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.

£349 Cheap Flights from London Stansted Airport to State of Washington in 2026

Find the cheapest flights from London Stansted Airport to Washington

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

22:45 - 21:00

STN

SEA

30h 15m

3 stops

19:00 - 18:50

SEA

STN

15h 50m

2 stops

£495Multiple Airlines

Wed, 26 Aug - Mon, 31 Aug

22:45 - 21:00

STN

SEA

30h 15m

3 stops

19:00 - 22:50

SEA

STN

19h 50m

2 stops

£497Multiple Airlines

Wed, 26 Aug - Mon, 31 Aug

22:00 - 21:00

STN

SEA

31h 00m

3 stops

19:00 - 22:05

SEA

STN

19h 05m

3 stops

£515Multiple Airlines

Wed, 26 Aug - Mon, 31 Aug

16:25 - 16:59

STN

SEA

32h 34m

1 stop

18:50 - 15:35

SEA

STN

12h 45m

1 stop

£521Lufthansa

Wed, 23 Sep - Wed, 30 Sep

22:45 - 21:00

STN

SEA

30h 15m

3 stops

19:00 - 22:05

SEA

STN

19h 05m

3 stops

£523Multiple Airlines

Wed, 26 Aug - Mon, 31 Aug

06:30 - 09:40

STN

SEA

35h 10m

3 stops

19:00 - 23:40

SEA

STN

20h 40m

2 stops

£529Multiple Airlines

Wed, 26 Aug - Sun, 6 Sep

06:30 - 18:45

STN

SEA

44h 15m

3 stops

19:00 - 18:50

SEA

STN

15h 50m

2 stops

£534Multiple Airlines

Wed, 26 Aug - Mon, 31 Aug

06:30 - 09:40

STN

SEA

35h 10m

3 stops

19:00 - 23:40

SEA

STN

20h 40m

2 stops

£535Multiple Airlines

Wed, 26 Aug - Sun, 6 Sep

22:00 - 09:40

STN

SEA

43h 40m

3 stops

19:00 - 18:50

SEA

STN

15h 50m

2 stops

£540Multiple Airlines

Tue, 25 Aug - Mon, 31 Aug

06:30 - 21:00

STN

SEA

46h 30m

3 stops

19:00 - 23:40

SEA

STN

20h 40m

2 stops

£549Multiple Airlines

Wed, 26 Aug - Sun, 30 Aug

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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

28 Oct

STN10:55London Stansted

43h 18m

2 stops

PDX23:13Portland

11 Nov

PDX13:19Portland

36h 36m

2 stops

STN09:55London Stansted

£1,278

Turkish Airlines

28 Aug

STN17:35London Stansted

37h 10m

2 stops

PDX22:45Portland

10 Sept

PDX09:00Portland

23h 40m

2 stops

STN16:40London Stansted

£1,318

Turkish Airlines

1 Oct

STN17:35London Stansted

33h 41m

2 stops

PDX19:16Portland

7 Oct

PDX13:03Portland

43h 37m

2 stops

STN16:40London Stansted

£1,324

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

Wed 26/8

22:45-21:00

3 stops30h 15m

Seattle/Tacoma Intl

Mon 31/8

19:00-18:50

2 stops15h 50m

£495

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

22:45-21:00

3 stops30h 15m

Seattle/Tacoma Intl

Mon 31/8

19:00-22:50

2 stops19h 50m

£497

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

22:00-21:00

3 stops31h 00m

Seattle/Tacoma Intl

Mon 31/8

19:00-22:05

3 stops19h 05m

£515

Fastest return journey

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 23/9

16:25-16:59

1 stop32h 34m

Seattle/Tacoma Intl

Wed 30/9

18:50-15:35

1 stop12h 45m

£521

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

22:45-21:00

3 stops30h 15m

Seattle/Tacoma Intl

Mon 31/8

19:00-22:05

3 stops19h 05m

£523

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

06:30-09:40

3 stops35h 10m

Seattle/Tacoma Intl

Sun 6/9

19:00-23:40

2 stops20h 40m

£529

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

06:30-18:45

3 stops44h 15m

Seattle/Tacoma Intl

Mon 31/8

19:00-18:50

2 stops15h 50m

£534

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

06:30-09:40

3 stops35h 10m

Seattle/Tacoma Intl

Sun 6/9

19:00-23:40

2 stops20h 40m

£535

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 25/8

22:00-09:40

3 stops43h 40m

Seattle/Tacoma Intl

Mon 31/8

19:00-18:50

2 stops15h 50m

£540

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 26/8

06:30-21:00

3 stops46h 30m

Seattle/Tacoma Intl

Sun 30/8

19:00-23:40

2 stops20h 40m

£549

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?

Turkish Airlines 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	18h 25m
Direct flights	None

The fastest flight from London Stansted Airport to State of Washington takes 18h 25m

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.

Search flight deals

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.