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$538+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
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 December 23, 2025.

This Mytrip deal was found by Cheapflights users on 12/22. 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 12/246:20 amSTN - SEA
2 stops17h 20mMultiple Airlines
Wed 1/72:35 pmSEA - STN
3 stops22h 30mMultiple Airlines
Deal found 12/22$783
This Mytrip deal was found by Cheapflights users on 12/22. 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 12/236:00 pmSTN - SEA
2 stops29h 40mMultiple Airlines
Wed 1/72:35 pmSEA - STN
3 stops22h 30mMultiple Airlines
Deal found 12/22$843
This Mytrip deal was found by Cheapflights users on 12/23. 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 12/236:05 pmSTN - SEA
2 stops29h 35mMultiple Airlines
Sat 12/275:50 amSEA - STN
3 stops33h 05mMultiple Airlines
Deal found 12/23$970
This Mytrip deal was found by Cheapflights users on 12/22. 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 12/226:00 pmSTN - SEA
2 stops29h 40mMultiple Airlines
Sat 1/312:35 pmSEA - STN
2 stops21h 25mMultiple Airlines
Deal found 12/22$1,167
This Mytrip deal was found by Cheapflights users on 12/21. 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 12/216:15 pmSTN - SEA
2 stops29h 25mMultiple Airlines
Sun 1/252:35 pmSEA - STN
2 stops20h 00mMultiple Airlines
Deal found 12/21$1,210
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Fri 12/2612:00 pmSTN - SEA
1 stop14h 20mMultiple Airlines
Fri 1/28:05 pmSEA - STN
1 stop12h 30mMultiple Airlines
Deal found 12/21$1,434
This Booking.com deal was found by Cheapflights users on 12/23. 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 12/268:10 pmSTN - SEA
2 stops27h 30mMultiple Airlines
Wed 12/312:35 pmSEA - STN
3 stops25h 40mMultiple Airlines
Deal found 12/23$1,549
This Booking.com deal was found by Cheapflights users on 12/23. 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 12/288:30 amSTN - SEA
1 stop17h 50mMultiple Airlines
Sun 1/42:35 pmSEA - STN
2 stops19h 30mMultiple Airlines
Deal found 12/23$1,577

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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$629
(Mytrip)

One-way from

$538
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$853
Provider with most accurate pricing for London Stansted-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Stansted-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. 13% potential increase in price ($110 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 December 2025
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 December 23, 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

Mon 2/23

8:30 pm-10:46 pm

3 stops34h 16m

Seattle/Tacoma Intl

Thu 2/26

2:35 pm-7:45 pm

2 stops21h 10m

$647

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 2/4

2:20 pm-12:10 pm

3 stops29h 50m

Seattle/Tacoma Intl

Wed 2/11

3:10 pm-10:15 pm

2 stops23h 05m

$748

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 1/18

6:15 am-10:16 pm

2 stops24h 01m

Seattle/Tacoma Intl

Sun 1/25

2:35 pm-6:35 pm

2 stops20h 00m

$760

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 2/2

7:50 pm-10:16 pm

3 stops34h 26m

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-9:10 pm

2 stops22h 35m

$815

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 6/12

6:40 am-4:00 pm

2 stops17h 20m

Seattle/Tacoma Intl

Mon 8/24

6:45 pm-5:35 pm

1 stop14h 50m

$876

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 6/12

6:40 am-4:00 pm

2 stops17h 20m

Seattle/Tacoma Intl

Sun 8/23

6:45 pm-2:30 pm

1 stop11h 45m

$885

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 1/12

9:20 pm-10:01 am

2 stops44h 41m

Seattle/Tacoma Intl

Sun 4/12

6:45 pm-2:30 pm

1 stop11h 45m

$902

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 1/12

6:30 am-9:28 pm

2 stops22h 58m

Seattle/Tacoma Intl

Mon 3/30

6:45 pm-2:40 pm

1 stop11h 55m

$923

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 4/16

5:45 pm-5:15 pm

1 stop31h 30m

Seattle/Tacoma Intl

Thu 4/30

7:10 pm-9:55 am

1 stop30h 45m

$933

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 4/16

5:45 pm-5:15 pm

1 stop31h 30m

Seattle/Tacoma Intl

Sun 5/3

7:10 pm-10:10 pm

1 stop19h 00m

$1,146

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 18 results
1
2

Compare providers for flights from Stansted to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Stansted to Seattle in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Stansted Airport-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Stansted Airport-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from London Stansted Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Stansted Airport-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Stansted Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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
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Kent
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