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.

£390 Cheap Flights from London Stansted Airport to State of Washington in 2026/27

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.

06:45 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

18h 15m2 stops Dublin Reykjavik Keflavik Intl

14:35 - 23:15SEA Seattle/Tacoma Intl-STN London Stansted

24h 40m2 stops Reykjavik Keflavik Intl Dublin

£539Multiple Airlines

Thu, 12 Nov - Thu, 26 Nov

06:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

18h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

14:35 - 15:40SEA Seattle/Tacoma Intl-STN London Stansted

17h 05m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£553Multiple Airlines

Sat, 23 Jan - Sun, 14 Feb

06:45 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

18h 15m2 stops Dublin Reykjavik Keflavik Intl

14:35 - 22:10SEA Seattle/Tacoma Intl-STN London Stansted

23h 35m2 stops Reykjavik Keflavik Intl Dublin

£559Multiple Airlines

Fri, 12 Feb - Sun, 21 Feb

22:25 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

26h 35m2 stops Dublin Reykjavik Keflavik Intl

14:35 - 21:40SEA Seattle/Tacoma Intl-STN London Stansted

23h 05m2 stops Reykjavik Keflavik Intl Dublin

£562Multiple Airlines

Fri, 20 Nov - Sat, 28 Nov

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

14:35 - 16:55SEA Seattle/Tacoma Intl-STN London Stansted

18h 20m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£563Multiple Airlines

Wed, 25 Nov - Sun, 31 Jan

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

14:35 - 15:05SEA Seattle/Tacoma Intl-STN London Stansted

16h 30m2 stops Reykjavik Keflavik Intl Oslo Gardermoen

£569Multiple Airlines

Tue, 10 Nov - Mon, 30 Nov

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

14:35 - 15:40SEA Seattle/Tacoma Intl-STN London Stansted

17h 05m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£578Multiple Airlines

Wed, 13 Jan - Wed, 27 Jan

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

14:35 - 18:05SEA Seattle/Tacoma Intl-STN London Stansted

19h 30m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£581Multiple Airlines

Tue, 2 Feb - Tue, 9 Feb

07:55 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

17h 05m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

14:35 - 18:50SEA Seattle/Tacoma Intl-STN London Stansted

20h 15m2 stops Reykjavik Keflavik Intl Oslo Gardermoen

£583Multiple Airlines

Sat, 5 Dec - Tue, 8 Dec

08:15 - 17:00STN London Stansted-SEA Seattle/Tacoma Intl

16h 45m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

14:35 - 22:50SEA Seattle/Tacoma Intl-STN London Stansted

24h 15m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Bergamo Orio Al Serio

