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.

£254 Cheap Flights from Seattle to London Stansted Airport in 2026/27

Find the cheapest flights from Seattle to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

14:35 - 18:05SEA Seattle/Tacoma Intl-STN London Stansted

19h 30m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£552Multiple Airlines

Tue, 1 Dec - Sun, 6 Dec

14:35 - 15:50SEA Seattle/Tacoma Intl-STN London Stansted

17h 15m2 stops Reykjavik Keflavik Intl Dublin

07:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

17h 45m2 stops Dublin Reykjavik Keflavik Intl

£553Multiple Airlines

Tue, 17 Nov - Tue, 24 Nov

14:50 - 17:30SEA Seattle/Tacoma Intl-STN London Stansted

18h 40m2 stops Munich Franz Josef Strauss Stockholm Arlanda

21:00 - 20:59STN London Stansted-SEA Seattle/Tacoma Intl

31h 59m3 stops Stockholm Arlanda Frankfurt am Main Toronto Pearson Intl

£555Multiple Airlines

Sun, 14 Feb - Sun, 28 Feb

14:35 - 21:55SEA Seattle/Tacoma Intl-STN London Stansted

23h 20m2 stops Reykjavik Keflavik Intl Dublin

07:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

17h 45m2 stops Dublin Reykjavik Keflavik Intl

£556Multiple Airlines

Mon, 1 Feb - Wed, 10 Feb

08:40 - 21:55SEA Seattle/Tacoma Intl-STN London Stansted

29h 15m3 stops Vancouver Intl Toronto Pearson Intl Kastrup Copenhagen

18:45 - 18:22STN London Stansted-SEA Seattle/Tacoma Intl

31h 37m3 stops Kastrup Copenhagen Frankfurt am Main Vancouver Intl

£560Multiple Airlines

Thu, 3 Dec - Sun, 6 Dec

08:40 - 21:55SEA Seattle/Tacoma Intl-STN London Stansted

29h 15m3 stops Vancouver Intl Toronto Pearson Intl Kastrup Copenhagen

18:45 - 12:00STN London Stansted-SEA Seattle/Tacoma Intl

25h 15m2 stops Kastrup Copenhagen Frankfurt am Main

£562Multiple Airlines

Thu, 3 Dec - Sun, 6 Dec

13:50 - 17:50SEA Seattle/Tacoma Intl-STN London Stansted

20h 00m2 stops Frankfurt am Main Kastrup Copenhagen

18:50 - 12:00STN London Stansted-SEA Seattle/Tacoma Intl

25h 10m2 stops Kastrup Copenhagen Frankfurt am Main

£563Multiple Airlines

Mon, 16 Nov - Tue, 24 Nov

14:35 - 23:20SEA Seattle/Tacoma Intl-STN London Stansted

24h 45m2 stops Reykjavik Keflavik Intl Dublin

07:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

17h 45m2 stops Dublin Reykjavik Keflavik Intl

£565Multiple Airlines

Wed, 27 Jan - Wed, 3 Feb

14:35 - 23:45SEA Seattle/Tacoma Intl-STN London Stansted

25h 10m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£565Multiple Airlines

Wed, 25 Nov - Tue, 1 Dec

14:35 - 23:20SEA Seattle/Tacoma Intl-STN London Stansted

24h 45m2 stops Reykjavik Keflavik Intl Dublin

07:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

17h 45m2 stops Dublin Reykjavik Keflavik Intl

£566Multiple Airlines

Wed, 10 Feb - Tue, 16 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

14:35 - 15:40SEA Seattle/Tacoma Intl-STN London Stansted

17h 05m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

07:55 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

17h 05m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

£600Multiple Airlines

Sun, 8 Nov - Sat, 14 Nov

14:35 - 14:55SEA Seattle/Tacoma Intl-STN London Stansted

16h 20m1 stop Reykjavik Keflavik Intl

08:05 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 55m1 stop Reykjavik Keflavik Intl

£607Multiple Airlines

Sun, 8 Nov - Thu, 12 Nov

14:35 - 15:40SEA Seattle/Tacoma Intl-STN London Stansted

17h 05m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

18:50 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

30h 10m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£615Multiple Airlines

Sun, 8 Nov - Wed, 11 Nov

14:35 - 21:35SEA Seattle/Tacoma Intl-STN London Stansted

23h 00m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

07:20 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

17h 40m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£619Multiple Airlines

