How do I get Price Alerts for flights from London Stansted Airport to State of Washington?

Search flight deals from London Stansted Airport to State of Washington . While viewing offers you’ll have the option to create a Price Alert.

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.

How old do you have to be to fly from London Stansted Airport to Washington?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Stansted Airport to Washington.

What documentation or ID do you need to fly to Washington?

The necessary travel and health documents for your Washington 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.

£310 Cheap Flights from London Stansted Airport to State of Washington in 2025/26

1 adult

0 bags

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Find the cheapest flights from London Stansted Airport to Washington

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

05:55 - 16:09

STN

SEA

42h 14m2 stops

18:55 - 21:20

SEA

STN

18h 25m1 stop

£524Multiple Airlines

Sun, 8 Mar - Sun, 29 Mar

08:30 - 16:59

STN

SEA

16h 29m1 stop

18:45 - 22:20

SEA

STN

19h 35m1 stop

£531Multiple Airlines

Sat, 13 Jun - Sun, 28 Jun

19:50 - 22:16

STN

SEA

34h 26m3 stops

14:35 - 20:50

SEA

STN

22h 15m2 stops

£545Multiple Airlines

Mon, 2 Feb - Sat, 7 Feb

06:00 - 17:00

STN

SEA

19h 00m2 stops

14:35 - 16:40

SEA

STN

18h 05m2 stops

£558Multiple Airlines

Wed, 28 Jan - Wed, 4 Feb

06:30 - 22:16

STN

SEA

23h 46m2 stops

08:10 - 23:35

SEA

STN

32h 25m3 stops

£570Multiple Airlines

Thu, 5 Mar - Sat, 14 Mar

06:30 - 22:16

STN

SEA

23h 46m2 stops

15:00 - 16:35

SEA

STN

18h 35m2 stops

£571Multiple Airlines

Thu, 5 Mar - Sat, 14 Mar

05:55 - 17:00

STN

SEA

19h 05m2 stops

14:35 - 14:35

SEA

STN

16h 00m2 stops

£593Multiple Airlines

Sat, 17 Jan - Sat, 24 Jan

20:25 - 22:16

STN

SEA

33h 51m2 stops

14:35 - 15:40

SEA

STN

17h 05m2 stops

£602Multiple Airlines

Sat, 17 Jan - Fri, 23 Jan

10:50 - 14:30

STN

PDX

35h 40m2 stops

13:34 - 09:55

PDX

STN

36h 21m2 stops

£1,272Turkish Airlines

Mon, 27 Apr - Sat, 2 May

10:50 - 14:30

STN

PDX

35h 40m2 stops

13:34 - 16:50

PDX

STN

43h 16m2 stops

£1,277Turkish Airlines

Mon, 27 Apr - Tue, 5 May

Turkish Airlines flights from London Stansted Airport to State of Washington

Our best Turkish Airlines deals on London Stansted Airport to State of Washington flight tickets

Turkish Airlines

20 Apr

STN10:50London Stansted

38h 25m

1 stop

SEA17:15Seattle/Tacoma Intl

24 Apr

SEA19:10Seattle/Tacoma Intl

30h 45m

1 stop

STN09:55London Stansted

£677

Find similar

Turkish Airlines

21 Apr

STN06:15London Stansted

19h 00m

1 stop

SEA17:15Seattle/Tacoma Intl

29 Apr

SEA19:10Seattle/Tacoma Intl

30h 45m

1 stop

STN09:55London Stansted

£694

Find similar

Turkish Airlines

27 Apr

STN10:50London Stansted

35h 40m

2 stops

PDX14:30Portland

2 May

PDX13:34Portland

36h 21m

2 stops

STN09:55London Stansted

£1,272

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 8/3

05:55-16:09

2 stops42h 14m

Seattle/Tacoma Intl

Sun 29/3

18:55-21:20

1 stop18h 25m

£524

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 13/6

08:30-16:59

1 stop16h 29m

Seattle/Tacoma Intl

Sun 28/6

18:45-22:20

1 stop19h 35m

£531

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 2/2

19:50-22:16

3 stops34h 26m

Seattle/Tacoma Intl

Sat 7/2

14:35-20:50

2 stops22h 15m

£545

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 28/1

06:00-17:00

2 stops19h 00m

Seattle/Tacoma Intl

Wed 4/2

14:35-16:40

2 stops18h 05m

£558

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 5/3

06:30-22:16

2 stops23h 46m

Seattle/Tacoma Intl

Sat 14/3

08:10-23:35

3 stops32h 25m

£570

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 5/3

06:30-22:16

2 stops23h 46m

Seattle/Tacoma Intl

Sat 14/3

15:00-16:35

2 stops18h 35m

£571

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 17/1

05:55-17:00

2 stops19h 05m

Seattle/Tacoma Intl

Sat 24/1

14:35-14:35

2 stops16h 00m

£593

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 17/1

20:25-22:16

2 stops33h 51m

Seattle/Tacoma Intl

Fri 23/1

14:35-15:40

2 stops17h 05m

£602

LondonPortland

STN - PDX

STNPDX

London Stansted

Mon 27/4

10:50-14:30

2 stops35h 40m

Portland

Sat 2/5

13:34-09:55

2 stops36h 21m

£1,272

LondonPortland

STN - PDX

STNPDX

London Stansted

Mon 27/4

10:50-14:30

2 stops35h 40m

Portland

Tue 5/5

13:34-16:50

2 stops43h 16m

£1,277

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Cheap London Stansted Airport to State of Washington flight deals and tips

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

Fastest flight time	19h 00m
Direct flights	None

The fastest flight from London Stansted Airport to State of Washington takes 19h 00m

There are no direct flights from London Stansted Airport to State of Washington. There are no popular flight routes from London Stansted Airport to State of Washington.

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When did momondo last update prices for flights from London Stansted Airport to Washington?
Prices for flights from London Stansted Airport to Washington refresh daily.
How old do you have to be to fly from London Stansted Airport to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Stansted Airport to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington 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.

How do I get Price Alerts for flights from London Stansted Airport to State of Washington?
Search flight deals from London Stansted Airport to State of Washington. While viewing offers you’ll have the option to create a Price Alert.
How can I save money on flights from London Stansted Airport to State of Washington with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
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.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Washington . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from London to Washington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential London to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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