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Cheap flights from London Stansted Airport to Seattle from £414

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
1 1月 — 8 1月1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Stansted to Seattle

Enter your travel dates to find the best prices.

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 2 12月 2025.

週四 4/1208:05STN - SEA
2 stops16h 55mMultiple Airlines
週二 10/314:40SEA - STN
2 stops23h 35mMultiple Airlines
Deal found 30/11£692
週四 4/1205:55STN - SEA
2 stops17h 45mMultiple Airlines
週四 11/1217:40SEA - STN
2 stops21h 30mMultiple Airlines
Deal found 1/12£769
週日 7/1210:15STN - SEA
1 stop16h 05mMultiple Airlines
週日 14/1220:05SEA - STN
1 stop16h 00mMultiple Airlines
Deal found 1/12£799
週二 16/1206:15STN - SEA
3 stops48h 01mMultiple Airlines
週三 7/115:10SEA - STN
2 stops23h 05mMultiple Airlines
Deal found 30/11£807
週三 10/1209:05STN - SEA
2 stops15h 55mMultiple Airlines
週日 4/120:05SEA - STN
1 stop16h 00mMultiple Airlines
Deal found 30/11£810
週三 24/1206:20STN - SEA
2 stops17h 20mMultiple Airlines
週一 29/1220:05SEA - STN
1 stop17h 15mMultiple Airlines
Deal found 30/11£867
週三 24/1206:20STN - SEA
2 stops17h 20mMultiple Airlines
週五 2/115:10SEA - STN
2 stops24h 35mMultiple Airlines
Deal found 1/12£924
週四 11/1205:55STN - SEA
2 stops17h 45mMultiple Airlines
週四 25/1214:35SEA - STN
2 stops24h 45mMultiple Airlines
Deal found 1/12£946

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 2 12月 2025.

Round-trip from

£541

One-way from

£414

Popular in

July

Cheapest in

January

Average price

£646
1/3-15/3
  • 1/3-15/3
  • 2 total stops
  • 33h 15m total
  • London to Seattle
Search Deals
8/12
  • 8/12
  • 3 total stops
  • 39h 45m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 2 12月 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

週二 5/5

22:00-20:28

3 stops30h 28m

Seattle/Tacoma Intl

週二 19/5

07:05-17:35

3 stops26h 30m

£542

LondonSeattle

STN - SEA

STNSEA

London Stansted

週二 19/5

07:10-16:00

2 stops16h 50m

Seattle/Tacoma Intl

週五 5/6

07:05-23:20

3 stops32h 15m

£581

LondonSeattle

STN - SEA

STNSEA

London Stansted

週六 9/5

06:30-20:28

3 stops21h 58m

Seattle/Tacoma Intl

週日 24/5

07:05-14:15

3 stops23h 10m

£608

LondonSeattle

STN - SEA

STNSEA

London Stansted

週一 12/1

06:10-17:00

2 stops18h 50m

Seattle/Tacoma Intl

週一 19/1

14:35-19:25

2 stops20h 50m

£618

LondonSeattle

STN - SEA

STNSEA

London Stansted

週一 12/1

06:10-17:00

2 stops18h 50m

Seattle/Tacoma Intl

週一 26/1

14:35-19:25

2 stops20h 50m

£618

LondonSeattle

STN - SEA

STNSEA

London Stansted

週六 25/4

06:30-13:08

3 stops38h 38m

Seattle/Tacoma Intl

週六 2/5

07:05-22:00

3 stops30h 55m

£634

LondonSeattle

STN - SEA

STNSEA

London Stansted

週一 4/5

06:30-20:28

3 stops21h 58m

Seattle/Tacoma Intl

週一 18/5

15:45-20:55

2 stops21h 10m

£649

LondonSeattle

STN - SEA

STNSEA

London Stansted

週日 19/4

20:15-15:40

2 stops27h 25m

Seattle/Tacoma Intl

週四 23/4

18:45-14:35

1 stop11h 50m

£706

LondonSeattle

STN - SEA

STNSEA

London Stansted

週六 2/5

17:45-17:15

1 stop31h 30m

Seattle/Tacoma Intl

週一 11/5

19:10-22:10

1 stop19h 00m

£715

LondonSeattle

STN - SEA

STNSEA

London Stansted

週一 8/12

09:15-17:00

3 stops39h 45m

£414

Flights are sorted by cheapest return flights first.

Deals found on 30/11

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 return 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?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from London Stansted. On average, Seattle/Tacoma Intl has 0 inbound flights from London Stansted per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • 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 holiday 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

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac

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How does Cheapflights help users find flights from Stansted to Seattle?

Cheapflights helps you search for flights from Stansted to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Stansted to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Stansted.

Can Cheapflights find flights from Stansted to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Stansted shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Stansted to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Stansted to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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