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Cheap flights from London Stansted Airport to Seattle from £384

STN — SEA
21 Sep — 28 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to Seattle

Thu 5/1106:55 -
2 stops18h 05m
Thu 12/1114:35 -
2 stops19h 35m
Deal found 20/8£490
Sat 5/911:20 -
2 stops32h 25m
Sun 13/919:00 -
2 stops20h 20m
Deal found 18/8£495
Tue 15/922:00 -
3 stops43h 40m
Tue 6/1019:00 -
2 stops21h 10m
Deal found 18/8£501
Thu 8/1006:30 -
2 stops19h 25m
Mon 12/1015:40 -
2 stops23h 40m
Deal found 20/8£507
Mon 9/1106:10 -
2 stops17h 45m
Mon 16/1117:50 -
2 stops20h 55m
Deal found 21/8£511
Thu 5/1119:40 -
2 stops29h 20m
Thu 19/1114:35 -
2 stops18h 50m
Deal found 18/8£512
Thu 15/1006:25 -
2 stops17h 35m
Tue 20/1018:05 -
2 stops22h 05m
Deal found 20/8£519
Mon 24/812:00 -
2 stops31h 45m
Mon 7/915:40 -
2 stops22h 45m
Deal found 17/8£526
Sat 3/1013:55 -
2 stops31h 50m
Sat 10/1015:55 -
2 stops18h 35m
Deal found 19/8£534
Fri 2/1016:30 -
2 stops29h 15m
Fri 9/1015:55 -
3 stops23h 25m
Deal found 18/8£535

Find flight deals from Stansted to Seattle

Round-trip from

£490

One-way from

£384

Popular in

August

Cheapest in

February

Average price

£626
5/11-12/11
  • 5/11-12/11
  • 4 total stops
  • 37h 40m total
  • London to Seattle
Search Deals
23/9
  • 23/9
  • 3 total stops
  • 35h 10m total
  • London to Seattle
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Stansted Airport to Seattle that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 8/10

17:35-22:56

2 stops37h 21m

Seattle/Tacoma Intl

Wed 21/10

10:42-09:55

2 stops39h 13m

£717

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 1/10

17:35-22:56

2 stops37h 21m

Seattle/Tacoma Intl

Wed 14/10

19:15-09:55

1 stop30h 40m

£724

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 1/10

17:35-22:56

2 stops37h 21m

Seattle/Tacoma Intl

Mon 30/11

19:05-09:55

1 stop30h 50m

£725

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 27/10

17:20-15:32

2 stops29h 12m

Seattle/Tacoma Intl

Sun 8/11

19:05-16:20

1 stop37h 15m

£755

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 1/10

17:35-17:20

1 stop31h 45m

Seattle/Tacoma Intl

Thu 8/10

19:15-16:50

1 stop37h 35m

£786

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 25/12

17:20-17:10

1 stop31h 50m

Seattle/Tacoma Intl

Mon 11/1

11:00-09:55

2 stops38h 55m

£821

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 30/9

10:50-17:20

1 stop38h 30m

Seattle/Tacoma Intl

Sun 11/10

19:15-16:40

1 stop37h 25m

£829

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 20/9

17:35-22:45

2 stops37h 10m

Seattle/Tacoma Intl

Tue 20/10

19:15-16:40

1 stop37h 25m

£840

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 15/10

17:35-22:56

2 stops37h 21m

Seattle/Tacoma Intl

Thu 29/10

10:50-09:55

2 stops40h 05m

£868
Fastest return journey

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 20/9

17:35-22:45

2 stops37h 10m

Seattle/Tacoma Intl

Sun 27/9

19:15-22:10

1 stop18h 55m

£896

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 18 resultsSorted by cheapest first
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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

Related info for your journey

  • 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.

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

    For as low as £717, Turkish Airlines can have you in Seattle from London Stansted Airport in 37h 21m. The distance from London Stansted Airport to Seattle is about 4778 mi.

  • 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
Federal Way
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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