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$478+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
feb. 20 — feb. 271
vie. 2/20
vie. 2/27
1 adult, Economy
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Cheap 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 enero 21, 2026.

This Mytrip deal was found by Cheapflights users on 1/20. 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.
mar. 2/176:30 am
STN
-
SEA
2 stops18h 30m
Multiple Airlines
mar. 2/242:35 pm
SEA
-
STN
2 stops15h 45m
Multiple Airlines
Deal found 1/20$532
This Mytrip deal was found by Cheapflights users on 1/20. 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.
lun. 2/26:10 am
STN
-
SEA
2 stops18h 50m
Multiple Airlines
lun. 2/162:35 pm
SEA
-
STN
2 stops15h 55m
Multiple Airlines
Deal found 1/20$561
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.
jue. 3/510:55 am
STN
-
SEA
2 stops33h 15m
Multiple Airlines
jue. 3/123:00 pm
SEA
-
STN
2 stops26h 15m
Multiple Airlines
Deal found 1/19$564
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.
vie. 2/66:30 am
STN
-
SEA
2 stops18h 30m
Multiple Airlines
lun. 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 1/20. 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.
jue. 4/306:30 am
STN
-
SEA
3 stops21h 58m
Multiple Airlines
dom. 5/103:40 pm
SEA
-
STN
2 stops17h 35m
Multiple Airlines
Deal found 1/20$646
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
mar. 4/287:05 am
STN
-
SEA
2 stops16h 55m
Multiple Airlines
lun. 5/46:55 pm
SEA
-
STN
1 stop18h 25m
Multiple Airlines
Deal found 1/20$653

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 enero 21, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$532
(Mytrip)

One-way from

$478
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$644
Provider with most accurate pricing for London (LON)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Seattle/Tacoma Intl flights.
Search Deals
From London Stansted to Seattle/Tacoma Intl
Search Deals
One-way flight from London Stansted to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 21, 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

lun. 2/2

6:10 am-5:00 pm

2 stops18h 50m

Seattle/Tacoma Intl

lun. 2/16

2:35 pm-2:30 pm

2 stops15h 55m

$561

LondonSeattle

STN - SEA

STNSEA

London Stansted

jue. 3/5

10:55 am-12:10 pm

2 stops33h 15m

Seattle/Tacoma Intl

jue. 3/12

3:00 pm-12:15 am

2 stops26h 15m

$562

LondonSeattle

STN - SEA

STNSEA

London Stansted

vie. 3/6

11:25 am-12:10 pm

2 stops32h 45m

Seattle/Tacoma Intl

vie. 3/13

4:10 pm-8:45 pm

2 stops21h 35m

$721

LondonSeattle

STN - SEA

STNSEA

London Stansted

jue. 1/29

11:20 pm-5:00 pm

3 stops25h 40m

Seattle/Tacoma Intl

lun. 2/2

2:35 pm-2:30 pm

2 stops15h 55m

$739

LondonSeattle

STN - SEA

STNSEA

London Stansted

jue. 3/5

6:30 am-7:18 pm

2 stops20h 48m

Seattle/Tacoma Intl

dom. 3/15

9:05 pm-6:20 pm

1 stop14h 15m

$741

LondonSeattle

STN - SEA

STNSEA

London Stansted

mié. 2/18

9:05 pm-3:40 pm

2 stops26h 35m

Seattle/Tacoma Intl

lun. 3/2

2:35 pm-2:30 pm

2 stops15h 55m

$746

LondonSeattle

STN - SEA

STNSEA

London Stansted

mar. 1/27

6:30 am-5:00 pm

2 stops18h 30m

Seattle/Tacoma Intl

vie. 1/30

2:35 pm-6:20 pm

2 stops19h 45m

$752

LondonSeattle

STN - SEA

STNSEA

London Stansted

mié. 2/18

9:05 pm-3:40 pm

2 stops26h 35m

Seattle/Tacoma Intl

dom. 3/1

3:10 pm-11:10 pm

2 stops24h 00m

$771

LondonSeattle

STN - SEA

STNSEA

London Stansted

mar. 3/24

6:00 pm-7:20 pm

2 stops32h 20m

$480

LondonSeattle

STN - SEA

STNSEA

London Stansted

dom. 2/22

4:00 pm-10:54 pm

2 stops38h 54m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 17 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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