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Cheap flights from London Stansted Airport to Seattle from £377

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from London Stansted Airport to Seattle

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:40 - 15:40STN  London Stansted-SEA Seattle/Tacoma Intl
30h 00m2 stops Milan Malpensa Frankfurt am Main
Multiple Airlines Logo
18:05 - 20:55SEA  Seattle/Tacoma Intl-STN London Stansted
18h 50m2 stops Frankfurt am Main Milan Malpensa
£512Multiple Airlines
Mon, 12 Oct - Tue, 20 Oct
Lufthansa Logo
11:00 - 16:59STN  London Stansted-SEA Seattle/Tacoma Intl
13h 59m1 stop Munich Franz Josef Strauss
Lufthansa Logo
18:50 - 15:35SEA  Seattle/Tacoma Intl-STN London Stansted
12h 45m1 stop Munich Franz Josef Strauss
£515Lufthansa
Wed, 30 Sep - Tue, 6 Oct
Lufthansa Logo
10:15 - 16:59STN  London Stansted-SEA Seattle/Tacoma Intl
14h 44m1 stop Munich Franz Josef Strauss
Lufthansa Logo
18:50 - 15:35SEA  Seattle/Tacoma Intl-STN London Stansted
12h 45m1 stop Munich Franz Josef Strauss
£517Lufthansa
Sun, 27 Sep - Sun, 4 Oct
Lufthansa Logo
11:00 - 16:59STN  London Stansted-SEA Seattle/Tacoma Intl
13h 59m1 stop Munich Franz Josef Strauss
Lufthansa Logo
18:50 - 15:35SEA  Seattle/Tacoma Intl-STN London Stansted
12h 45m1 stop Munich Franz Josef Strauss
£519Lufthansa
Tue, 29 Sep - Tue, 6 Oct
Multiple Airlines Logo
20:25 - 11:55STN  London Stansted-SEA Seattle/Tacoma Intl
23h 30m2 stops Gothenburg Landvetter Frankfurt am Main
Multiple Airlines Logo
05:50 - 19:25SEA  Seattle/Tacoma Intl-STN London Stansted
29h 35m3 stops Vancouver Intl Frankfurt am Main Gothenburg Landvetter
£521Multiple Airlines
Tue, 29 Sep - Wed, 7 Oct
Multiple Airlines Logo
19:50 - 12:20STN  London Stansted-SEA Seattle/Tacoma Intl
24h 30m2 stops Gothenburg Landvetter Frankfurt am Main
Multiple Airlines Logo
18:50 - 00:05SEA  Seattle/Tacoma Intl-STN London Stansted
21h 15m2 stops Munich Franz Josef Strauss Gothenburg Landvetter
£530Multiple Airlines
Thu, 15 Oct - Fri, 23 Oct
Multiple Airlines Logo
07:05 - 13:45STN  London Stansted-SEA Seattle/Tacoma Intl
14h 40m1 stop Kastrup Copenhagen
Multiple Airlines Logo
15:55 - 21:20SEA  Seattle/Tacoma Intl-STN London Stansted
21h 25m2 stops Kastrup Copenhagen Gothenburg Landvetter
£533Multiple Airlines
Sun, 11 Oct - Sun, 11 Oct
Lufthansa Logo
10:15 - 16:59STN  London Stansted-SEA Seattle/Tacoma Intl
14h 44m1 stop Munich Franz Josef Strauss
Lufthansa Logo
18:50 - 15:35SEA  Seattle/Tacoma Intl-STN London Stansted
12h 45m1 stop Munich Franz Josef Strauss
£534Lufthansa
Sun, 27 Sep - Sun, 4 Oct
Multiple Airlines Logo
22:05 - 13:45STN  London Stansted-SEA Seattle/Tacoma Intl
23h 40m1 stop Kastrup Copenhagen
Multiple Airlines Logo
15:55 - 00:10SEA  Seattle/Tacoma Intl-STN London Stansted
24h 15m1 stop Kastrup Copenhagen
£534Multiple Airlines
Thu, 1 Oct - Tue, 6 Oct
Multiple Airlines Logo
22:05 - 13:45STN  London Stansted-SEA Seattle/Tacoma Intl
23h 40m1 stop Kastrup Copenhagen
Multiple Airlines Logo
15:55 - 20:35SEA  Seattle/Tacoma Intl-STN London Stansted
20h 40m2 stops Kastrup Copenhagen Stockholm Arlanda
£535Multiple Airlines
Thu, 1 Oct - Tue, 6 Oct

