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Cheap flights from Seattle to London from $309

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
3:55 pm - 8:30 pmSEA  Seattle/Tacoma Intl-STN London Stansted
20h 35m2 stops Kastrup Copenhagen Stockholm Arlanda
Multiple Airlines Logo
8:10 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
13h 35m1 stop Kastrup Copenhagen
$745Multiple Airlines
Fri, Sep 25 - Fri, Oct 2
Multiple Airlines Logo
3:55 pm - 2:35 pmSEA  Seattle/Tacoma Intl-STN London Stansted
14h 40m1 stop Kastrup Copenhagen
Multiple Airlines Logo
7:10 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
14h 35m1 stop Kastrup Copenhagen
$747Multiple Airlines
Tue, Sep 15 - Tue, Sep 29
Multiple Airlines Logo
2:30 pm - 9:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
23h 10m2 stops Los Angeles Los Angeles Kastrup Copenhagen
Multiple Airlines Logo
7:05 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
14h 40m1 stop Kastrup Copenhagen
$748Multiple Airlines
Wed, Sep 30 - Sun, Oct 4
Multiple Airlines Logo
3:55 pm - 6:45 amSEA  Seattle/Tacoma Intl-STN London Stansted
30h 50m1 stop Kastrup Copenhagen
Multiple Airlines Logo
6:25 pm - 6:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
30h 35m2 stops Stockholm Vasteras/Hasslo Reykjavik Keflavik Intl
$749Multiple Airlines
Sun, Oct 11 - Sun, Oct 25
Multiple Airlines Logo
3:55 pm - 3:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 45m1 stop Kastrup Copenhagen
Multiple Airlines Logo
7:05 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
14h 40m1 stop Kastrup Copenhagen
$750Multiple Airlines
Sun, Sep 27 - Sun, Oct 4
Multiple Airlines Logo
7:00 pm - 8:30 pmSEA  Seattle/Tacoma Intl-STN London Stansted
17h 30m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
7:10 am - 5:55 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
18h 45m2 stops Glasgow Intl Reykjavik Keflavik Intl
$750Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
Multiple Airlines Logo
8:00 am - 5:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
25h 15m3 stops Toronto Pearson Intl Brussels Bruxelles-National Stockholm Arlanda
Multiple Airlines Logo
6:55 pm - 9:04 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
34h 09m3 stops Stockholm Arlanda Brussels Bruxelles-National Toronto Pearson Intl
$751Multiple Airlines
Sun, Sep 27 - Sun, Oct 4
Multiple Airlines Logo
7:00 pm - 8:30 pmSEA  Seattle/Tacoma Intl-STN London Stansted
17h 30m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
6:10 am - 5:55 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
19h 45m2 stops Stockholm Arlanda Reykjavik Keflavik Intl
$752Multiple Airlines
Fri, Sep 25 - Fri, Oct 2
Multiple Airlines Logo
8:00 am - 5:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
25h 15m3 stops Toronto Pearson Intl Brussels Bruxelles-National Stockholm Arlanda
Multiple Airlines Logo
6:55 pm - 9:04 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
34h 09m3 stops Stockholm Arlanda Brussels Bruxelles-National Toronto Pearson Intl
$752Multiple Airlines
Sun, Sep 27 - Sun, Oct 4
Multiple Airlines Logo
2:30 pm - 9:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
23h 10m2 stops Los Angeles Los Angeles Kastrup Copenhagen
Multiple Airlines Logo
7:05 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
14h 40m1 stop Kastrup Copenhagen
$755Multiple Airlines
Wed, Sep 30 - Sun, Oct 4

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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
Sep 13
SEA7:15 pmSeattle/Tacoma Intl
37h 25m
1 stop
STN4:40 pmLondon Stansted
Nov 25
STN10:55 amLondon Stansted
38h 15m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$878
Turkish Airlines
Sep 13
SEA7:15 pmSeattle/Tacoma Intl
37h 25m
1 stop
STN4:40 pmLondon Stansted
Nov 25
STN10:55 amLondon Stansted
38h 15m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$881

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

Fri 9/25

3:55 pm-8:30 pm

2 stops20h 35m

London Stansted

Fri 10/2

8:10 am-1:45 pm

1 stop13h 35m

$745
Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-2:35 pm

1 stop14h 40m

London Stansted

Tue 9/29

7:10 am-1:45 pm

1 stop14h 35m

$747

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 9/30

2:30 pm-9:40 pm

2 stops23h 10m

London Stansted

Sun 10/4

7:05 am-1:45 pm

1 stop14h 40m

$748

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 10/11

3:55 pm-6:45 am

1 stop30h 50m

London Stansted

Sun 10/25

6:25 pm-6:00 pm

2 stops30h 35m

$749

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 9/27

3:55 pm-3:40 pm

1 stop15h 45m

London Stansted

Sun 10/4

7:05 am-1:45 pm

1 stop14h 40m

$750

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 10/13

7:00 pm-8:30 pm

2 stops17h 30m

London Stansted

Tue 10/20

7:10 am-5:55 pm

2 stops18h 45m

$750

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 9/27

8:00 am-5:15 pm

3 stops25h 15m

London Stansted

Sun 10/4

6:55 pm-9:04 pm

3 stops34h 09m

$751

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Fri 9/25

7:00 pm-8:30 pm

2 stops17h 30m

London Stansted

Fri 10/2

6:10 am-5:55 pm

2 stops19h 45m

$752

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 9/27

8:00 am-5:15 pm

3 stops25h 15m

London Stansted

Sun 10/4

6:55 pm-9:04 pm

3 stops34h 09m

$752

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 9/30

2:30 pm-9:40 pm

2 stops23h 10m

London Stansted

Sun 10/4

7:05 am-1:45 pm

1 stop14h 40m

$755

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?

Lufthansa 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

$309

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 $309. The best round-trip flight deal from Seattle to London Stansted Airport found on momondo in the last 72 hours is $745.
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
Hayes
Wembley
Luton
Croydon
Dover
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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