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$477+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
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 January 19, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$535
(Mytrip)

One-way from

$477
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$644
Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.
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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 ($108 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 19, 2026.

This Mytrip deal was found by Cheapflights users on 1/18. 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.
Tue 1/276:30 am
STN
-
SEA
2 stops18h 30m
Multiple Airlines
Fri 1/302:35 pm
SEA
-
STN
2 stops19h 45m
Multiple Airlines
Deal found 1/18$531
This Mytrip deal was found by Cheapflights users on 1/18. 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 3/46:30 am
STN
-
SEA
2 stops18h 30m
Multiple Airlines
Wed 3/113:35 pm
SEA
-
STN
2 stops16h 30m
Multiple Airlines
Deal found 1/18$535
This Mytrip deal was found by Cheapflights users on 1/19. 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 3/510:55 am
STN
-
SEA
2 stops33h 15m
Multiple Airlines
Thu 3/123:00 pm
SEA
-
STN
2 stops26h 15m
Multiple Airlines
Deal found 1/19$562
This Booking.com deal was found by Cheapflights users on 1/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:30 am
STN
-
SEA
2 stops16h 30m
Multiple Airlines
Thu 4/23:40 pm
SEA
-
STN
2 stops19h 55m
Multiple Airlines
Deal found 1/18$582
This Booking.com deal was found by Cheapflights users on 1/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/66:30 am
STN
-
SEA
2 stops18h 30m
Multiple Airlines
Mon 2/92:35 pm
SEA
-
STN
2 stops19h 45m
Multiple Airlines
Deal found 1/19$588
This Booking.com deal was found by Cheapflights users on 1/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/110:15 am
STN
-
SEA
1 stop16h 05m
Multiple Airlines
Sun 3/159:05 pm
SEA
-
STN
1 stop17h 15m
Multiple Airlines
Deal found 1/18$624
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:55 am
STN
-
SEA
2 stops33h 14m
Multiple Airlines
Wed 4/226:55 pm
SEA
-
STN
1 stop11h 40m
Multiple Airlines
Deal found 1/18$670
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:45 pm
STN
-
SEA
2 stops31h 33m
Multiple Airlines
Wed 3/259:05 pm
SEA
-
STN
1 stop17h 00m
Multiple Airlines
Deal found 1/18$724

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 January 19, 2026.
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

Mon 3/23

6:10 am-6:00 pm

2 stops18h 50m

Seattle/Tacoma Intl

Sun 3/29

3:40 pm-11:20 pm

3 stops23h 40m

$849

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 4/4

8:30 am-10:10 pm

3 stops21h 40m

Seattle/Tacoma Intl

Sun 4/12

3:40 pm-5:15 pm

2 stops17h 35m

$881

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 2/15

11:20 pm-3:40 pm

3 stops24h 20m

Seattle/Tacoma Intl

Wed 3/11

4:10 pm-12:15 am

2 stops25h 05m

$905

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 4/13

10:50 am-5:15 pm

1 stop38h 25m

Seattle/Tacoma Intl

Mon 4/27

7:10 pm-9:55 am

1 stop30h 45m

$927

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 5/4

10:50 am-5:15 pm

1 stop38h 25m

Seattle/Tacoma Intl

Fri 5/8

7:10 pm-10:10 pm

1 stop19h 00m

$940

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 6/15

10:50 am-5:15 pm

1 stop38h 25m

Seattle/Tacoma Intl

Wed 7/1

7:10 pm-9:55 am

1 stop30h 45m

$953

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 6/17

6:15 am-5:15 pm

1 stop19h 00m

Seattle/Tacoma Intl

Wed 7/1

7:10 pm-10:10 pm

1 stop19h 00m

$953

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 6/18

5:45 pm-5:15 pm

1 stop31h 30m

Seattle/Tacoma Intl

Wed 7/1

7:10 pm-4:50 pm

1 stop37h 40m

$953

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 4/25

5:45 pm-5:15 pm

1 stop31h 30m

Seattle/Tacoma Intl

Sat 5/2

7:10 pm-9:55 am

1 stop30h 45m

$954

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 6/16

6:15 am-5:15 pm

1 stop19h 00m

Seattle/Tacoma Intl

Sat 7/4

12:35 pm-9:55 am

1 stop37h 20m

$966

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 23 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.

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

    A quick flight from London Stansted Airport to Seattle can take about 38h 25m. Turkish Airlines provides one of the quickest options available for as low as $927. There are 4778 mi between London Stansted Airport and Seattle.

  • 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
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Lakewood
Ocean Shores
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Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
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