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Lufthansa flights from London Stansted Airport to Seattle

Our best Lufthansa deals on London Stansted Airport to Seattle flight tickets
Lufthansa
30 Sept
STN11:00London Stansted
13h 59m
1 stop
SEA16:59Seattle/Tacoma Intl
6 Oct
SEA18:50Seattle/Tacoma Intl
12h 45m
1 stop
STN15:35London Stansted
£515
Lufthansa
27 Sept
STN10:15London Stansted
14h 44m
1 stop
SEA16:59Seattle/Tacoma Intl
4 Oct
SEA18:50Seattle/Tacoma Intl
12h 45m
1 stop
STN15:35London Stansted
£517
Lufthansa
29 Sept
STN11:00London Stansted
13h 59m
1 stop
SEA16:59Seattle/Tacoma Intl
6 Oct
SEA18:50Seattle/Tacoma Intl
12h 45m
1 stop
STN15:35London Stansted
£519

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Mon 12/10

17:40-15:40

2 stops30h 00m

Seattle/Tacoma Intl

Tue 20/10

18:05-20:55

2 stops18h 50m

£512
Fastest return journey

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 30/9

11:00-16:59

1 stop13h 59m

Seattle/Tacoma Intl

Tue 6/10

18:50-15:35

1 stop12h 45m

£515

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 27/9

10:15-16:59

1 stop14h 44m

Seattle/Tacoma Intl

Sun 4/10

18:50-15:35

1 stop12h 45m

£517

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 29/9

11:00-16:59

1 stop13h 59m

Seattle/Tacoma Intl

Tue 6/10

18:50-15:35

1 stop12h 45m

£519

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 29/9

20:25-11:55

2 stops23h 30m

Seattle/Tacoma Intl

Wed 7/10

05:50-19:25

3 stops29h 35m

£521

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 15/10

19:50-12:20

2 stops24h 30m

Seattle/Tacoma Intl

Fri 23/10

18:50-00:05

2 stops21h 15m

£530

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 11/10

07:05-13:45

1 stop14h 40m

Seattle/Tacoma Intl

Sun 11/10

15:55-21:20

2 stops21h 25m

£533

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 27/9

10:15-16:59

1 stop14h 44m

Seattle/Tacoma Intl

Sun 4/10

18:50-15:35

1 stop12h 45m

£534

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 1/10

22:05-13:45

1 stop23h 40m

Seattle/Tacoma Intl

Tue 6/10

15:55-00:10

1 stop24h 15m

£534

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 1/10

22:05-13:45

1 stop23h 40m

Seattle/Tacoma Intl

Tue 6/10

15:55-20:35

2 stops20h 40m

£535

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Seattle from

How to get the cheapest flight ticket from London Stansted Airport to Seattle

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 day to depart on your flight to Seattle?

According to our data, Thursday is the cheapest day to fly to Seattle from London Stansted Airport. The lowest ticket price found for a Thursday departure recently was £600. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Sunday is £677.

What is the cheapest time of day to depart on your flight to Seattle?

According to our data, the cheapest time of day to fly to Seattle is at midday. momondo users have found flights departing from London Stansted Airport to Seattle at midday for as low as £574. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive, with an average ticket price of £635.

When to book flights from London Stansted Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Stansted Airport to Seattle (STN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Seattle

Best price found

£377

Fastest flight time

16h 55m

Direct flights

None
The best one-way flight to Seattle from London Stansted Airport in the past 72 hours is £377. The best return flight deal from London Stansted Airport to Seattle found on momondo in the last 72 hours is £512.
The fastest flight from London Stansted Airport to Seattle takes 16h 55m
There are no direct flights from London Stansted Airport to Seattle. There are no popular flight routes from London Stansted Airport to Seattle.
Search flight deals

Frequently asked questions about flying from London Stansted Airport to Seattle

  • How far is London Stansted to Seattle/Tacoma Intl by plane?

    A flight from London Stansted to Seattle/Tacoma Intl will travel around 4769.5 mi. Flights usually cover this in 16h 55m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London Stansted Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from London Stansted Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How old do you have to be to fly from London Stansted Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Westport
Kirkland
Ashford
Tacoma
SeaTac
Kent
Tukwila
Fife

Why use momondo?

Why should I use momondo to find a flight deal from London to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from London to Seattle with flexible booking policies on momondo?

All flight searches from London to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Seattle?

momondo helps you find the best flight between London and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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