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Cheap flights from Seattle to London from $332

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to London departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 am - 9:50 amSEA-STN
17h 40m2 stops
Multiple Airlines Logo
7:45 pm - 10:06 pmSTN-SEA
34h 21m3 stops
$586Multiple Airlines
Find Deal
jue., ene. 8 - jue., ene. 15
Multiple Airlines Logo
8:10 am - 11:05 amSEA-STN
18h 55m2 stops
Multiple Airlines Logo
9:45 pm - 12:10 pmSTN-SEA
22h 25m2 stops
$588Multiple Airlines
Find Deal
dom., ene. 11 - vie., ene. 23
Multiple Airlines Logo
2:00 pm - 4:35 pmSEA-STN
18h 35m2 stops
Multiple Airlines Logo
6:20 pm - 12:10 pmSTN-SEA
25h 50m2 stops
$589Multiple Airlines
Find Deal
sáb., ene. 17 - dom., ene. 25
Multiple Airlines Logo
8:10 am - 11:55 pmSEA-STN
31h 45m2 stops
Multiple Airlines Logo
6:15 am - 9:31 amSTN-SEA
35h 16m3 stops
$591Multiple Airlines
Find Deal
vie., ene. 30 - dom., feb. 8
Multiple Airlines Logo
2:00 pm - 12:10 amSEA-STN
26h 10m2 stops
Multiple Airlines Logo
4:20 pm - 12:10 pmSTN-SEA
27h 50m2 stops
$594Multiple Airlines
Find Deal
vie., ene. 9 - vie., ene. 16
Multiple Airlines Logo
3:10 pm - 6:10 pmSEA-STN
19h 00m2 stops
Multiple Airlines Logo
7:45 pm - 1:20 pmSTN-SEA
25h 35m2 stops
$595Multiple Airlines
Find Deal
mié., feb. 4 - mar., feb. 10
Multiple Airlines Logo
9:05 pm - 5:50 pmSEA-STN
13h 45m1 stop
Multiple Airlines Logo
8:30 am - 7:20 pmSTN-SEA
17h 50m1 stop
$600Multiple Airlines
Find Deal
mié., mar. 11 - mié., mar. 18
Multiple Airlines Logo
6:45 pm - 2:45 pmSEA-STN
12h 00m1 stop
Multiple Airlines Logo
11:40 am - 4:59 pmSTN-SEA
13h 19m1 stop
$603Multiple Airlines
Find Deal
mar., abr. 14 - mié., abr. 22
Multiple Airlines Logo
5:50 am - 6:10 pmSEA-STN
28h 20m3 stops
Multiple Airlines Logo
6:15 am - 10:16 pmSTN-SEA
24h 01m2 stops
$604Multiple Airlines
Find Deal
mié., ene. 14 - dom., ene. 18
Multiple Airlines Logo
8:05 pm - 9:20 pmSEA-STN
17h 15m1 stop
Multiple Airlines Logo
6:30 am - 6:20 pmSTN-SEA
19h 50m1 stop
$614Multiple Airlines
Find Deal
lun., dic. 15 - lun., dic. 22

Turkish Airlines flights from Seattle to London Stansted Airport

Our best Turkish Airlines deals on Seattle to London Stansted Airport flight tickets
Turkish Airlines
Mar 25
SEA8:00 pmSeattle/Tacoma Intl
37h 20m
1 stop
STN4:20 pmLondon Stansted
Apr 8
STN5:45 pmLondon Stansted
31h 30m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$719
Find similar
Turkish Airlines
Apr 6
SEA7:10 pmSeattle/Tacoma Intl
31h 05m
1 stop
STN10:15 amLondon Stansted
May 7
STN5:45 pmLondon Stansted
31h 30m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$720
Find similar
Turkish Airlines
Apr 29
SEA7:10 pmSeattle/Tacoma Intl
19h 00m
1 stop
STN10:10 pmLondon Stansted
May 13
STN6:15 amLondon Stansted
19h 00m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
$721
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to London Stansted Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated noviembre 26, 2025.
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

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

jue. 1/8

8:10 am-9:50 am

2 stops17h 40m

London Stansted

jue. 1/15

7:45 pm-10:06 pm

3 stops34h 21m

$586

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

dom. 1/11

8:10 am-11:05 am

2 stops18h 55m

London Stansted

vie. 1/23

9:45 pm-12:10 pm

2 stops22h 25m

$588

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

sáb. 1/17

2:00 pm-4:35 pm

2 stops18h 35m

London Stansted

dom. 1/25

6:20 pm-12:10 pm

2 stops25h 50m

$589

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

vie. 1/30

8:10 am-11:55 pm

2 stops31h 45m

London Stansted

dom. 2/8

6:15 am-9:31 am

3 stops35h 16m

$591

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

vie. 1/9

2:00 pm-12:10 am

2 stops26h 10m

London Stansted

vie. 1/16

4:20 pm-12:10 pm

2 stops27h 50m

$594

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

mié. 2/4

3:10 pm-6:10 pm

2 stops19h 00m

London Stansted

mar. 2/10

7:45 pm-1:20 pm

2 stops25h 35m

$595

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

mié. 3/11

9:05 pm-5:50 pm

1 stop13h 45m

London Stansted

mié. 3/18

8:30 am-7:20 pm

1 stop17h 50m

$600

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

mar. 4/14

6:45 pm-2:45 pm

1 stop12h 00m

London Stansted

mié. 4/22

11:40 am-4:59 pm

1 stop13h 19m

$603

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

mié. 1/14

5:50 am-6:10 pm

3 stops28h 20m

London Stansted

dom. 1/18

6:15 am-10:16 pm

2 stops24h 01m

$604

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

lun. 12/15

8:05 pm-9:20 pm

1 stop17h 15m

London Stansted

lun. 12/22

6:30 am-6:20 pm

1 stop19h 50m

$614

Flights are sorted by cheapest round-trip flights first.

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

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

Fastest flight time

12h 00m

Direct flights

None
The fastest flight from Seattle to London Stansted Airport takes 12h 00m
There are no direct flights from Seattle to London Stansted Airport. There are no popular flight routes from Seattle to London Stansted Airport.
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  • 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 00m, 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.

  • How do I get Price Alerts for flights from Seattle to London Stansted Airport?

    Confirm your travel details to search for the latest offers for flights from Seattle to London Stansted Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to London Stansted Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Dover
Luton
Slough
Guildford
Hayes
Dartford
Crawley
Brentwood
Chelmsford
Wembley
Romford
Watford
Ilford
Cobham
Folkestone
Uxbridge
Stansted

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.
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