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Cheap flights from Seattle to London from $321

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
3:40 pm - 6:30 pmSEA  Seattle/Tacoma Intl-STN London Stansted
18h 50m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
7:55 am - 6:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 05m2 stops Stockholm Arlanda Reykjavik Keflavik Intl
$764Multiple Airlines
Sat, Oct 17 - Sat, Oct 31
Multiple Airlines Logo
3:40 pm - 4:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
16h 35m1 stop Reykjavik Keflavik Intl
Multiple Airlines Logo
8:05 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 55m1 stop Reykjavik Keflavik Intl
$769Multiple Airlines
Sun, Oct 18 - Mon, Nov 2
Multiple Airlines Logo
3:35 pm - 9:55 pmSEA  Seattle/Tacoma Intl-STN London Stansted
23h 20m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
6:35 am - 6:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
18h 25m2 stops Dublin Reykjavik Keflavik Intl
$771Multiple Airlines
Mon, Oct 26 - Sat, Oct 31
Multiple Airlines Logo
3:40 pm - 6:50 pmSEA  Seattle/Tacoma Intl-STN London Stansted
19h 10m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
6:20 am - 8:40 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
22h 20m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$772Multiple Airlines
Mon, Oct 5 - Fri, Oct 16
Multiple Airlines Logo
3:40 pm - 4:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
16h 35m1 stop Reykjavik Keflavik Intl
Multiple Airlines Logo
8:05 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 55m1 stop Reykjavik Keflavik Intl
$775Multiple Airlines
Sun, Oct 18 - Mon, Nov 2
Multiple Airlines Logo
5:50 am - 12:55 pmSEA  Seattle/Tacoma Intl-STN London Stansted
23h 05m2 stops Vancouver Intl Dublin
Multiple Airlines Logo
6:35 am - 6:32 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
19h 57m2 stops Dublin Vancouver Intl
$780Multiple Airlines
Sat, Oct 10 - Sat, Oct 17
Multiple Airlines Logo
10:10 am - 9:35 pmSEA  Seattle/Tacoma Intl-STN London Stansted
27h 25m3 stops Vancouver Intl Munich Franz Josef Strauss Kastrup Copenhagen
Multiple Airlines Logo
10:20 pm - 8:59 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
30h 39m2 stops Kastrup Copenhagen Toronto Pearson Intl
$780Multiple Airlines
Sun, Nov 22 - Fri, Nov 27
Lufthansa Logo
6:50 pm - 5:10 pmSEA  Seattle/Tacoma Intl-STN London Stansted
14h 20m1 stop Munich Franz Josef Strauss
Lufthansa Logo
11:00 am - 4:59 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
13h 59m1 stop Munich Franz Josef Strauss
$781Lufthansa
Thu, Sep 24 - Wed, Oct 7
Multiple Airlines Logo
7:45 am - 6:25 pmSEA  Seattle/Tacoma Intl-STN London Stansted
26h 40m3 stops Toronto Pearson Intl Frankfurt am Main Oslo Gardermoen
Multiple Airlines Logo
1:55 pm - 1:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
31h 05m2 stops Oslo Gardermoen Munich Franz Josef Strauss
$781Multiple Airlines
Sat, Nov 21 - Sat, Nov 28
Multiple Airlines Logo
7:00 pm - 4:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
13h 15m1 stop Reykjavik Keflavik Intl
Multiple Airlines Logo
8:05 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
16h 55m1 stop Reykjavik Keflavik Intl
$782Multiple Airlines
Sun, Oct 18 - Mon, Nov 2

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Lufthansa flights from Seattle to London Stansted Airport

Our best Lufthansa deals on Seattle to London Stansted Airport flight tickets
Lufthansa
Sep 24
SEA6:50 pmSeattle/Tacoma Intl
14h 20m
1 stop
STN5:10 pmLondon Stansted
Oct 7
STN11:00 amLondon Stansted
13h 59m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$781
Lufthansa
Oct 1
SEA6:50 pmSeattle/Tacoma Intl
12h 50m
1 stop
STN3:40 pmLondon Stansted
Oct 5
STN4:25 pmLondon Stansted
32h 34m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$791
Lufthansa
Oct 1
SEA6:50 pmSeattle/Tacoma Intl
12h 50m
1 stop
STN3:40 pmLondon Stansted
Oct 5
STN4:25 pmLondon Stansted
32h 34m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$802

Turkish Airlines flights from Seattle to London Stansted Airport

Our best Turkish Airlines deals on Seattle to London Stansted Airport flight tickets
Turkish Airlines
Oct 5
SEA7:15 pmSeattle/Tacoma Intl
37h 35m
1 stop
STN4:50 pmLondon Stansted
Oct 21
STN5:45 pmLondon Stansted
31h 35m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$857
Turkish Airlines
Sep 26
SEA7:15 pmSeattle/Tacoma Intl
30h 40m
1 stop
STN9:55 amLondon Stansted
Oct 5
STN10:50 amLondon Stansted
38h 30m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$954
Turkish Airlines
Sep 26
SEA7:15 pmSeattle/Tacoma Intl
30h 40m
1 stop
STN9:55 amLondon Stansted
Oct 5
STN10:50 amLondon Stansted
38h 30m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$960

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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Price

Cheapest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sat 10/17

3:40 pm-6:30 pm

2 stops18h 50m

London Stansted

Sat 10/31

7:55 am-6:00 pm

2 stops17h 05m

$764

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 10/18

3:40 pm-4:15 pm

1 stop16h 35m

London Stansted

Mon 11/2

8:05 am-5:00 pm

1 stop16h 55m

$769

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 10/26

3:35 pm-9:55 pm

2 stops23h 20m

London Stansted

Sat 10/31

6:35 am-6:00 pm

2 stops18h 25m

$771

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-6:50 pm

2 stops19h 10m

London Stansted

Fri 10/16

6:20 am-8:40 pm

2 stops22h 20m

$772

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 10/18

3:40 pm-4:15 pm

1 stop16h 35m

London Stansted

Mon 11/2

8:05 am-5:00 pm

1 stop16h 55m

$775

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sat 10/10

5:50 am-12:55 pm

2 stops23h 05m

London Stansted

Sat 10/17

6:35 am-6:32 pm

2 stops19h 57m

$780

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 11/22

10:10 am-9:35 pm

3 stops27h 25m

London Stansted

Fri 11/27

10:20 pm-8:59 pm

2 stops30h 39m

$780
Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 9/24

6:50 pm-5:10 pm

1 stop14h 20m

London Stansted

Wed 10/7

11:00 am-4:59 pm

1 stop13h 59m

$781

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sat 11/21

7:45 am-6:25 pm

3 stops26h 40m

London Stansted

Sat 11/28

1:55 pm-1:00 pm

2 stops31h 05m

$781

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 10/18

7:00 pm-4:15 pm

1 stop13h 15m

London Stansted

Mon 11/2

8:05 am-5:00 pm

1 stop16h 55m

$782

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

$321

Fastest flight time

12h 45m

Direct flights

None
The best one-way flight to London Stansted Airport from Seattle in the past 72 hours is $321. The best round-trip flight deal from Seattle to London Stansted Airport found on momondo in the last 72 hours is $764.
The fastest flight from Seattle to London Stansted Airport takes 12h 45m
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 12h 45m, 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
Milton Keynes
Luton
Hayes
Wembley
Dover
Croydon
Richmond
Stansted
Kingston upon Thames
Harrow
Cobham
Watford
Slough
Eastbourne
Worthing
Hook
Uxbridge
Romford

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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