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.

£291 Cheap Flights from London Stansted Airport to State of Washington in 2026

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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.

12:00 - 17:10

STN

SEA

13h 10m

1 stop

19:10 - 23:20

SEA

STN

20h 10m

1 stop

£514Multiple Airlines

Thu, 28 May - Thu, 4 Jun

06:30 - 09:40

STN

SEA

35h 10m

3 stops

13:30 - 22:55

SEA

STN

25h 25m

2 stops

£516Multiple Airlines

Thu, 7 May - Thu, 14 May

06:35 - 09:40

STN

SEA

35h 05m

3 stops

15:40 - 22:00

SEA

STN

22h 20m

3 stops

£517Multiple Airlines

Sat, 2 May - Tue, 5 May

08:30 - 17:10

STN

SEA

16h 40m

1 stop

19:10 - 17:05

SEA

STN

13h 55m

1 stop

£518Multiple Airlines

Mon, 1 Jun - Mon, 8 Jun

06:35 - 17:10

STN

SEA

18h 35m

1 stop

19:10 - 23:20

SEA

STN

20h 10m

1 stop

£519Multiple Airlines

Fri, 8 May - Thu, 21 May

22:45 - 21:08

STN

SEA

30h 23m

2 stops

15:40 - 00:20

SEA

STN

24h 40m

2 stops

£520Multiple Airlines

Mon, 1 Jun - Mon, 8 Jun

06:30 - 09:40

STN

SEA

35h 10m

3 stops

19:00 - 00:50

SEA

STN

21h 50m

2 stops

£524Multiple Airlines

Mon, 4 May - Fri, 8 May

22:45 - 21:08

STN

SEA

30h 23m

2 stops

15:40 - 00:20

SEA

STN

24h 40m

2 stops

£525Multiple Airlines

Mon, 1 Jun - Mon, 8 Jun

12:00 - 17:10

STN

SEA

13h 10m

1 stop

19:10 - 22:25

SEA

STN

19h 15m

1 stop

£525Multiple Airlines

Thu, 14 May - Thu, 21 May

12:00 - 17:10

STN

SEA

13h 10m

1 stop

19:10 - 23:20

SEA

STN

20h 10m

1 stop

£527Multiple Airlines

Thu, 14 May - Wed, 27 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

29 Apr

STN06:55London Stansted

18h 20m

1 stop

SEA17:15Seattle/Tacoma Intl

2 May

SEA19:10Seattle/Tacoma Intl

30h 45m

1 stop

STN09:55London Stansted

£706

Turkish Airlines

26 Apr

STN17:35London Stansted

31h 40m

1 stop

SEA17:15Seattle/Tacoma Intl

6 May

SEA19:10Seattle/Tacoma Intl

19h 00m

1 stop

STN22:10London Stansted

£717

Turkish Airlines

26 Apr

STN17:35London Stansted

31h 40m

1 stop

SEA17:15Seattle/Tacoma Intl

1 May

SEA19:10Seattle/Tacoma Intl

19h 00m

1 stop

STN22:10London Stansted

£730

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

Cheapest return flight

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 28/5

12:00-17:10

1 stop13h 10m

Seattle/Tacoma Intl

Thu 4/6

19:10-23:20

1 stop20h 10m

£514

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 7/5

06:30-09:40

3 stops35h 10m

Seattle/Tacoma Intl

Thu 14/5

13:30-22:55

2 stops25h 25m

£516

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 2/5

06:35-09:40

3 stops35h 05m

Seattle/Tacoma Intl

Tue 5/5

15:40-22:00

3 stops22h 20m

£517

Fastest return journey

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 1/6

08:30-17:10

1 stop16h 40m

Seattle/Tacoma Intl

Mon 8/6

19:10-17:05

1 stop13h 55m

£518

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 8/5

06:35-17:10

1 stop18h 35m

Seattle/Tacoma Intl

Thu 21/5

19:10-23:20

1 stop20h 10m

£519

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 1/6

22:45-21:08

2 stops30h 23m

Seattle/Tacoma Intl

Mon 8/6

15:40-00:20

2 stops24h 40m

£520

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 4/5

06:30-09:40

3 stops35h 10m

Seattle/Tacoma Intl

Fri 8/5

19:00-00:50

2 stops21h 50m

£524

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 1/6

22:45-21:08

2 stops30h 23m

Seattle/Tacoma Intl

Mon 8/6

15:40-00:20

2 stops24h 40m

£525

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 14/5

12:00-17:10

1 stop13h 10m

Seattle/Tacoma Intl

Thu 21/5

19:10-22:25

1 stop19h 15m

£525

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 14/5

12:00-17:10

1 stop13h 10m

Seattle/Tacoma Intl

Wed 27/5

19:10-23:20

1 stop20h 10m

£527

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Stansted Airport to State of Washington

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 London Stansted to Washington?

Lufthansa is the most popular carrier operating from London Stansted to Washington

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	17h 30m
Direct flights	None

The fastest flight from London Stansted Airport to State of Washington takes 17h 30m

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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Frequently asked questions about flying from London Stansted Airport to Washington

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.

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.