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Cheap flights from Seattle to London from $335

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
7:00 pm - 9:10 pmSEA  Seattle/Tacoma Intl-STN London Stansted
18h 10m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
6:15 am - 6:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
18h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$775Multiple Airlines
Fri, Oct 23 - Sat, Oct 31
Multiple Airlines Logo
7:00 pm - 12:30 amSEA  Seattle/Tacoma Intl-STN London Stansted
21h 30m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
Multiple Airlines Logo
7:20 am - 6:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 40m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
$776Multiple Airlines
Thu, Oct 22 - Thu, Oct 29
Multiple Airlines Logo
7:45 am - 9:35 pmSEA  Seattle/Tacoma Intl-STN London Stansted
29h 50m3 stops Toronto Pearson Intl Munich Franz Josef Strauss Kastrup Copenhagen
Multiple Airlines Logo
7:10 pm - 1:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
25h 50m2 stops Kastrup Copenhagen Munich Franz Josef Strauss
$781Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
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
6:35 am - 5:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
18h 25m2 stops Dublin Reykjavik Keflavik Intl
$783Multiple Airlines
Mon, Nov 2 - Mon, Nov 16
Multiple Airlines Logo
5:50 am - 4:50 pmSEA  Seattle/Tacoma Intl-STN London Stansted
27h 00m3 stops Vancouver Intl Toronto Pearson Intl Kastrup Copenhagen
Multiple Airlines Logo
6:20 am - 9:04 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
22h 44m2 stops Kastrup Copenhagen Toronto Pearson Intl
$785Multiple Airlines
Mon, Oct 19 - Fri, Oct 23
Multiple Airlines Logo
7:55 am - 4:50 pmSEA  Seattle/Tacoma Intl-STN London Stansted
24h 55m2 stops Toronto Pearson Intl Kastrup Copenhagen
Multiple Airlines Logo
6:20 am - 9:04 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
22h 44m2 stops Kastrup Copenhagen Toronto Pearson Intl
$786Multiple Airlines
Mon, Oct 19 - Fri, Oct 23
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
$788Multiple Airlines
Tue, Dec 1 - Wed, Dec 9
Multiple Airlines Logo
7:55 am - 11:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
31h 45m2 stops Toronto Pearson Intl Lisbon Humberto Delgado
Multiple Airlines Logo
7:45 pm - 2:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
25h 15m2 stops Lisbon Humberto Delgado Munich Franz Josef Strauss
$790Multiple Airlines
Wed, Oct 21 - Tue, Oct 27
Multiple Airlines Logo
7:55 am - 11:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
31h 45m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Lisbon Humberto Delgado
Multiple Airlines Logo
7:45 pm - 2:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
25h 15m2 stops Lisbon Humberto Delgado Munich Franz Josef Strauss
$791Multiple Airlines
Wed, Oct 21 - Tue, Oct 27
Multiple Airlines Logo
3:40 pm - 4:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
16h 35m1 stop Reykjavik Keflavik Intl
Multiple Airlines Logo
7:15 am - 6:00 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 45m1 stop Reykjavik Keflavik Intl
$793Multiple Airlines
Wed, Oct 21 - Thu, Oct 29

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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
Nov 27
STN5:20 pmLondon Stansted
31h 50m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$872
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

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 10/23

7:00 pm-9:10 pm

2 stops18h 10m

London Stansted

Sat 10/31

6:15 am-6:00 pm

2 stops18h 45m

$775

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 10/22

7:00 pm-12:30 am

2 stops21h 30m

London Stansted

Thu 10/29

7:20 am-6:00 pm

2 stops17h 40m

$776

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 11/1

7:45 am-9:35 pm

3 stops29h 50m

London Stansted

Sat 11/7

7:10 pm-1:00 pm

2 stops25h 50m

$781

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 11/2

2:35 pm-8:15 pm

2 stops21h 40m

London Stansted

Mon 11/16

6:35 am-5:00 pm

2 stops18h 25m

$783

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 10/19

5:50 am-4:50 pm

3 stops27h 00m

London Stansted

Fri 10/23

6:20 am-9:04 pm

2 stops22h 44m

$785

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 10/19

7:55 am-4:50 pm

2 stops24h 55m

London Stansted

Fri 10/23

6:20 am-9:04 pm

2 stops22h 44m

$786

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

Wed 12/9

8:15 am-5:00 pm

2 stops16h 45m

$788

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 10/21

7:55 am-11:40 pm

2 stops31h 45m

London Stansted

Tue 10/27

7:45 pm-2:00 pm

2 stops25h 15m

$790

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 10/21

7:55 am-11:40 pm

3 stops31h 45m

London Stansted

Tue 10/27

7:45 pm-2:00 pm

2 stops25h 15m

$791
Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 10/21

3:40 pm-4:15 pm

1 stop16h 35m

London Stansted

Thu 10/29

7:15 am-6:00 pm

1 stop17h 45m

$793

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

$335

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 $335. The best round-trip flight deal from Seattle to London Stansted Airport found on momondo in the last 72 hours is $775.
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
Croydon
Luton
Hayes
Dover
Wembley
Kingston upon Thames
Richmond
Stansted
Watford
Harrow
Cobham
Worthing
Eastbourne
Slough
Hook
Uxbridge
Ilford

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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