How do I get Price Alerts for flights from London Stansted Airport to State of Washington?

Price Alerts will notify you by email when the price for flights to State of Washington from London Stansted Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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.

$518 Cheap Flights from London Stansted Airport to State of Washington in 2025

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Find the cheapest flights from London Stansted Airport to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

8:15 am - 11:55 amSTN-SEA

35h 40m3 stops

2:20 pm - 8:30 pmSEA-STN

22h 10m2 stops

$632

Find Deal

mar., sep. 16 - mar., sep. 23

8:15 am - 5:50 pmSTN-SEA

17h 35m1 stop

7:35 pm - 6:00 pmSEA-STN

14h 25m1 stop

$645

Find Deal

jue., oct. 2 - dom., oct. 5

6:10 am - 4:35 pmSTN-SEA

18h 25m2 stops

5:05 pm - 10:10 pmSEA-STN

21h 05m2 stops

$666

Find Deal

lun., sep. 8 - dom., sep. 21

10:00 pm - 11:55 amSTN-SEA

21h 55m2 stops

3:00 pm - 9:20 pmSEA-STN

23h 20m2 stops

$669

Find Deal

mié., oct. 22 - lun., oct. 27

10:00 pm - 10:16 pmSTN-SEA

32h 16m3 stops

7:15 am - 4:05 pmSEA-STN

24h 50m2 stops

$672

Find Deal

mié., sep. 10 - lun., sep. 15

10:50 pm - 2:16 pmSTN-SEA

23h 26m2 stops

7:15 am - 7:50 pmSEA-STN

28h 35m2 stops

$676

Find Deal

vie., sep. 12 - vie., sep. 19

8:10 am - 8:40 pmSTN-SEA

20h 30m2 stops

3:45 pm - 5:50 pmSEA-STN

18h 05m2 stops

$680

Find Deal

vie., oct. 17 - vie., oct. 24

9:20 am - 5:50 pmSTN-SEA

16h 30m1 stop

7:35 pm - 3:20 pmSEA-STN

11h 45m1 stop

$686

Find Deal

jue., sep. 18 - lun., sep. 22

11:00 am - 8:40 pmSTN-SEA

17h 40m2 stops

3:45 pm - 9:20 pmSEA-STN

21h 35m2 stops

$722

Find Deal

lun., oct. 6 - vie., oct. 10

6:25 am - 12:59 pmSTN-SEA

38h 34m3 stops

12:00 pm - 3:00 pmSEA-STN

19h 00m2 stops

$735

Find Deal

lun., sep. 15 - mar., sep. 23

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

mar. 9/16

8:15 am-11:55 am

3 stops35h 40m

Seattle/Tacoma Intl

mar. 9/23

2:20 pm-8:30 pm

2 stops22h 10m

$632

LondonSeattle

STN - SEA

STNSEA

London Stansted

jue. 10/2

8:15 am-5:50 pm

1 stop17h 35m

Seattle/Tacoma Intl

dom. 10/5

7:35 pm-6:00 pm

1 stop14h 25m

$645

LondonSeattle

STN - SEA

STNSEA

London Stansted

lun. 9/8

6:10 am-4:35 pm

2 stops18h 25m

Seattle/Tacoma Intl

dom. 9/21

5:05 pm-10:10 pm

2 stops21h 05m

$666

LondonSeattle

STN - SEA

STNSEA

London Stansted

mié. 10/22

10:00 pm-11:55 am

2 stops21h 55m

Seattle/Tacoma Intl

lun. 10/27

3:00 pm-9:20 pm

2 stops23h 20m

$669

LondonSeattle

STN - SEA

STNSEA

London Stansted

mié. 9/10

10:00 pm-10:16 pm

3 stops32h 16m

Seattle/Tacoma Intl

lun. 9/15

7:15 am-4:05 pm

2 stops24h 50m

$672

LondonSeattle

STN - SEA

STNSEA

London Stansted

vie. 9/12

10:50 pm-2:16 pm

2 stops23h 26m

Seattle/Tacoma Intl

vie. 9/19

7:15 am-7:50 pm

2 stops28h 35m

$676

LondonSeattle

STN - SEA

STNSEA

London Stansted

vie. 10/17

8:10 am-8:40 pm

2 stops20h 30m

Seattle/Tacoma Intl

vie. 10/24

3:45 pm-5:50 pm

2 stops18h 05m

$680

LondonSeattle

STN - SEA

STNSEA

London Stansted

jue. 9/18

9:20 am-5:50 pm

1 stop16h 30m

Seattle/Tacoma Intl

lun. 9/22

7:35 pm-3:20 pm

1 stop11h 45m

$686

LondonSeattle

STN - SEA

STNSEA

London Stansted

lun. 10/6

11:00 am-8:40 pm

2 stops17h 40m

Seattle/Tacoma Intl

vie. 10/10

3:45 pm-9:20 pm

2 stops21h 35m

$722

LondonSeattle

STN - SEA

STNSEA

London Stansted

lun. 9/15

6:25 am-12:59 pm

3 stops38h 34m

Seattle/Tacoma Intl

mar. 9/23

12:00 pm-3:00 pm

2 stops19h 00m

$735

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Direct flights	None

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 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.

How do I get Price Alerts for flights from London Stansted Airport to State of Washington?
Price Alerts will notify you by email when the price for flights to State of Washington from London Stansted Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from London Stansted Airport to State of Washington with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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.