Sun, 8 Nov - Thu, 3 Dec

14:35 - 15:40SEA Seattle/Tacoma Intl-STN London Stansted

17h 05m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

19:45 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

29h 15m3 stops Cologne Köln/Bonn Stockholm Arlanda Reykjavik Keflavik Intl

£620Multiple Airlines

Sun, 8 Nov - Wed, 11 Nov

14:35 - 14:55SEA Seattle/Tacoma Intl-STN London Stansted

16h 20m1 stop Reykjavik Keflavik Intl

08:05 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 55m1 stop Reykjavik Keflavik Intl

£623Multiple Airlines

Sun, 8 Nov - Thu, 12 Nov

14:50 - 18:35SEA Seattle/Tacoma Intl-STN London Stansted

19h 45m2 stops Munich Franz Josef Strauss Stockholm Arlanda

21:00 - 20:59STN London Stansted-SEA Seattle/Tacoma Intl

31h 59m3 stops Stockholm Arlanda Frankfurt am Main Toronto Pearson Intl

£648Multiple Airlines

Wed, 4 Nov - Sun, 8 Nov

14:35 - 21:35SEA Seattle/Tacoma Intl-STN London Stansted

23h 00m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£654Multiple Airlines

Sun, 8 Nov - Wed, 2 Dec

14:35 - 21:55SEA Seattle/Tacoma Intl-STN London Stansted

23h 20m2 stops Reykjavik Keflavik Intl Dublin

22:20 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

26h 40m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£709Multiple Airlines

Mon, 9 Nov - Fri, 20 Nov

13:50 - 23:20SEA Seattle/Tacoma Intl-STN London Stansted

25h 30m2 stops Frankfurt am Main Dublin

20:50 - 12:00STN London Stansted-SEA Seattle/Tacoma Intl

23h 10m2 stops Dublin Frankfurt am Main

£712Multiple Airlines

Wed, 4 Nov - Tue, 17 Nov

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Turkish Airlines flights from Seattle to London Stansted Airport

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

Turkish Airlines

16 Nov

SEA19:05Seattle/Tacoma Intl

30h 50m

1 stop

STN09:55London Stansted

4 Dec

STN10:55London Stansted

38h 15m

1 stop

SEA17:10Seattle/Tacoma Intl

£655

Turkish Airlines

16 Nov

SEA19:05Seattle/Tacoma Intl

30h 50m

1 stop

STN09:55London Stansted

2 Dec

STN10:55London Stansted

38h 15m

1 stop

SEA17:10Seattle/Tacoma Intl

£692

Turkish Airlines

16 Nov

SEA19:05Seattle/Tacoma Intl

30h 50m

1 stop

STN09:55London Stansted

22 Nov

STN17:20London Stansted

31h 50m

1 stop

SEA17:10Seattle/Tacoma Intl

£699

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

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 1/12

14:35-18:05

2 stops19h 30m

London Stansted

Sun 6/12

08:15-17:00

2 stops16h 45m

£552

Fastest return journey

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 17/11

14:35-15:50

2 stops17h 15m

London Stansted

Tue 24/11

07:15-17:00

2 stops17h 45m

£553

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 14/2

14:50-17:30

2 stops18h 40m

London Stansted

Sun 28/2

21:00-20:59

3 stops31h 59m

£555

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 1/2

14:35-21:55

2 stops23h 20m

London Stansted

Wed 10/2

07:15-17:00

2 stops17h 45m

£556

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 3/12

08:40-21:55

3 stops29h 15m

London Stansted

Sun 6/12

18:45-18:22

3 stops31h 37m

£560

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 3/12

08:40-21:55

3 stops29h 15m

London Stansted

Sun 6/12

18:45-12:00

2 stops25h 15m

£562

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 16/11

13:50-17:50

2 stops20h 00m

London Stansted

Tue 24/11

18:50-12:00

2 stops25h 10m

£563

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 27/1

14:35-23:20

2 stops24h 45m

London Stansted

Wed 3/2

07:15-17:00

2 stops17h 45m

£565

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 25/11

14:35-23:45

2 stops25h 10m

London Stansted

Tue 1/12

08:15-17:00

2 stops16h 45m

£565

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 10/2

14:35-23:20

2 stops24h 45m

London Stansted

Tue 16/2

07:15-17:00

2 stops17h 45m

£566

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

Best price found	£254
Fastest flight time	15h 30m
Direct flights	None

The best one-way flight to London Stansted Airport from Seattle in the past 72 hours is £254. The best return flight deal from Seattle to London Stansted Airport found on momondo in the last 72 hours is £552.

The fastest flight from Seattle to London Stansted Airport takes 15h 30m

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

Search flight deals

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 30m 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

Wembley

Gatwick

Milton Keynes

Southend-on-Sea

Luton

Ipswich

Slough

Maidstone

Folkestone

Hastings

Ilford

Canterbury

Colchester

Chichester

Hayes

Bedford

Guildford

Winchester

Worthing

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.