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

Prices for flights from Washington to London Stansted Airport are updated daily.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to London Stansted Airport.

What documentation or ID do you need to fly to London Stansted Airport?

The travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$218 Cheap Flights from State of Washington to London Stansted Airport in 2026

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3:40 pm - 10:25 pm

SEA

STN

22h 45m

2 stops

6:30 am - 9:40 am

STN

SEA

35h 10m

3 stops

$558Multiple Airlines

Mon, Apr 20 - Mon, Apr 27

3:40 pm - 10:35 pm

SEA

STN

22h 55m

2 stops

6:30 am - 9:35 am

STN

SEA

35h 05m

3 stops

$560Multiple Airlines

Thu, Apr 16 - Wed, Apr 29

7:00 pm - 9:10 pm

SEA

STN

18h 10m

2 stops

3:10 pm - 5:55 pm

STN

SEA

34h 45m

2 stops

$569Multiple Airlines

Fri, Apr 17 - Fri, Apr 24

7:00 pm - 11:50 pm

SEA

STN

20h 50m

2 stops

6:30 am - 9:35 am

STN

SEA

35h 05m

3 stops

$572Multiple Airlines

Sun, Apr 5 - Tue, Apr 14

7:00 pm - 10:50 pm

SEA

STN

19h 50m

2 stops

10:45 pm - 9:35 am

STN

SEA

42h 50m

3 stops

$580Multiple Airlines

Mon, Apr 6 - Mon, Apr 13

7:00 pm - 10:50 pm

SEA

STN

19h 50m

2 stops

10:45 pm - 9:35 am

STN

SEA

42h 50m

3 stops

$581Multiple Airlines

Mon, Apr 6 - Mon, Apr 13

7:00 pm - 12:30 am

SEA

STN

21h 30m

3 stops

6:30 am - 9:35 am

STN

SEA

35h 05m

3 stops

$587Multiple Airlines

Thu, Apr 16 - Wed, Apr 29

7:00 pm - 11:15 pm

SEA

STN

20h 15m

2 stops

6:30 am - 9:35 am

STN

SEA

35h 05m

3 stops

$589Multiple Airlines

Sat, Apr 25 - Wed, Apr 29

3:40 pm - 10:25 pm

SEA

STN

22h 45m

2 stops

6:30 am - 9:53 pm

STN

SEA

23h 23m

2 stops

$596Multiple Airlines

Mon, Apr 20 - Wed, Apr 29

7:00 pm - 10:40 pm

SEA

STN

19h 40m

2 stops

6:30 am - 2:19 pm

STN

SEA

39h 49m

3 stops

$597Multiple Airlines

Tue, Apr 7 - Tue, Apr 14

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Use the filters below to find and compare flights from Washington to London Stansted Airport that are best for you.

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Route

Depart

Return

Price

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 4/20

3:40 pm-10:25 pm

2 stops22h 45m

London Stansted

Mon 4/27

6:30 am-9:40 am

3 stops35h 10m

$558

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 4/16

3:40 pm-10:35 pm

2 stops22h 55m

London Stansted

Wed 4/29

6:30 am-9:35 am

3 stops35h 05m

$560

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 4/17

7:00 pm-9:10 pm

2 stops18h 10m

London Stansted

Fri 4/24

3:10 pm-5:55 pm

2 stops34h 45m

$569

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sun 4/5

7:00 pm-11:50 pm

2 stops20h 50m

London Stansted

Tue 4/14

6:30 am-9:35 am

3 stops35h 05m

$572

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 4/6

7:00 pm-10:50 pm

2 stops19h 50m

London Stansted

Mon 4/13

10:45 pm-9:35 am

3 stops42h 50m

$580

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 4/6

7:00 pm-10:50 pm

2 stops19h 50m

London Stansted

Mon 4/13

10:45 pm-9:35 am

3 stops42h 50m

$581

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 4/16

7:00 pm-12:30 am

3 stops21h 30m

London Stansted

Wed 4/29

6:30 am-9:35 am

3 stops35h 05m

$587

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sat 4/25

7:00 pm-11:15 pm

2 stops20h 15m

London Stansted

Wed 4/29

6:30 am-9:35 am

3 stops35h 05m

$589

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 4/20

3:40 pm-10:25 pm

2 stops22h 45m

London Stansted

Wed 4/29

6:30 am-9:53 pm

2 stops23h 23m

$596

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 4/7

7:00 pm-10:40 pm

2 stops19h 40m

London Stansted

Tue 4/14

6:30 am-2:19 pm

3 stops39h 49m

$597

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 State of Washington to London Stansted Airport

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

How long does it take to fly to London Stansted Airport?

The flight from State of Washington to London Stansted Airport depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Seattle (a popular airport in State of Washington) to London Heathrow Airport (the most popular airport in London Stansted Airport), then the flight time is 9h 15m on average. If you fly from Spokane (another popular airport in State of Washington) to London Heathrow Airport, then the average flight time is 12h 19m.

Cheap State of Washington to London Stansted Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to London Stansted Airport

Fastest flight time	12h 45m
Direct flights	None

The fastest flight from State of Washington to London Stansted Airport takes 12h 45m

There are no direct flights from State of Washington to London Stansted Airport. There are no popular flight routes from State of Washington to London Stansted Airport.

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When did momondo last update prices for flights from Washington to London Stansted Airport?
Prices for flights from Washington to London Stansted Airport are updated daily.
How old do you have to be to fly from Washington to London Stansted Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to London Stansted Airport.
What documentation or ID do you need to fly to London Stansted Airport?
The travel and health documents required for your trip to London Stansted Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Stansted Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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Hayes

Wembley

Dartford

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Watford

Cobham

Folkestone

Romford

Stansted

Richmond

Why use momondo?

Why should I use momondo to find a flight deal from Washington to London?

Finding the right flight to London from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

All flight searches from Washington to London on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to London from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Washington to London 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.

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Cheap flights from Washington to London from $218

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to London departing on 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from State of Washington to London Stansted Airport

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Cheap State of Washington to London Stansted Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to London Stansted Airport

Fastest flight time

Direct flights

Traveling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Washington to London?

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

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

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

An easier way to manage your London Stansted Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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