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.

£245 Cheap Flights from London Stansted Airport to State of Washington in 2026

1 adult

0 bags

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Find the cheapest flights from London Stansted Airport to Washington

Round-trip

One-way

Last minute

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Enter your travel dates to find the best prices.

06:30 - 20:40

STN

SEA

22h 10m

2 stops

15:40 - 23:20

SEA

STN

23h 40m

2 stops

£410Multiple Airlines

Tue, 14 Apr - Tue, 21 Apr

06:30 - 20:40

STN

SEA

22h 10m

2 stops

15:40 - 23:20

SEA

STN

23h 40m

2 stops

£413Multiple Airlines

Tue, 14 Apr - Tue, 21 Apr

22:50 - 14:19

STN

SEA

47h 29m

3 stops

15:40 - 00:20

SEA

STN

24h 40m

2 stops

£429Multiple Airlines

Fri, 17 Apr - Mon, 27 Apr

06:30 - 20:40

STN

SEA

22h 10m

2 stops

15:40 - 17:35

SEA

STN

17h 55m

2 stops

£434Multiple Airlines

Tue, 14 Apr - Tue, 21 Apr

06:30 - 17:55

STN

SEA

19h 25m

2 stops

15:40 - 19:30

SEA

STN

19h 50m

2 stops

£439Multiple Airlines

Wed, 15 Apr - Wed, 22 Apr

06:30 - 20:40

STN

SEA

22h 10m

2 stops

15:40 - 23:20

SEA

STN

23h 40m

2 stops

£450Multiple Airlines

Mon, 13 Apr - Mon, 20 Apr

06:30 - 21:53

STN

SEA

23h 23m

2 stops

15:40 - 19:15

SEA

STN

19h 35m

2 stops

£454Multiple Airlines

Mon, 13 Apr - Mon, 27 Apr

06:30 - 21:53

STN

SEA

23h 23m

2 stops

15:40 - 22:25

SEA

STN

22h 45m

2 stops

£465Multiple Airlines

Mon, 13 Apr - Mon, 27 Apr

06:30 - 17:10

STN

SEA

18h 40m

1 stop

19:10 - 17:35

SEA

STN

14h 25m

1 stop

£468Multiple Airlines

Tue, 14 Apr - Tue, 21 Apr

06:30 - 17:10

STN

SEA

18h 40m

1 stop

19:10 - 17:35

SEA

STN

14h 25m

1 stop

£471Multiple Airlines

Wed, 15 Apr - Wed, 22 Apr

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

13 Apr

STN10:50London Stansted

35h 40m

2 stops

PDX14:30Portland

20 Apr

PDX13:39Portland

36h 16m

2 stops

STN09:55London Stansted

£1,266

Turkish Airlines

20 Apr

STN10:50London Stansted

35h 40m

2 stops

PDX14:30Portland

11 May

PDX13:37Portland

36h 18m

2 stops

STN09:55London Stansted

£1,270

Turkish Airlines

5 Jul

STN17:35London Stansted

35h 19m

2 stops

PDX20:54Portland

18 Jul

PDX13:02Portland

36h 53m

2 stops

STN09:55London Stansted

£1,323

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

Tue 14/4

06:30-20:40

2 stops22h 10m

Seattle/Tacoma Intl

Tue 21/4

15:40-23:20

2 stops23h 40m

£410

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 14/4

06:30-20:40

2 stops22h 10m

Seattle/Tacoma Intl

Tue 21/4

15:40-23:20

2 stops23h 40m

£413

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 17/4

22:50-14:19

3 stops47h 29m

Seattle/Tacoma Intl

Mon 27/4

15:40-00:20

2 stops24h 40m

£429

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 14/4

06:30-20:40

2 stops22h 10m

Seattle/Tacoma Intl

Tue 21/4

15:40-17:35

2 stops17h 55m

£434

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 15/4

06:30-17:55

2 stops19h 25m

Seattle/Tacoma Intl

Wed 22/4

15:40-19:30

2 stops19h 50m

£439

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 13/4

06:30-20:40

2 stops22h 10m

Seattle/Tacoma Intl

Mon 20/4

15:40-23:20

2 stops23h 40m

£450

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 13/4

06:30-21:53

2 stops23h 23m

Seattle/Tacoma Intl

Mon 27/4

15:40-19:15

2 stops19h 35m

£454

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 13/4

06:30-21:53

2 stops23h 23m

Seattle/Tacoma Intl

Mon 27/4

15:40-22:25

2 stops22h 45m

£465

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 14/4

06:30-17:10

1 stop18h 40m

Seattle/Tacoma Intl

Tue 21/4

19:10-17:35

1 stop14h 25m

£468

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 15/4

06:30-17:10

1 stop18h 40m

Seattle/Tacoma Intl

Wed 22/4

19:10-17:35

1 stop14h 25m

£471

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	14h 00m
Direct flights	None

The fastest flight from London Stansted Airport to State of Washington takes 14h 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.

Search flight deals

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.