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Cheap flights from London Stansted Airport to Seattle from £413

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 21/11. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
22 Aug — 29 Aug1
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 23 July 2026.

Wed 26/806:30
STN
-
SEA
3 stops44h 15m
Multiple Airlines
Mon 31/819:00
SEA
-
STN
2 stops15h 50m
Multiple Airlines
Deal found 19/7£537
Tue 25/822:00
STN
-
SEA
3 stops43h 40m
Multiple Airlines
Mon 31/819:00
SEA
-
STN
2 stops15h 50m
Multiple Airlines
Deal found 20/7£543
Wed 26/806:30
STN
-
SEA
3 stops46h 30m
Multiple Airlines
Sun 30/819:00
SEA
-
STN
2 stops20h 40m
Multiple Airlines
Deal found 19/7£552
Wed 7/1020:15
STN
-
SEA
2 stops28h 55m
Multiple Airlines
Mon 19/1015:40
SEA
-
STN
2 stops17h 10m
Multiple Airlines
Deal found 19/7£555
Wed 26/806:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
Thu 27/815:40
SEA
-
STN
2 stops24h 50m
Multiple Airlines
Deal found 19/7£558
Mon 28/922:25
STN
-
SEA
3 stops28h 20m
Multiple Airlines
Mon 5/1015:40
SEA
-
STN
2 stops19h 10m
Multiple Airlines
Deal found 20/7£567
Mon 7/918:00
STN
-
SEA
2 stops29h 40m
Multiple Airlines
Wed 7/1015:40
SEA
-
STN
3 stops21h 15m
Multiple Airlines
Deal found 21/7£585
Tue 1/922:00
STN
-
SEA
3 stops31h 00m
Multiple Airlines
Wed 30/919:00
SEA
-
STN
2 stops17h 20m
Multiple Airlines
Deal found 22/7£596
Wed 2/906:30
STN
-
SEA
3 stops22h 30m
Multiple Airlines
Wed 9/919:00
SEA
-
STN
2 stops17h 20m
Multiple Airlines
Deal found 19/7£599
Thu 10/921:55
STN
-
SEA
3 stops31h 09m
Multiple Airlines
Wed 23/919:00
SEA
-
STN
2 stops17h 20m
Multiple Airlines
Deal found 20/7£605

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 23 July 2026.

Round-trip from

£537

One-way from

£413

Popular in

December

Cheapest in

February

Average price

£631
26/8-31/8
  • 26/8-31/8
  • 5 total stops
  • 60h 05m total
  • London to Seattle
Search Deals
21/11
  • 21/11
  • 2 total stops
  • 30h 40m total
  • London to Seattle
Search Deals
High demand for flights, 0% potential price rise
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 July 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 23 July 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

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 22/9

17:35-22:45

2 stops37h 10m

Seattle/Tacoma Intl

Wed 14/10

10:42-09:55

2 stops39h 13m

£723
Fastest return journey

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 1/10

12:00-17:10

1 stop13h 10m

Seattle/Tacoma Intl

Sat 10/10

23:55-07:50

2 stops23h 55m

£736

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 3/11

17:20-18:10

1 stop32h 50m

Seattle/Tacoma Intl

Tue 17/11

19:05-16:20

1 stop37h 15m

£758

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 16/11

10:55-17:10

1 stop38h 15m

Seattle/Tacoma Intl

Sun 29/11

19:05-16:20

1 stop37h 15m

£766

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 12/11

17:20-17:10

1 stop31h 50m

Seattle/Tacoma Intl

Sun 29/11

19:05-16:20

1 stop37h 15m

£766

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 26/9

17:45-22:56

2 stops37h 11m

Seattle/Tacoma Intl

Thu 22/10

19:15-09:55

1 stop30h 40m

£767

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 17/9

17:35-22:45

2 stops37h 10m

Seattle/Tacoma Intl

Sat 26/9

13:22-09:55

2 stops36h 33m

£768

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 15/11

17:20-17:10

1 stop31h 50m

Seattle/Tacoma Intl

Sun 29/11

19:05-16:20

1 stop37h 15m

£777

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 17/9

17:35-22:45

2 stops37h 10m

Seattle/Tacoma Intl

Thu 24/9

19:15-09:55

1 stop30h 40m

£797
Cheapest one-way

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

21:00-17:55

2 stops28h 55m

£458

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 19 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 £723, Turkish Airlines can have you in Seattle from London Stansted Airport in 37h 10m. 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
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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