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$531+ Cheap flights from Stansted (STN) to Seattle (SEA)

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$665
(Mytrip)

One-way from

$531
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$941
From London Stansted to Seattle/Tacoma Intl
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One-way flight from London Stansted to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 12% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Stansted to Seattle

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 August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/108:15 amSTN - SEA
2 stops19h 06mMultiple Airlines
Wed 10/88:40 amSEA - STN
2 stops27h 20mMultiple Airlines
Deal found 8/14$665
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:15 amSTN - SEA
2 stops20h 25mMultiple Airlines
Sun 10/53:45 pmSEA - STN
2 stops18h 15mMultiple Airlines
Deal found 8/14$674
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/18:00 amSTN - SEA
2 stops35h 25mMultiple Airlines
Sun 9/73:45 pmSEA - STN
2 stops17h 00mMultiple Airlines
Deal found 8/14$695
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3012:10 pmSTN - SEA
2 stops16h 30mMultiple Airlines
Sun 9/73:45 pmSEA - STN
2 stops17h 00mMultiple Airlines
Deal found 8/14$703
This Mytrip deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:25 amSTN - SEA
1 stop19h 25mMultiple Airlines
Mon 9/297:35 pmSEA - STN
1 stop14h 45mMultiple Airlines
Deal found 8/13$801
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:35 amSTN - SEA
2 stops15h 41mMultiple Airlines
Mon 9/227:15 amSEA - STN
2 stops29h 45mMultiple Airlines
Deal found 8/14$806
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:55 amSTN - SEA
3 stops34h 27mMultiple Airlines
Thu 10/25:30 amSEA - STN
3 stops31h 40mMultiple Airlines
Deal found 8/14$829

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from London Stansted Airport to Seattle that are best for you.

Fly from

Stansted

Fly to

Seattle

Route

Depart

Return

Price

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 9/10

8:15 am-7:21 pm

2 stops19h 06m

Seattle/Tacoma Intl

Wed 10/8

8:40 am-8:00 pm

2 stops27h 20m

$665

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 9/28

8:15 am-8:40 pm

2 stops20h 25m

Seattle/Tacoma Intl

Sun 10/5

3:45 pm-6:00 pm

2 stops18h 15m

$674

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 9/1

8:00 am-11:25 am

2 stops35h 25m

Seattle/Tacoma Intl

Sun 9/7

3:45 pm-4:45 pm

2 stops17h 00m

$695

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 8/30

12:10 pm-8:40 pm

2 stops16h 30m

Seattle/Tacoma Intl

Sun 9/7

3:45 pm-4:45 pm

2 stops17h 00m

$703

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 9/15

6:25 am-5:50 pm

1 stop19h 25m

Seattle/Tacoma Intl

Mon 9/29

7:35 pm-6:20 pm

1 stop14h 45m

$801

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 9/20

6:35 am-2:16 pm

2 stops15h 41m

Seattle/Tacoma Intl

Mon 9/22

7:15 am-9:00 pm

2 stops29h 45m

$806

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 9/18

6:55 am-9:22 am

3 stops34h 27m

Seattle/Tacoma Intl

Thu 10/2

5:30 am-9:10 pm

3 stops31h 40m

$829

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 11/6

6:15 am-5:50 pm

2 stops19h 35m

$531

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 9/3

5:20 pm-5:50 pm

2 stops32h 30m

$532

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 8/28

6:55 am-1:50 pm

2 stops38h 55m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 18 results
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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 round-trip 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?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from London Stansted to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from London Stansted on a regular basis. Booking flights from London Stansted to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from London Stansted per day.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from London Stansted Airport to Seattle?

    Currently, January is the cheapest month in which you can book a flight from London Stansted Airport to Seattle (average of $238). Flying from London Stansted Airport to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
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Federal Way
Shelton

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