When did momondo last update prices for flights from London Stansted Airport to Washington?

Prices for flights from London Stansted Airport to Washington are refreshed on a daily basis.

How old do you have to be to fly from London Stansted Airport to Washington?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$511 Cheap Flights from London Stansted Airport to State of Washington in 2026

Find the cheapest flights from London Stansted Airport to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 5:55 pmSTN London Stansted-SEA Seattle/Tacoma Intl

18h 55m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

7:00 pm - 11:20 pmSEA Seattle/Tacoma Intl-STN London Stansted

20h 20m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

$665Multiple Airlines

Wed, Oct 7 - Sun, Oct 18

5:55 am - 5:00 pmSTN London Stansted-SEA Seattle/Tacoma Intl

19h 05m2 stops Berlin Brandenburg Reykjavik Keflavik Intl

2:35 pm - 9:45 pmSEA Seattle/Tacoma Intl-STN London Stansted

23h 10m2 stops Reykjavik Keflavik Intl Berlin Brandenburg

$708Multiple Airlines

Tue, Dec 22 - Tue, Jan 5

10:05 pm - 1:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

23h 40m1 stop Kastrup Copenhagen

3:55 pm - 7:25 pmSEA Seattle/Tacoma Intl-STN London Stansted

43h 30m2 stops Kastrup Copenhagen Gothenburg Landvetter

$719Multiple Airlines

Thu, Oct 1 - Tue, Oct 6

7:00 am - 8:40 pmSTN London Stansted-SEA Seattle/Tacoma Intl

21h 40m2 stops Oslo Gardermoen Reykjavik Keflavik Intl

3:40 pm - 12:20 amSEA Seattle/Tacoma Intl-STN London Stansted

24h 40m2 stops Reykjavik Keflavik Intl Oslo Gardermoen

$721Multiple Airlines

Thu, Oct 15 - Mon, Oct 19

10:05 pm - 1:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

23h 40m1 stop Kastrup Copenhagen

3:55 pm - 6:45 amSEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Kastrup Copenhagen

$726Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

4:55 pm - 1:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

28h 50m2 stops Stockholm Arlanda Kastrup Copenhagen

3:55 pm - 8:35 pmSEA Seattle/Tacoma Intl-STN London Stansted

20h 40m2 stops Kastrup Copenhagen Stockholm Arlanda

$731Multiple Airlines

Thu, Oct 1 - Tue, Oct 6

10:05 pm - 1:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

23h 40m1 stop Kastrup Copenhagen

3:55 pm - 12:10 amSEA Seattle/Tacoma Intl-STN London Stansted

24h 15m1 stop Kastrup Copenhagen

$737Multiple Airlines

Thu, Oct 1 - Tue, Oct 6

10:05 pm - 1:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

23h 40m1 stop Kastrup Copenhagen

3:55 pm - 12:50 amSEA Seattle/Tacoma Intl-STN London Stansted

24h 55m2 stops Kastrup Copenhagen Gdansk Rebiechowo

$739Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

7:10 am - 1:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

14h 35m1 stop Kastrup Copenhagen

7:00 pm - 8:50 amSEA Seattle/Tacoma Intl-STN London Stansted

29h 50m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

$746Multiple Airlines

Tue, Oct 6 - Fri, Oct 23

7:55 pm - 1:05 pmSTN London Stansted-SEA Seattle/Tacoma Intl

25h 10m2 stops Václav Havel Prague Frankfurt am Main

3:00 pm - 10:25 pmSEA Seattle/Tacoma Intl-STN London Stansted

23h 25m2 stops Frankfurt am Main Václav Havel Prague

$750Multiple Airlines

Sat, Nov 21 - Sun, Nov 29

Cheap last minute flights

Enter your travel dates to find the best prices.

