Airport in 43h 34m. 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.

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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 £377

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 14/9. 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 2 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 2 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 2 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 2 September 2026.

Last-minute flights from Stansted to SeattleDiscover last-minute flight deals from Stansted to Seattle. Data last updated 2 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to Seattle. Data last updated 2 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 2 September 2026.

Search for one-way flight options from Stansted to Seattle. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

Find flight deals from Stansted to Seattle

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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

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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 2 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 2 September 2026.

Popular flight searches

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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 2 September 2026.

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

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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 2 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 2 September 2026.

Last-minute flights from Stansted to Seattle
Discover last-minute flight deals from Stansted to Seattle. Data last updated 2 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 2 September 2026.