£584Multiple Airlines

Tue, 24 Nov - Tue, 1 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

19:15 - 15:55STN London Stansted-SEA Seattle/Tacoma Intl

28h 40m2 stops Milan Malpensa Frankfurt am Main

15:00 - 18:15SEA Seattle/Tacoma Intl-STN London Stansted

19h 15m2 stops Frankfurt am Main Milan Malpensa

£616Multiple Airlines

Fri, 6 Nov - Sun, 22 Nov

19:15 - 15:55STN London Stansted-SEA Seattle/Tacoma Intl

28h 40m2 stops Milan Malpensa Frankfurt am Main

15:00 - 18:15SEA Seattle/Tacoma Intl-STN London Stansted

19h 15m2 stops Frankfurt am Main Milan Malpensa

£646Multiple Airlines

Fri, 6 Nov - Sun, 22 Nov

17:20 - 17:10STN London Stansted-SEA Seattle/Tacoma Intl

31h 50m1 stop Istanbul

10:50 - 09:55SEA Seattle/Tacoma Intl-STN London Stansted

39h 05m2 stops Chicago O'Hare Intl Istanbul

£740Turkish Airlines

Thu, 5 Nov - Tue, 10 Nov

17:20 - 23:20STN London Stansted-SEA Seattle/Tacoma Intl

38h 00m2 stops Istanbul Chicago O'Hare Intl

19:05 - 09:55SEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Istanbul

£746Turkish Airlines

Thu, 5 Nov - Thu, 19 Nov

17:20 - 23:20STN London Stansted-SEA Seattle/Tacoma Intl

38h 00m2 stops Istanbul Chicago O'Hare Intl

19:05 - 09:55SEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Istanbul

£757Turkish Airlines

Thu, 5 Nov - Sat, 21 Nov

17:20 - 18:10STN London Stansted-SEA Seattle/Tacoma Intl

32h 50m1 stop Istanbul

19:05 - 09:55SEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Istanbul

£760Turkish Airlines

Thu, 5 Nov - Sat, 21 Nov

17:20 - 17:10STN London Stansted-SEA Seattle/Tacoma Intl

31h 50m1 stop Istanbul

19:05 - 09:55SEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Istanbul

£762Turkish Airlines

Thu, 5 Nov - Sat, 21 Nov

17:20 - 18:10STN London Stansted-SEA Seattle/Tacoma Intl

32h 50m1 stop Istanbul

19:05 - 09:55SEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Istanbul

£764Turkish Airlines

Thu, 5 Nov - Sat, 21 Nov

17:20 - 18:10STN London Stansted-SEA Seattle/Tacoma Intl

32h 50m1 stop Istanbul

19:05 - 09:55SEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Istanbul

£765Turkish Airlines

Thu, 5 Nov - Sat, 21 Nov

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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

5 Nov

STN17:20London Stansted

31h 50m

1 stop

SEA17:10Seattle/Tacoma Intl

10 Nov

SEA10:50Seattle/Tacoma Intl

39h 05m

2 stops

STN09:55London Stansted

£740

Turkish Airlines

10 Nov

STN17:20London Stansted

37h 47m

2 stops

SEA23:07Seattle/Tacoma Intl

30 Nov

SEA19:05Seattle/Tacoma Intl

30h 50m

1 stop

STN09:55London Stansted

£743

Turkish Airlines

10 Nov

STN17:20London Stansted

37h 47m

2 stops

SEA23:07Seattle/Tacoma Intl

25 Nov

SEA19:05Seattle/Tacoma Intl

30h 50m

1 stop

STN09:55London Stansted

£745

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 London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 12/11

06:45-17:00

2 stops18h 15m

Seattle/Tacoma Intl

Thu 26/11

14:35-23:15

2 stops24h 40m

£539

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sat 23/1

06:15-17:00

2 stops18h 45m

Seattle/Tacoma Intl

Sun 14/2

14:35-15:40

2 stops17h 05m

£553

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 12/2

06:45-17:00

2 stops18h 15m

Seattle/Tacoma Intl

Sun 21/2

14:35-22:10

2 stops23h 35m

£559

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 20/11

22:25-17:00

2 stops26h 35m

Seattle/Tacoma Intl

Sat 28/11

14:35-21:40

2 stops23h 05m

£562

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 25/11

08:15-17:00

2 stops16h 45m

Seattle/Tacoma Intl

Sun 31/1

14:35-16:55

2 stops18h 20m

£563

Fastest return journey

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 10/11

08:15-17:00

2 stops16h 45m

Seattle/Tacoma Intl

Mon 30/11

14:35-15:05

2 stops16h 30m

£569

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 13/1

08:15-17:00

2 stops16h 45m

Seattle/Tacoma Intl

Wed 27/1

14:35-15:40

2 stops17h 05m

£578

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 2/2

08:15-17:00

2 stops16h 45m

Seattle/Tacoma Intl

Tue 9/2

14:35-18:05

2 stops19h 30m

£581

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sat 5/12

07:55-17:00

2 stops17h 05m

Seattle/Tacoma Intl

Tue 8/12

14:35-18:50

2 stops20h 15m

£583

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 24/11

08:15-17:00

2 stops16h 45m

Seattle/Tacoma Intl

Tue 1/12

14:35-22:50

3 stops24h 15m

£584

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

Best price found	£390
Fastest flight time	16h 50m
Direct flights	None

The best one-way flight to State of Washington from London Stansted Airport in the past 72 hours is £390. The best return flight deal from London Stansted Airport to State of Washington found on momondo in the last 72 hours is £539.

The fastest flight from London Stansted Airport to State of Washington takes 16h 50m

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.