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.

£304 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.

22:05 - 09:40

STN

SEA

43h 35m

3 stops

15:40 - 22:25

SEA

STN

22h 45m

2 stops

£545Multiple Airlines

Thu, 25 Jun - Thu, 9 Jul

22:00 - 09:40

STN

SEA

43h 40m

3 stops

15:40 - 21:05

SEA

STN

21h 25m

2 stops

£546Multiple Airlines

Sat, 27 Jun - Sun, 5 Jul

20:45 - 21:04

STN

SEA

32h 19m

3 stops

15:40 - 20:25

SEA

STN

20h 45m

3 stops

£548Multiple Airlines

Mon, 21 Sep - Fri, 25 Sep

06:35 - 21:00

STN

SEA

22h 25m

3 stops

15:40 - 21:10

SEA

STN

21h 30m

2 stops

£548Multiple Airlines

Fri, 21 Aug - Fri, 11 Sep

06:30 - 09:40

STN

SEA

35h 10m

3 stops

15:40 - 21:30

SEA

STN

21h 50m

2 stops

£550Multiple Airlines

Thu, 16 Jul - Wed, 29 Jul

20:45 - 21:04

STN

SEA

32h 19m

3 stops

19:00 - 23:20

SEA

STN

20h 20m

2 stops

£553Multiple Airlines

Mon, 21 Sep - Sun, 27 Sep

11:35 - 11:45

STN

SEA

32h 10m

2 stops

19:00 - 18:50

SEA

STN

15h 50m

2 stops

£555Multiple Airlines

Mon, 7 Sep - Mon, 21 Sep

06:20 - 21:00

STN

SEA

22h 40m

3 stops

15:40 - 00:50

SEA

STN

25h 10m

2 stops

£557Multiple Airlines

Fri, 4 Sep - Fri, 18 Sep

11:35 - 11:45

STN

SEA

32h 10m

2 stops

19:00 - 18:50

SEA

STN

15h 50m

2 stops

£557Multiple Airlines

Mon, 7 Sep - Mon, 21 Sep

07:05 - 20:40

STN

SEA

21h 35m

2 stops

15:40 - 00:20

SEA

STN

24h 40m

2 stops

£565Multiple Airlines

Tue, 18 Aug - Mon, 31 Aug

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

11 Jun

STN17:35London Stansted

31h 40m

1 stop

SEA17:15Seattle/Tacoma Intl

5 Jul

SEA19:15Seattle/Tacoma Intl

18h 55m

1 stop

STN22:10London Stansted

£920

Turkish Airlines

11 Jun

STN17:35London Stansted

31h 40m

1 stop

SEA17:15Seattle/Tacoma Intl

9 Jul

SEA19:15Seattle/Tacoma Intl

37h 35m

1 stop

STN16:50London Stansted

£974

Turkish Airlines

11 Jun

STN17:35London Stansted

31h 40m

1 stop

SEA17:15Seattle/Tacoma Intl

5 Jul

SEA19:15Seattle/Tacoma Intl

18h 55m

1 stop

STN22:10London Stansted

£984

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 25/6

22:05-09:40

3 stops43h 35m

Seattle/Tacoma Intl

Thu 9/7

15:40-22:25

2 stops22h 45m

£545

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 27/6

22:00-09:40

3 stops43h 40m

Seattle/Tacoma Intl

Sun 5/7

15:40-21:05

2 stops21h 25m

£546

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 21/9

20:45-21:04

3 stops32h 19m

Seattle/Tacoma Intl

Fri 25/9

15:40-20:25

3 stops20h 45m

£548

Fastest return journey

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 21/8

06:35-21:00

3 stops22h 25m

Seattle/Tacoma Intl

Fri 11/9

15:40-21:10

2 stops21h 30m

£548

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 16/7

06:30-09:40

3 stops35h 10m

Seattle/Tacoma Intl

Wed 29/7

15:40-21:30

2 stops21h 50m

£550

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 21/9

20:45-21:04

3 stops32h 19m

Seattle/Tacoma Intl

Sun 27/9

19:00-23:20

2 stops20h 20m

£553

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 7/9

11:35-11:45

2 stops32h 10m

Seattle/Tacoma Intl

Mon 21/9

19:00-18:50

2 stops15h 50m

£555

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 4/9

06:20-21:00

3 stops22h 40m

Seattle/Tacoma Intl

Fri 18/9

15:40-00:50

2 stops25h 10m

£557

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 7/9

11:35-11:45

2 stops32h 10m

Seattle/Tacoma Intl

Mon 21/9

19:00-18:50

2 stops15h 50m

£557

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 18/8

07:05-20:40

2 stops21h 35m

Seattle/Tacoma Intl

Mon 31/8

15:40-00:20

2 stops24h 40m

£565

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	15h 50m
Direct flights	None

The fastest flight from London Stansted Airport to State of Washington takes 15h 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.