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

Prices for flights from Seattle/Tacoma Intl Airport to London Stansted Airport are updated daily.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to London Stansted Airport.

What documentation or ID do you need to fly to London Stansted Airport?

The required travel and health documents for your London Stansted Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Stansted Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£306 Cheap Flights from Seattle to London Stansted Airport in 2026

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Find the cheapest flights from Seattle to London

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:00 - 22:55

SEA

STN

19h 55m

2 stops

07:00 - 17:55

STN

SEA

18h 55m

2 stops

£504Multiple Airlines

Thu, 4 Jun - Thu, 11 Jun

19:00 - 00:50

SEA

STN

21h 50m

2 stops

22:00 - 10:05

STN

SEA

44h 05m

3 stops

£505Multiple Airlines

Fri, 8 May - Mon, 11 May

15:40 - 00:20

SEA

STN

24h 40m

2 stops

22:00 - 21:07

STN

SEA

31h 07m

3 stops

£507Multiple Airlines

Mon, 8 Jun - Wed, 17 Jun

15:40 - 18:50

SEA

STN

19h 10m

2 stops

06:30 - 09:40

STN

SEA

35h 10m

3 stops

£512Multiple Airlines

Mon, 4 May - Wed, 6 May

19:00 - 00:30

SEA

STN

21h 30m

2 stops

06:30 - 09:40

STN

SEA

35h 10m

3 stops

£515Multiple Airlines

Thu, 30 Apr - Mon, 4 May

19:00 - 00:30

SEA

STN

21h 30m

2 stops

06:30 - 09:40

STN

SEA

35h 10m

3 stops

£519Multiple Airlines

Thu, 30 Apr - Mon, 4 May

15:40 - 00:50

SEA

STN

25h 10m

2 stops

06:35 - 10:08

STN

SEA

35h 33m

3 stops

£521Multiple Airlines

Fri, 5 Jun - Fri, 12 Jun

15:40 - 00:10

SEA

STN

24h 30m

2 stops

22:45 - 09:40

STN

SEA

42h 55m

3 stops

£524Multiple Airlines

Tue, 5 May - Wed, 20 May

19:00 - 00:50

SEA

STN

21h 50m

2 stops

22:00 - 21:08

STN

SEA

31h 08m

2 stops

£527Multiple Airlines

Fri, 8 May - Wed, 27 May

15:40 - 00:10

SEA

STN

24h 30m

2 stops

06:35 - 09:40

STN

SEA

35h 05m

3 stops

£530Multiple Airlines

Tue, 5 May - Sat, 9 May

Turkish Airlines flights from Seattle to London Stansted Airport

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

Turkish Airlines

3 May

SEA19:10Seattle/Tacoma Intl

19h 00m

1 stop

STN22:10London Stansted

12 May

STN06:55London Stansted

18h 20m

1 stop

SEA17:15Seattle/Tacoma Intl

£541

Turkish Airlines

27 Apr

SEA19:10Seattle/Tacoma Intl

37h 40m

1 stop

STN16:50London Stansted

6 May

STN17:45London Stansted

31h 30m

1 stop

SEA17:15Seattle/Tacoma Intl

£545

Turkish Airlines

5 May

SEA19:10Seattle/Tacoma Intl

37h 30m

1 stop

STN16:40London Stansted

12 May

STN17:35London Stansted

31h 40m

1 stop

SEA17:15Seattle/Tacoma Intl

£546

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 4/6

19:00-22:55

2 stops19h 55m

London Stansted

Thu 11/6

07:00-17:55

2 stops18h 55m

£504

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 8/5

19:00-00:50

2 stops21h 50m

London Stansted

Mon 11/5

22:00-10:05

3 stops44h 05m

£505

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 8/6

15:40-00:20

2 stops24h 40m

London Stansted

Wed 17/6

22:00-21:07

3 stops31h 07m

£507

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 4/5

15:40-18:50

2 stops19h 10m

London Stansted

Wed 6/5

06:30-09:40

3 stops35h 10m

£512

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 30/4

19:00-00:30

2 stops21h 30m

London Stansted

Mon 4/5

06:30-09:40

3 stops35h 10m

£515

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 30/4

19:00-00:30

2 stops21h 30m

London Stansted

Mon 4/5

06:30-09:40

3 stops35h 10m

£519

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 5/6

15:40-00:50

2 stops25h 10m

London Stansted

Fri 12/6

06:35-10:08

3 stops35h 33m

£521

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 5/5

15:40-00:10

2 stops24h 30m

London Stansted

Wed 20/5

22:45-09:40

3 stops42h 55m

£524

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 8/5

19:00-00:50

2 stops21h 50m

London Stansted

Wed 27/5

22:00-21:08

2 stops31h 08m

£527

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 5/5

15:40-00:10

2 stops24h 30m

London Stansted

Sat 9/5

06:35-09:40

3 stops35h 05m

£530

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 Seattle to London Stansted Airport

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 airline that flies from Seattle/Tacoma Intl to London Stansted?

Turkish Airlines is the most popular carrier operating from Seattle/Tacoma Intl to London Stansted

When to book flights from Seattle to London Stansted Airport

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

Estimated return price

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

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

Fastest flight time	15h 50m
Direct flights	None

The fastest flight from Seattle to London Stansted Airport takes 15h 50m

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

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Frequently asked questions about flying from Seattle to London Stansted Airport

How far is Seattle/Tacoma Intl to London Stansted by plane?
The straight-line distance from Seattle/Tacoma Intl to London Stansted is 4769.5 mi. 15h 50m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London Stansted Airport?
Prices for flights from Seattle/Tacoma Intl Airport to London Stansted Airport are updated daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to London Stansted Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to London Stansted Airport.
What documentation or ID do you need to fly to London Stansted Airport?
The required travel and health documents for your London Stansted Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Stansted Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Eastbourne

Milton Keynes

Luton

Gatwick

Slough

Maidstone

Wembley

Southend-on-Sea

Ipswich

Canterbury

Ilford

Guildford

Hayes

Dover

Chelmsford

Folkestone

Bedford

Ramsgate

Chichester

Harlow

Why use momondo?

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

Finding the right flight to London from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

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

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

Once you have performed a search for Seattle to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.