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Cheap flights from Seattle to London from $330

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 - 6:05 pmSEA  Seattle/Tacoma Intl-STN London Stansted
19h 30m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
8:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$740Multiple Airlines
Tue, Dec 1 - Sun, Dec 6
Multiple Airlines Logo
2:50 pm - 5:30 pmSEA  Seattle/Tacoma Intl-STN London Stansted
18h 40m2 stops Munich Franz Josef Strauss Stockholm Arlanda
Multiple Airlines Logo
9:00 pm - 8:59 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
31h 59m3 stops Stockholm Arlanda Frankfurt am Main Toronto Pearson Intl
$744Multiple Airlines
Sun, Feb 14 - Sun, Feb 28
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
7:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 45m2 stops Dublin Reykjavik Keflavik Intl
$746Multiple Airlines
Mon, Feb 1 - Wed, Feb 10
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
8:55 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 05m2 stops Dublin Reykjavik Keflavik Intl
$750Multiple Airlines
Tue, Jan 12 - Tue, Jan 19
Multiple Airlines Logo
8:40 am - 9:55 pmSEA  Seattle/Tacoma Intl-STN London Stansted
29h 15m3 stops Vancouver Intl Toronto Pearson Intl Kastrup Copenhagen
Multiple Airlines Logo
6:45 pm - 6:22 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
31h 37m3 stops Kastrup Copenhagen Frankfurt am Main Vancouver Intl
$751Multiple Airlines
Thu, Dec 3 - Sun, Dec 6
Multiple Airlines Logo
8:40 am - 9:55 pmSEA  Seattle/Tacoma Intl-STN London Stansted
29h 15m3 stops Vancouver Intl Toronto Pearson Intl Kastrup Copenhagen
Multiple Airlines Logo
6:45 pm - 12:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
25h 15m2 stops Kastrup Copenhagen Frankfurt am Main
$754Multiple Airlines
Thu, Dec 3 - Sun, Dec 6
Multiple Airlines Logo
2:35 pm - 11:20 pmSEA  Seattle/Tacoma Intl-STN London Stansted
24h 45m2 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
$759Multiple Airlines
Wed, Feb 10 - Tue, Feb 16
Multiple Airlines Logo
2:35 pm - 11:20 pmSEA  Seattle/Tacoma Intl-STN London Stansted
24h 45m2 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
$761Multiple Airlines
Wed, Jan 20 - Wed, Jan 27
Multiple Airlines Logo
2:35 pm - 3:05 pmSEA  Seattle/Tacoma Intl-STN London Stansted
16h 30m2 stops Reykjavik Keflavik Intl Oslo Gardermoen
Multiple Airlines Logo
8:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$763Multiple Airlines
Mon, Dec 7 - Wed, Jan 20
Multiple Airlines Logo
2:35 pm - 9:55 pmSEA  Seattle/Tacoma Intl-STN London Stansted
23h 20m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
8:15 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$764Multiple Airlines
Thu, Dec 3 - Wed, Dec 9

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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
Nov 16
SEA7:05 pmSeattle/Tacoma Intl
30h 50m
1 stop
STN9:55 amLondon Stansted
Dec 4
STN10:55 amLondon Stansted
38h 15m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$878
Turkish Airlines
Nov 16
SEA7:05 pmSeattle/Tacoma Intl
30h 50m
1 stop
STN9:55 amLondon Stansted
Dec 2
STN10:55 amLondon Stansted
38h 15m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$928
Turkish Airlines
Nov 16
SEA7:05 pmSeattle/Tacoma Intl
30h 50m
1 stop
STN9:55 amLondon Stansted
Nov 22
STN5:20 pmLondon Stansted
31h 50m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$938

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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Route

Depart

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Price

Cheapest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 12/1

2:35 pm-6:05 pm

2 stops19h 30m

London Stansted

Sun 12/6

8:15 am-5:00 pm

2 stops16h 45m

$740

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 2/14

2:50 pm-5:30 pm

2 stops18h 40m

London Stansted

Sun 2/28

9:00 pm-8:59 pm

3 stops31h 59m

$744

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 2/1

2:35 pm-9:55 pm

2 stops23h 20m

London Stansted

Wed 2/10

7:15 am-5:00 pm

2 stops17h 45m

$746

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 1/12

2:35 pm-8:15 pm

2 stops21h 40m

London Stansted

Tue 1/19

8:55 am-5:00 pm

2 stops16h 05m

$750

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 12/3

8:40 am-9:55 pm

3 stops29h 15m

London Stansted

Sun 12/6

6:45 pm-6:22 pm

3 stops31h 37m

$751

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 12/3

8:40 am-9:55 pm

3 stops29h 15m

London Stansted

Sun 12/6

6:45 pm-12:00 pm

2 stops25h 15m

$754

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 2/10

2:35 pm-11:20 pm

2 stops24h 45m

London Stansted

Tue 2/16

7:15 am-5:00 pm

2 stops17h 45m

$759

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 1/20

2:35 pm-11:20 pm

2 stops24h 45m

London Stansted

Wed 1/27

7:15 am-5:00 pm

2 stops17h 45m

$761
Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 12/7

2:35 pm-3:05 pm

2 stops16h 30m

London Stansted

Wed 1/20

8:15 am-5:00 pm

2 stops16h 45m

$763

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 12/3

2:35 pm-9:55 pm

2 stops23h 20m

London Stansted

Wed 12/9

8:15 am-5:00 pm

2 stops16h 45m

$764

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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

$330

Fastest flight time

14h 40m

Direct flights

None
The best one-way flight to London Stansted Airport from Seattle in the past 72 hours is $330. The best round-trip flight deal from Seattle to London Stansted Airport found on momondo in the last 72 hours is $740.
The fastest flight from Seattle to London Stansted Airport takes 14h 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 14h 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.

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
Kingston upon Thames
Watford
Richmond
Dover
Wembley
Crawley
Worthing
Harrow
Brentford
Canterbury
Hook
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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