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Cheap flights from London Stansted Airport to Seattle from £382

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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Seattle

Enter your travel dates to find the best prices.

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 17 April 2026.

Wed 27/506:30
STN
-
SEA
1 stop18h 40m
Multiple Airlines
Wed 3/619:10
SEA
-
STN
1 stop16h 20m
Multiple Airlines
Deal found 12/4£506
Wed 22/406:30
STN
-
SEA
1 stop18h 40m
Multiple Airlines
Sun 26/419:10
SEA
-
STN
1 stop20h 15m
Multiple Airlines
Deal found 14/4£511
Thu 28/512:00
STN
-
SEA
1 stop13h 10m
Multiple Airlines
Thu 4/619:10
SEA
-
STN
1 stop20h 10m
Multiple Airlines
Deal found 13/4£513
Thu 7/506:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
Thu 14/513:30
SEA
-
STN
2 stops25h 25m
Multiple Airlines
Deal found 13/4£516
Sat 2/506:35
STN
-
SEA
3 stops35h 05m
Multiple Airlines
Tue 5/515:40
SEA
-
STN
3 stops22h 20m
Multiple Airlines
Deal found 16/4£517
Fri 8/506:35
STN
-
SEA
1 stop18h 35m
Multiple Airlines
Thu 21/519:10
SEA
-
STN
1 stop20h 10m
Multiple Airlines
Deal found 13/4£519
Mon 4/506:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
Fri 8/519:00
SEA
-
STN
2 stops21h 50m
Multiple Airlines
Deal found 16/4£523
Thu 14/512:00
STN
-
SEA
1 stop13h 10m
Multiple Airlines
Thu 21/519:10
SEA
-
STN
1 stop19h 15m
Multiple Airlines
Deal found 14/4£525
Thu 14/512:00
STN
-
SEA
1 stop13h 10m
Multiple Airlines
Wed 27/519:10
SEA
-
STN
1 stop20h 10m
Multiple Airlines
Deal found 14/4£526

Find flight deals from Stansted to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) to Seattle (SEA). 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 17 April 2026.

Round-trip from

£506

One-way from

£382

Popular in

July

Cheapest in

February

Average price

£534
27/5-3/6
  • 27/5-3/6
  • 2 total stops
  • 35h 00m total
  • London to Seattle
Search Deals
16/6
  • 16/6
  • 2 total stops
  • 41h 55m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£52 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted to Seattle 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 17 April 2026.
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 - SEA

STNSEA

London Stansted

Fri 8/5

06:55-17:15

1 stop18h 20m

Seattle/Tacoma Intl

Mon 6/7

12:35-16:40

1 stop20h 05m

£748

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 3/5

06:55-17:15

1 stop18h 20m

Seattle/Tacoma Intl

Sat 11/7

12:35-16:40

1 stop20h 05m

£759

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 16/5

10:50-17:15

1 stop38h 25m

Seattle/Tacoma Intl

Mon 3/8

12:35-22:10

1 stop25h 35m

£782

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 6/6

10:50-17:15

1 stop38h 25m

Seattle/Tacoma Intl

Sat 20/6

12:35-09:55

1 stop37h 20m

£816

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 4/5

10:50-17:15

1 stop38h 25m

Seattle/Tacoma Intl

Fri 8/5

08:38-16:50

2 stops24h 12m

£863

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 4/6

17:35-17:15

1 stop31h 40m

Seattle/Tacoma Intl

Thu 11/6

19:10-09:55

1 stop30h 45m

£867

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 1/5

17:35-17:15

1 stop31h 40m

Seattle/Tacoma Intl

Tue 5/5

08:38-16:50

2 stops24h 12m

£894

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 26/4

10:50-17:15

1 stop38h 25m

Seattle/Tacoma Intl

Fri 1/5

08:38-22:10

2 stops29h 32m

£908

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 1/5

17:35-21:06

2 stops35h 31m

Seattle/Tacoma Intl

Sat 9/5

19:10-09:55

1 stop30h 45m

£912

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 30/6

06:55-17:15

1 stop18h 20m

Seattle/Tacoma Intl

Thu 30/7

19:10-16:50

1 stop37h 40m

£940

Flights are sorted by cheapest return flights first.

Deals found on 16/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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.
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

Find useful and relevant information for your journey from Stansted to Seattle. 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 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 18h 20m. 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Federal Way
SeaTac

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

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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