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Cheap flights from Seattle to London from $332

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:35 pm - 2:05 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 30m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
7:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 45m2 stops Dublin Reykjavik Keflavik Intl
$756Multiple Airlines
Mon, Nov 16 - Tue, Nov 24
Multiple Airlines Logo
2:35 pm - 8:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
21h 40m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
7:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 45m2 stops Dublin Reykjavik Keflavik Intl
$758Multiple Airlines
Tue, Nov 24 - Tue, Dec 1
Multiple Airlines Logo
2:35 pm - 3:10 pmSEA  Seattle/Tacoma Intl-STN London Stansted
16h 35m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
8:55 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 05m2 stops Dublin Reykjavik Keflavik Intl
$759Multiple Airlines
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
2:35 pm - 4:45 pmSEA  Seattle/Tacoma Intl-STN London Stansted
18h 10m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
7:45 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 15m2 stops Dublin Reykjavik Keflavik Intl
$760Multiple Airlines
Sun, Nov 8 - Fri, Nov 13
Multiple Airlines Logo
2:35 pm - 2:05 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 30m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
7:45 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 15m2 stops Dublin Reykjavik Keflavik Intl
$766Multiple Airlines
Mon, Nov 9 - Fri, Nov 13
Multiple Airlines Logo
2:35 pm - 11:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
24h 40m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
6:45 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
18h 15m2 stops Dublin Reykjavik Keflavik Intl
$768Multiple Airlines
Thu, Nov 12 - Thu, Nov 19
Multiple Airlines Logo
2:35 pm - 2:05 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 30m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
7:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 45m2 stops Dublin Reykjavik Keflavik Intl
$769Multiple Airlines
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
2:35 pm - 3:50 pmSEA  Seattle/Tacoma Intl-STN London Stansted
17h 15m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
7:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 45m2 stops Dublin Reykjavik Keflavik Intl
$770Multiple Airlines
Tue, Nov 17 - Tue, Nov 24
Multiple Airlines Logo
7:45 am - 6:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
26h 55m3 stops Toronto Pearson Intl Frankfurt am Main Oslo Gardermoen
Multiple Airlines Logo
9:50 am - 12:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
34h 10m3 stops Oslo Gardermoen Munich Franz Josef Strauss Frankfurt am Main
$773Multiple Airlines
Fri, Nov 13 - Fri, Nov 20
Multiple Airlines Logo
2:35 pm - 9:55 pmSEA  Seattle/Tacoma Intl-STN London Stansted
23h 20m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
6:35 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
18h 25m2 stops Dublin Reykjavik Keflavik Intl
$774Multiple Airlines
Mon, Nov 16 - Mon, Nov 23

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Turkish Airlines flights from Seattle to London Stansted Airport

Our best Turkish Airlines deals on Seattle to London Stansted Airport flight tickets
Turkish Airlines
Mar 18
SEA8:05 pmSeattle/Tacoma Intl
30h 50m
1 stop
STN9:55 amLondon Stansted
Mar 24
STN10:55 amLondon Stansted
38h 15m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
$875
Turkish Airlines
Jan 12
SEA7:05 pmSeattle/Tacoma Intl
37h 15m
1 stop
STN4:20 pmLondon Stansted
Jan 19
STN5:20 pmLondon Stansted
31h 50m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$876
Turkish Airlines
Jan 17
SEA7:05 pmSeattle/Tacoma Intl
37h 15m
1 stop
STN4:20 pmLondon Stansted
Feb 5
STN5:20 pmLondon Stansted
31h 50m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$877

momondo Fare Finder

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

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Depart

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Price

Cheapest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 11/16

2:35 pm-2:05 pm

2 stops15h 30m

London Stansted

Tue 11/24

7:15 am-5:00 pm

2 stops17h 45m

$756

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 11/24

2:35 pm-8:15 pm

2 stops21h 40m

London Stansted

Tue 12/1

7:15 am-5:00 pm

2 stops17h 45m

$758
Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 11/23

2:35 pm-3:10 pm

2 stops16h 35m

London Stansted

Tue 12/8

8:55 am-5:00 pm

2 stops16h 05m

$759

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 11/8

2:35 pm-4:45 pm

2 stops18h 10m

London Stansted

Fri 11/13

7:45 am-5:00 pm

2 stops17h 15m

$760

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 11/9

2:35 pm-2:05 pm

2 stops15h 30m

London Stansted

Fri 11/13

7:45 am-5:00 pm

2 stops17h 15m

$766

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 11/12

2:35 pm-11:15 pm

2 stops24h 40m

London Stansted

Thu 11/19

6:45 am-5:00 pm

2 stops18h 15m

$768

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 11/23

2:35 pm-2:05 pm

2 stops15h 30m

London Stansted

Tue 12/8

7:15 am-5:00 pm

2 stops17h 45m

$769

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 11/17

2:35 pm-3:50 pm

2 stops17h 15m

London Stansted

Tue 11/24

7:15 am-5:00 pm

2 stops17h 45m

$770

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Fri 11/13

7:45 am-6:40 pm

3 stops26h 55m

London Stansted

Fri 11/20

9:50 am-12:00 pm

3 stops34h 10m

$773

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 11/16

2:35 pm-9:55 pm

2 stops23h 20m

London Stansted

Mon 11/23

6:35 am-5:00 pm

2 stops18h 25m

$774

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 round-trip 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

$332

Fastest flight time

16h 40m

Direct flights

None
The best one-way flight to London Stansted Airport from Seattle in the past 72 hours is $332. The best round-trip flight deal from Seattle to London Stansted Airport found on momondo in the last 72 hours is $756.
The fastest flight from Seattle to London Stansted Airport takes 16h 40m
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?

    There are 4769.5 mi between Seattle/Tacoma Intl and London Stansted. Flights usually cover this in 16h 40m, depending on flying conditions and air traffic around both airports.

  • 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?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 travel and health documents you'll need for your trip to London Stansted Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Stansted Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Seattle to London Stansted Airport

  • How do I get Price Alerts for flights from Seattle to London Stansted Airport?

    Confirm your travel details to search for the latest offers for flights from Seattle to London Stansted Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to London Stansted Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Croydon
Hayes
Milton Keynes
Luton
Stansted
Dover
Kingston upon Thames
Wembley
Richmond
Watford
Worthing
Harrow
Slough
Hook
Ilford
Canterbury
Dunstable
Eastbourne

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Seattle.

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?

Price alerts on flights to London from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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