4:15 pm - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

34h 30m2 stops Dublin Calgary

3:55 pm - 7:40 amSEA Seattle/Tacoma Intl-STN London Stansted

31h 45m1 stop Kastrup Copenhagen

$815Multiple Airlines

Thu, Sep 17 - Sat, Oct 3

12:00 pm - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

38h 45m2 stops Dublin Calgary

3:55 pm - 7:40 amSEA Seattle/Tacoma Intl-STN London Stansted

31h 45m1 stop Kastrup Copenhagen

$816Multiple Airlines

Thu, Sep 17 - Sat, Oct 3

10:00 pm - 9:40 amSTN London Stansted-SEA Seattle/Tacoma Intl

43h 40m2 stops Dublin Calgary

3:55 pm - 7:40 amSEA Seattle/Tacoma Intl-STN London Stansted

31h 45m1 stop Kastrup Copenhagen

$816Multiple Airlines

Thu, Sep 17 - Sat, Oct 3

6:30 am - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

20h 15m2 stops Dublin Calgary

3:55 pm - 6:45 amSEA Seattle/Tacoma Intl-STN London Stansted

30h 50m1 stop Kastrup Copenhagen

$852Multiple Airlines

Tue, Sep 15 - Sun, Sep 20

4:15 pm - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

34h 30m2 stops Dublin Calgary

3:55 pm - 7:40 amSEA Seattle/Tacoma Intl-STN London Stansted

31h 45m1 stop Kastrup Copenhagen

$853Multiple Airlines

Thu, Sep 17 - Sat, Oct 3

4:15 pm - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

34h 30m2 stops Dublin Calgary

3:55 pm - 7:40 amSEA Seattle/Tacoma Intl-STN London Stansted

31h 45m1 stop Kastrup Copenhagen

$856Multiple Airlines

Thu, Sep 17 - Sat, Oct 3

6:35 am - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

20h 10m2 stops Dublin Calgary

3:55 pm - 7:40 amSEA Seattle/Tacoma Intl-STN London Stansted

31h 45m1 stop Kastrup Copenhagen

$859Multiple Airlines

Fri, Sep 18 - Sat, Oct 3

6:35 am - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

20h 10m2 stops Dublin Calgary

3:55 pm - 7:40 amSEA Seattle/Tacoma Intl-STN London Stansted

31h 45m1 stop Kastrup Copenhagen

$861Multiple Airlines

Fri, Sep 18 - Sat, Oct 3

6:30 am - 5:10 pmSTN London Stansted-SEA Seattle/Tacoma Intl

18h 40m1 stop Dublin

7:10 pm - 11:20 pmSEA Seattle/Tacoma Intl-STN London Stansted

20h 10m1 stop Dublin

$893Multiple Airlines

Wed, Sep 16 - Wed, Sep 23

6:30 am - 6:45 pmSTN London Stansted-SEA Seattle/Tacoma Intl

20h 15m2 stops Dublin Calgary

3:35 pm - 8:10 pmSEA Seattle/Tacoma Intl-STN London Stansted

21h 35m2 stops Reykjavik Keflavik Intl Glasgow Intl

$899Multiple Airlines

Tue, Sep 15 - Sat, Oct 31

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Lufthansa flights from London Stansted Airport to State of Washington

Our best Lufthansa deals on London Stansted Airport to State of Washington flight tickets

Lufthansa

Sep 22

STN11:00 amLondon Stansted

13h 59m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

Sep 27

SEA6:50 pmSeattle/Tacoma Intl

12h 45m

1 stop

STN3:35 pmLondon Stansted

$977

Lufthansa

Sep 22

STN11:00 amLondon Stansted

13h 59m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

Sep 30

SEA6:50 pmSeattle/Tacoma Intl

12h 45m

1 stop

STN3:35 pmLondon Stansted

$993

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 round-trip

Quickest round-trip

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 10/7

7:00 am-5:55 pm

2 stops18h 55m

Seattle/Tacoma Intl

Sun 10/18

7:00 pm-11:20 pm

2 stops20h 20m

$665

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 12/22

5:55 am-5:00 pm

2 stops19h 05m

Seattle/Tacoma Intl

Tue 1/5

2:35 pm-9:45 pm

2 stops23h 10m

$708

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 10/1

10:05 pm-1:45 pm

1 stop23h 40m

Seattle/Tacoma Intl

Tue 10/6

3:55 pm-7:25 pm

2 stops43h 30m

$719

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 10/15

7:00 am-8:40 pm

2 stops21h 40m

Seattle/Tacoma Intl

Mon 10/19

3:40 pm-12:20 am

2 stops24h 40m

$721

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 10/1

10:05 pm-1:45 pm

1 stop23h 40m

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-6:45 am

1 stop30h 50m

$726

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 10/1

4:55 pm-1:45 pm

2 stops28h 50m

Seattle/Tacoma Intl

Tue 10/6

3:55 pm-8:35 pm

2 stops20h 40m

$731

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 10/1

10:05 pm-1:45 pm

1 stop23h 40m

Seattle/Tacoma Intl

Tue 10/6

3:55 pm-12:10 am

1 stop24h 15m

$737

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 10/1

10:05 pm-1:45 pm

1 stop23h 40m

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-12:50 am

2 stops24h 55m

$739

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 10/6

7:10 am-1:45 pm

1 stop14h 35m

Seattle/Tacoma Intl

Fri 10/23

7:00 pm-8:50 am

2 stops29h 50m

$746

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sat 11/21

7:55 pm-1:05 pm

2 stops25h 10m

Seattle/Tacoma Intl

Sun 11/29

3:00 pm-10:25 pm

2 stops23h 25m

$750

Flights are sorted by cheapest round-trip 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	$511
Fastest flight time	15h 25m
Direct flights	None

The best one-way flight to State of Washington from London Stansted Airport in the past 72 hours is $511. The best round-trip flight deal from London Stansted Airport to State of Washington found on momondo in the last 72 hours is $665.

The fastest flight from London Stansted Airport to State of Washington takes 15h 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 are refreshed on a daily basis.
How old do you have to be to fly from London Stansted Airport to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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 travel and health documents you'll need for your trip to Washington may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington. It is always advisable to seek 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?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from London.

Can I find flights from London to Washington with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Washington?

momondo helps you find the best flight between London and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Washington right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.