Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to London from £265

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to London departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:05 - 17:50SEA-STN
13h 45m1 stop
Multiple Airlines Logo
06:30 - 18:20STN-SEA
19h 50m1 stop
£404Multiple Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Multiple Airlines Logo
14:35 - 20:35SEA-STN
22h 00m2 stops
Multiple Airlines Logo
05:55 - 17:00STN-SEA
19h 05m2 stops
£410Multiple Airlines
Find Deal
Fri, 30 Jan - Sun, 8 Feb
Multiple Airlines Logo
20:05 - 17:50SEA-STN
13h 45m1 stop
Multiple Airlines Logo
06:30 - 18:20STN-SEA
19h 50m1 stop
£412Multiple Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Multiple Airlines Logo
20:05 - 18:20SEA-STN
14h 15m1 stop
Multiple Airlines Logo
06:30 - 18:20STN-SEA
19h 50m1 stop
£416Multiple Airlines
Find Deal
Mon, 1 Dec - Sun, 7 Dec
Multiple Airlines Logo
14:35 - 17:50SEA-STN
19h 15m2 stops
Multiple Airlines Logo
06:30 - 17:00STN-SEA
18h 30m2 stops
£419Multiple Airlines
Find Deal
Wed, 3 Dec - Wed, 10 Dec
Multiple Airlines Logo
10:05 - 19:45SEA-STN
25h 40m3 stops
Multiple Airlines Logo
16:20 - 12:10STN-SEA
27h 50m2 stops
£443Multiple Airlines
Find Deal
Fri, 16 Jan - Fri, 23 Jan
Multiple Airlines Logo
14:35 - 23:05SEA-STN
24h 30m2 stops
Multiple Airlines Logo
06:10 - 17:00STN-SEA
18h 50m2 stops
£445Multiple Airlines
Find Deal
Fri, 16 Jan - Fri, 23 Jan
Multiple Airlines Logo
08:10 - 20:55SEA-STN
28h 45m3 stops
Multiple Airlines Logo
21:20 - 12:10STN-SEA
22h 50m2 stops
£447Multiple Airlines
Find Deal
Mon, 8 Dec - Mon, 15 Dec
Turkish Airlines Logo
20:00 - 22:15SEA-STN
19h 15m1 stop
Turkish Airlines Logo
06:15 - 17:15STN-SEA
19h 00m1 stop
£526Turkish Airlines
Find Deal
Wed, 25 Mar - Wed, 8 Apr
Turkish Airlines Logo
20:00 - 22:15SEA-STN
19h 15m1 stop
Turkish Airlines Logo
17:45 - 17:15STN-SEA
31h 30m1 stop
£542Turkish Airlines
Find Deal
Wed, 25 Mar - Wed, 8 Apr

Turkish Airlines flights from Seattle to London Stansted Airport

Our best Turkish Airlines deals on Seattle to London Stansted Airport flight tickets
Turkish Airlines
25 Mar
SEA20:00Seattle/Tacoma Intl
19h 15m
1 stop
STN22:15London Stansted
8 Apr
STN06:15London Stansted
19h 00m
1 stop
SEA17:15Seattle/Tacoma Intl
£526
Find similar
Turkish Airlines
25 Mar
SEA20:00Seattle/Tacoma Intl
19h 15m
1 stop
STN22:15London Stansted
8 Apr
STN17:45London Stansted
31h 30m
1 stop
SEA17:15Seattle/Tacoma Intl
£542
Find similar
Turkish Airlines
7 Apr
SEA19:10Seattle/Tacoma Intl
37h 40m
1 stop
STN16:50London Stansted
21 Apr
STN17:45London Stansted
31h 30m
1 stop
SEA17:15Seattle/Tacoma Intl
£546
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to London Stansted Airport 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, momondo users made 279,928 searches. Data last updated 11 November 2025.
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

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 3/12

20:05-17:50

1 stop13h 45m

London Stansted

Wed 10/12

06:30-18:20

1 stop19h 50m

£404

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 30/1

14:35-20:35

2 stops22h 00m

London Stansted

Sun 8/2

05:55-17:00

2 stops19h 05m

£410

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 3/12

20:05-17:50

1 stop13h 45m

London Stansted

Wed 10/12

06:30-18:20

1 stop19h 50m

£412

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 1/12

20:05-18:20

1 stop14h 15m

London Stansted

Sun 7/12

06:30-18:20

1 stop19h 50m

£416

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 3/12

14:35-17:50

2 stops19h 15m

London Stansted

Wed 10/12

06:30-17:00

2 stops18h 30m

£419

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 16/1

10:05-19:45

3 stops25h 40m

London Stansted

Fri 23/1

16:20-12:10

2 stops27h 50m

£443

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 16/1

14:35-23:05

2 stops24h 30m

London Stansted

Fri 23/1

06:10-17:00

2 stops18h 50m

£445

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 8/12

08:10-20:55

3 stops28h 45m

London Stansted

Mon 15/12

21:20-12:10

2 stops22h 50m

£447

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 25/3

20:00-22:15

1 stop19h 15m

London Stansted

Wed 8/4

06:15-17:15

1 stop19h 00m

£526

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 25/3

20:00-22:15

1 stop19h 15m

London Stansted

Wed 8/4

17:45-17:15

1 stop31h 30m

£542

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

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

Direct flights

None
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

  • 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. 11h 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Canterbury
Southend-on-Sea
Ipswich
Ilford
Guildford
Dover
Colchester
Chelmsford
Hayes
Worthing
Ramsgate
Dartford
Bedford
Winchester

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.

An easier way to manage your London Stansted Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 11/12
Thu 18/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London