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Stansted

$357+ Cheap flights from Seattle (SEA) to Stansted (STN)

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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STN
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find flight deals from Seattle to Stansted

Cheapest flights from Seattle to Stansted
Explore the most affordable flight options available from Seattle to Stansted. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Mytrip deal was found by Cheapflights users on 11/6. 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 11/302:35 pmSEA - STN
2 stops19h 00mMultiple Airlines
Fri 12/55:55 amSTN - SEA
2 stops19h 05mMultiple Airlines
Deal found 11/6$525
This Mytrip deal was found by Cheapflights users on 11/5. 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 12/32:35 pmSEA - STN
2 stops21h 00mMultiple Airlines
Wed 12/106:30 amSTN - SEA
2 stops18h 30mMultiple Airlines
Deal found 11/5$545
This Mytrip deal was found by Cheapflights users on 11/6. 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 12/18:05 pmSEA - STN
1 stop17h 15mMultiple Airlines
Mon 12/810:15 amSTN - SEA
1 stop16h 05mMultiple Airlines
Deal found 11/6$547
This Mytrip deal was found by Cheapflights users on 11/4. 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 11/98:10 amSEA - STN
2 stops21h 10mMultiple Airlines
Tue 11/259:45 pmSTN - SEA
3 stops32h 21mMultiple Airlines
Deal found 11/4$548
This Mytrip deal was found by Cheapflights users on 11/5. 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 11/162:35 pmSEA - STN
2 stops21h 30mMultiple Airlines
Mon 11/246:10 amSTN - SEA
2 stops18h 50mMultiple Airlines
Deal found 11/5$551
This Mytrip deal was found by Cheapflights users on 11/5. 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.
Fri 12/52:35 pmSEA - STN
2 stops18h 45mMultiple Airlines
Wed 12/106:00 amSTN - SEA
2 stops19h 00mMultiple Airlines
Deal found 11/5$559
This Mytrip deal was found by Cheapflights users on 11/5. 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 12/28:10 amSEA - STN
2 stops26h 10mMultiple Airlines
Mon 12/89:45 pmSTN - SEA
2 stops22h 25mMultiple Airlines
Deal found 11/5$567
This Mytrip deal was found by Cheapflights users on 11/6. 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 12/42:35 pmSEA - STN
2 stops25h 05mMultiple Airlines
Thu 12/118:45 amSTN - SEA
2 stops16h 15mMultiple Airlines
Deal found 11/6$608
This Mytrip deal was found by Cheapflights users on 11/6. 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 11/185:50 amSEA - STN
3 stops20h 00mMultiple Airlines
Tue 11/252:45 pmSTN - SEA
2 stops30h 35mMultiple Airlines
Deal found 11/6$615
This Mytrip deal was found by Cheapflights users on 11/6. 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 11/102:00 pmSEA - STN
2 stops23h 20mMultiple Airlines
Tue 11/259:45 pmSTN - SEA
3 stops29h 31mMultiple Airlines
Deal found 11/6$632

Cheap flight deals from Seattle to Stansted

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Stansted (STN). 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 November 6, 2025.

Most accurate provider

AranGrant
2 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$525
(Mytrip)

One-way from

$357
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$691
Provider with most accurate pricing for Seattle/Tacoma Intl-London Stansted flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London Stansted flights.
Search Deals
From Seattle/Tacoma Intl to London Stansted
Search Deals
One-way flight from Seattle/Tacoma Intl to London Stansted
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Stansted 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 November 6, 2025.
Use the filters below to find and compare flights from Seattle to London Stansted Airport that are best for you.

Fly from

Seattle

Fly to

Stansted

Route

Depart

Return

Price

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 12/3

2:35 pm-7:35 pm

2 stops21h 00m

London Stansted

Wed 12/10

6:30 am-5:00 pm

2 stops18h 30m

$548

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 12/5

2:35 pm-5:20 pm

2 stops18h 45m

London Stansted

Wed 12/10

6:00 am-5:00 pm

2 stops19h 00m

$559

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 12/2

8:10 am-6:20 pm

2 stops26h 10m

London Stansted

Mon 12/8

9:45 pm-12:10 pm

2 stops22h 25m

$567

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 2/11

3:10 pm-10:40 pm

2 stops23h 30m

London Stansted

Mon 2/23

6:00 pm-7:16 pm

3 stops33h 16m

$612

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 12/4

8:10 am-11:35 pm

3 stops31h 25m

London Stansted

Thu 12/11

11:30 am-12:10 pm

2 stops32h 40m

$613

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 12/4

2:35 pm-11:40 pm

2 stops25h 05m

London Stansted

Sat 12/13

7:20 pm-5:00 pm

2 stops29h 40m

$667

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 4/1

7:00 pm-10:50 pm

2 stops19h 50m

London Stansted

Thu 4/9

7:05 am-11:05 pm

3 stops24h 00m

$708

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 4/6

7:10 pm-10:15 am

1 stop31h 05m

London Stansted

Tue 4/14

5:45 pm-5:15 pm

1 stop31h 30m

$720

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 3/25

8:00 pm-10:15 pm

1 stop19h 15m

London Stansted

Wed 4/8

6:15 am-5:15 pm

1 stop19h 00m

$725

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 3/17

8:00 pm-4:20 pm

1 stop37h 20m

London Stansted

Thu 4/2

5:45 pm-5:15 pm

1 stop31h 30m

$737

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 22 results
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  • Most accurate provider: When it comes to deals on Seattle-London Stansted Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-London Stansted Airport flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Seattle-London Stansted Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London Stansted Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Seattle-London Stansted Airport 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 Seattle to Stansted

Have a flexible travel schedule? Discover the best time to fly to Stansted from Seattle 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 Seattle to Stansted. 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 from for flights from Seattle to London Stansted?

    For a flight from Seattle to London Stansted, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 outbound flights to London Stansted per day. 0 airlines have flights to London Stansted from Seattle/Tacoma Intl on a regular basis.

  • Can I find deals for flights from Seattle to Stansted that include hotel bookings?

    Yes. In addition to deals on Seattle to Stansted flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Stansted?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Stansted.

  • Can I find deals for business class flights from Seattle to Stansted?

    Yes. Cheapflights offers flight deals from Seattle to Stansted 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 London Stansted Airport?

Book flights to London Stansted Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

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