When did momondo last update prices for flights from London Stansted Airport to Seattle/Tacoma Intl Airport?

Prices for flights from London Stansted Airport to Seattle/Tacoma Intl Airport were last updated today.

How old do you have to be to fly from London Stansted Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£409 Cheap Flights from London Stansted Airport to Seattle in 2025/26

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Find the cheapest flights from London Stansted Airport to Seattle

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19:00 - 12:10STN-SEA

25h 10m2 stops

14:00 - 22:20SEA-STN

24h 20m2 stops

£508Multiple Airlines

Find Deal

Fri, 23 Jan - Sat, 7 Feb

07:40 - 00:42STN-SEA

24h 02m2 stops

21:05 - 18:20SEA-STN

14h 15m1 stop

£548Multiple Airlines

Find Deal

Tue, 17 Mar - Mon, 23 Mar

05:55 - 15:40STN-SEA

17h 45m2 stops

17:40 - 11:25SEA-STN

33h 45m3 stops

£551Multiple Airlines

Find Deal

Mon, 19 Jan - Mon, 2 Feb

05:55 - 15:40STN-SEA

17h 45m2 stops

17:40 - 11:25SEA-STN

33h 45m3 stops

£551Multiple Airlines

Find Deal

Mon, 19 Jan - Mon, 2 Feb

05:55 - 15:40STN-SEA

17h 45m2 stops

17:40 - 11:25SEA-STN

33h 45m3 stops

£552Multiple Airlines

Find Deal

Mon, 19 Jan - Mon, 2 Feb

22:00 - 20:28STN-SEA

30h 28m3 stops

07:05 - 14:15SEA-STN

23h 10m3 stops

£568Multiple Airlines

Find Deal

Fri, 8 May - Sun, 24 May

22:00 - 20:28STN-SEA

30h 28m3 stops

07:05 - 23:20SEA-STN

32h 15m3 stops

£569Multiple Airlines

Find Deal

Tue, 5 May - Thu, 21 May

06:30 - 20:28STN-SEA

21h 58m3 stops

19:00 - 20:55SEA-STN

17h 55m2 stops

£577Multiple Airlines

Find Deal

Thu, 7 May - Mon, 11 May

22:00 - 20:28STN-SEA

30h 28m3 stops

19:00 - 21:35SEA-STN

18h 35m2 stops

£591Multiple Airlines

Find Deal

Fri, 1 May - Sat, 9 May

08:30 - 00:42STN-SEA

23h 12m2 stops

21:05 - 18:20SEA-STN

14h 15m1 stop

£592Multiple Airlines

Find Deal

Thu, 19 Mar - Mon, 23 Mar

Turkish Airlines flights from London Stansted Airport to Seattle

Our best Turkish Airlines deals on London Stansted Airport to Seattle flight tickets

Turkish Airlines

7 May

STN17:45London Stansted

31h 30m

1 stop

SEA17:15Seattle/Tacoma Intl

11 May

SEA19:10Seattle/Tacoma Intl

19h 00m

1 stop

STN22:10London Stansted

£706

Find similar

Turkish Airlines

2 May

STN17:45London Stansted

31h 30m

1 stop

SEA17:15Seattle/Tacoma Intl

16 May

SEA19:10Seattle/Tacoma Intl

31h 05m

1 stop

STN10:15London Stansted

£717

Find similar

Turkish Airlines

13 Apr

STN11:10London Stansted

38h 05m

1 stop

SEA17:15Seattle/Tacoma Intl

21 Apr

SEA19:10Seattle/Tacoma Intl

37h 40m

1 stop

STN16:50London Stansted

£723

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momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 23/1

19:00-12:10

2 stops25h 10m

Seattle/Tacoma Intl

Sat 7/2

14:00-22:20

2 stops24h 20m

£508

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 17/3

07:40-00:42

2 stops24h 02m

Seattle/Tacoma Intl

Mon 23/3

21:05-18:20

1 stop14h 15m

£548

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 19/1

05:55-15:40

2 stops17h 45m

Seattle/Tacoma Intl

Mon 2/2

17:40-11:25

3 stops33h 45m

£551

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 19/1

05:55-15:40

2 stops17h 45m

Seattle/Tacoma Intl

Mon 2/2

17:40-11:25

3 stops33h 45m

£551

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 19/1

05:55-15:40

2 stops17h 45m

Seattle/Tacoma Intl

Mon 2/2

17:40-11:25

3 stops33h 45m

£552

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 8/5

22:00-20:28

3 stops30h 28m

Seattle/Tacoma Intl

Sun 24/5

07:05-14:15

3 stops23h 10m

£568

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 5/5

22:00-20:28

3 stops30h 28m

Seattle/Tacoma Intl

Thu 21/5

07:05-23:20

3 stops32h 15m

£569

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 7/5

06:30-20:28

3 stops21h 58m

Seattle/Tacoma Intl

Mon 11/5

19:00-20:55

2 stops17h 55m

£577

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 1/5

22:00-20:28

3 stops30h 28m

Seattle/Tacoma Intl

Sat 9/5

19:00-21:35

2 stops18h 35m

£591

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 19/3

08:30-00:42

2 stops23h 12m

Seattle/Tacoma Intl

Mon 23/3

21:05-18:20

1 stop14h 15m

£592

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Stansted Airport to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Seattle?

According to our data, Wednesday is the cheapest day to fly to Seattle from London Stansted Airport. The lowest ticket price found for a Wednesday departure recently was £600. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Sunday is £690.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is in the evening. momondo users have found flights departing from London Stansted Airport to Seattle in the evening for as low as £535. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive, with an average ticket price of £635.

When to book flights from London Stansted Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Stansted Airport to Seattle (STN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Seattle

Fastest flight time	16h 30m
Direct flights	None

The fastest flight from London Stansted Airport to Seattle takes 16h 30m

There are no direct flights from London Stansted Airport to Seattle. There are no popular flight routes from London Stansted Airport to Seattle.

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How far is London Stansted to Seattle/Tacoma Intl by plane?
A flight from London Stansted to Seattle/Tacoma Intl will travel around 4769.5 mi. Flights usually cover this in 14h 20m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London Stansted Airport to Seattle/Tacoma Intl Airport?
Prices for flights from London Stansted Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from London Stansted Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Fife

Renton

SeaTac

Why use momondo?

Why should I use momondo to find a flight deal from London to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from London to Seattle with flexible booking policies on momondo?

All flight searches from London to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Seattle?

momondo helps you find the best flight between London and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.