Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to London from $291

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 - 7:40 amSEA  Seattle/Tacoma Intl-STN London Stansted
31h 45m1 stop Kastrup Copenhagen
Multiple Airlines Logo
4:15 pm - 10:35 amSTN  London Stansted-SEA Seattle/Tacoma Intl
26h 20m2 stops Dublin New York John F Kennedy Intl
$654Multiple Airlines
Sat, Oct 3 - Sat, Oct 10
Multiple Airlines Logo
3:55 pm - 3:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 45m1 stop Kastrup Copenhagen
Multiple Airlines Logo
6:20 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
15h 25m1 stop Kastrup Copenhagen
$655Multiple Airlines
Sun, Sep 27 - Fri, Oct 9
Multiple Airlines Logo
3:55 pm - 3:25 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 30m1 stop Kastrup Copenhagen
Multiple Airlines Logo
7:05 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
14h 40m1 stop Kastrup Copenhagen
$658Multiple Airlines
Fri, Sep 25 - Sun, Oct 4
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
$665Multiple Airlines
Sun, Sep 27 - Sun, Oct 4
Multiple Airlines Logo
3:55 pm - 3:25 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 30m1 stop Kastrup Copenhagen
Multiple Airlines Logo
8:10 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
13h 35m1 stop Kastrup Copenhagen
$665Multiple Airlines
Fri, Sep 25 - Fri, Oct 2
Multiple Airlines Logo
3:55 pm - 3:25 pmSEA  Seattle/Tacoma Intl-STN London Stansted
15h 30m1 stop Kastrup Copenhagen
Multiple Airlines Logo
5:55 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
15h 50m1 stop Kastrup Copenhagen
$665Multiple Airlines
Fri, Sep 25 - Sat, Oct 3
Multiple Airlines Logo
3:55 pm - 12:40 pmSEA  Seattle/Tacoma Intl-STN London Stansted
12h 45m1 stop Kastrup Copenhagen
Multiple Airlines Logo
6:20 am - 1:45 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
15h 25m1 stop Kastrup Copenhagen
$665Multiple Airlines
Fri, Sep 25 - Fri, Oct 2
Multiple Airlines Logo
3:40 pm - 5:15 pmSEA  Seattle/Tacoma Intl-STN London Stansted
17h 35m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
10:55 am - 8:40 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
17h 45m2 stops Stockholm Arlanda Reykjavik Keflavik Intl
$668Multiple Airlines
Sun, Oct 11 - Sun, Oct 18
Multiple Airlines Logo
5:50 am - 6:50 pmSEA  Seattle/Tacoma Intl-STN London Stansted
29h 00m3 stops Vancouver Intl Toronto Pearson Intl Kastrup Copenhagen
Multiple Airlines Logo
7:10 am - 10:47 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
23h 37m3 stops Kastrup Copenhagen Toronto Pearson Intl Vancouver Intl
$669Multiple Airlines
Mon, Oct 12 - Tue, Oct 20
Multiple Airlines Logo
3:40 pm - 7:35 pmSEA  Seattle/Tacoma Intl-STN London Stansted
19h 55m2 stops Reykjavik Keflavik Intl Milan Malpensa
Multiple Airlines Logo
10:35 am - 8:40 pmSTN  London Stansted-SEA Seattle/Tacoma Intl
18h 05m2 stops Milan Malpensa Reykjavik Keflavik Intl
$670Multiple Airlines
Mon, Oct 5 - Tue, Oct 13

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 7
SEA12:35 pmSeattle/Tacoma Intl
37h 20m
1 stop
STN9:55 amLondon Stansted
Oct 4
STN5:35 pmLondon Stansted
31h 45m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$1,073
Turkish Airlines
Sep 6
SEA7:15 pmSeattle/Tacoma Intl
18h 55m
1 stop
STN10:10 pmLondon Stansted
Nov 15
STN10:55 amLondon Stansted
38h 15m
1 stop
SEA5:10 pmSeattle/Tacoma Intl
$1,082

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sat 10/3

3:55 pm-7:40 am

1 stop31h 45m

London Stansted

Sat 10/10

4:15 pm-10:35 am

2 stops26h 20m

$654

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

Fri 10/9

6:20 am-1:45 pm

1 stop15h 25m

$655

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Fri 9/25

3:55 pm-3:25 pm

1 stop15h 30m

London Stansted

Sun 10/4

7:05 am-1:45 pm

1 stop14h 40m

$658

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

$665

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Fri 9/25

3:55 pm-3:25 pm

1 stop15h 30m

London Stansted

Fri 10/2

8:10 am-1:45 pm

1 stop13h 35m

$665

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Fri 9/25

3:55 pm-3:25 pm

1 stop15h 30m

London Stansted

Sat 10/3

5:55 am-1:45 pm

1 stop15h 50m

$665
Quickest round-trip

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Fri 9/25

3:55 pm-12:40 pm

1 stop12h 45m

London Stansted

Fri 10/2

6:20 am-1:45 pm

1 stop15h 25m

$665

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 10/11

3:40 pm-5:15 pm

2 stops17h 35m

London Stansted

Sun 10/18

10:55 am-8:40 pm

2 stops17h 45m

$668

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 10/12

5:50 am-6:50 pm

3 stops29h 00m

London Stansted

Tue 10/20

7:10 am-10:47 pm

3 stops23h 37m

$669

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-7:35 pm

2 stops19h 55m

London Stansted

Tue 10/13

10:35 am-8:40 pm

2 stops18h 05m

$670

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

$291

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 $291. The best round-trip flight deal from Seattle to London Stansted Airport found on momondo in the last 72 hours is $654.
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
Croydon
Dover
Stansted
Richmond
Kingston upon Thames
Harrow
Watford
Cobham
Slough
Uxbridge
Eastbourne
Worthing
Romford
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.

An easier way to manage your London Stansted Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 9/23
Wed 9/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London

Popular cities in the United Kingdom

Flights to London Heathrow Airportfrom $441
Flights to London Gatwick Airportfrom $370
Flights to London City Airportfrom $643
Flights to London Luton Airportfrom $404
Flights to Glasgow Intl Airportfrom $412
Flights to Belfast Intl Airportfrom $565
Flights to London Southend Airportfrom $668
Flights to Belfast City Airportfrom $565