Cheap flights from Washington to London from $330

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 11/12. 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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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
2:35 pm - 4:35 pmSEA-STN
18h 00m2 stops
Multiple Airlines Logo
6:30 am - 5:00 pmSTN-SEA
18h 30m2 stops
$527Multiple Airlines
Find Deal
Fri, Nov 14 - Fri, Nov 21
Multiple Airlines Logo
2:35 pm - 6:05 pmSEA-STN
19h 30m2 stops
Multiple Airlines Logo
5:55 am - 5:00 pmSTN-SEA
19h 05m2 stops
$540Multiple Airlines
Find Deal
Sun, Nov 2 - Sat, Nov 8
Multiple Airlines Logo
2:35 pm - 7:35 pmSEA-STN
21h 00m2 stops
Multiple Airlines Logo
8:30 am - 5:00 pmSTN-SEA
16h 30m2 stops
$541Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
8:05 pm - 9:20 pmSEA-STN
17h 15m1 stop
Multiple Airlines Logo
6:30 am - 6:20 pmSTN-SEA
19h 50m1 stop
$545Multiple Airlines
Find Deal
Mon, Nov 10 - Wed, Nov 19
Multiple Airlines Logo
8:10 am - 9:50 amSEA-STN
17h 40m2 stops
Multiple Airlines Logo
5:00 pm - 12:10 pmSTN-SEA
27h 10m2 stops
$549Multiple Airlines
Find Deal
Tue, Nov 11 - Mon, Nov 17
Multiple Airlines Logo
8:05 pm - 4:35 pmSEA-STN
12h 30m1 stop
Multiple Airlines Logo
8:30 am - 6:20 pmSTN-SEA
17h 50m1 stop
$552Multiple Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 16
Multiple Airlines Logo
2:35 pm - 11:10 pmSEA-STN
24h 35m2 stops
Multiple Airlines Logo
5:55 am - 5:00 pmSTN-SEA
19h 05m2 stops
$560Multiple Airlines
Find Deal
Thu, Nov 13 - Thu, Nov 20
Multiple Airlines Logo
2:00 pm - 9:20 pmSEA-STN
23h 20m2 stops
Multiple Airlines Logo
9:45 pm - 7:16 pmSTN-SEA
29h 31m3 stops
$562Multiple Airlines
Find Deal
Mon, Nov 24 - Tue, Dec 9
Turkish Airlines Logo
1:35 pm - 10:10 pmPDX-STN
24h 35m2 stops
Turkish Airlines Logo
11:10 am - 2:42 pmSTN-PDX
35h 32m2 stops
$1,442Turkish Airlines
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Fri, Apr 3 - Mon, May 4
Turkish Airlines Logo
1:35 pm - 10:15 amPDX-STN
36h 40m2 stops
Turkish Airlines Logo
11:10 am - 2:42 pmSTN-PDX
35h 32m2 stops
$1,469Turkish Airlines
Find Deal
Sat, Apr 4 - Mon, Apr 13

Turkish Airlines flights from State of Washington to London Stansted Airport

Our best Turkish Airlines deals on State of Washington to London Stansted Airport flight tickets
Turkish Airlines
Apr 3
PDX1:35 pmPortland
24h 35m
2 stops
STN10:10 pmLondon Stansted
May 4
STN11:10 amLondon Stansted
35h 32m
2 stops
PDX2:42 pmPortland
Turkish Airlines
Apr 4
PDX1:35 pmPortland
36h 40m
2 stops
STN10:15 amLondon Stansted
Apr 13
STN11:10 amLondon Stansted
35h 32m
2 stops
PDX2:42 pmPortland
Turkish Airlines
Mar 24
PDX2:00 pmPortland
43h 20m
2 stops
STN4:20 pmLondon Stansted
Mar 29
STN5:45 pmLondon Stansted
52h 57m
2 stops
PDX2:42 pmPortland

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to London Stansted Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 13, 2025.
Use the filters below to find and compare flights from Washington to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 11/14

2:35 pm-4:35 pm

2 stops18h 00m

London Stansted

Fri 11/21

6:30 am-5:00 pm

2 stops18h 30m

$527

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sun 11/2

2:35 pm-6:05 pm

2 stops19h 30m

London Stansted

Sat 11/8

5:55 am-5:00 pm

2 stops19h 05m

$540

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 12/3

2:35 pm-7:35 pm

2 stops21h 00m

London Stansted

Wed 12/10

8:30 am-5:00 pm

2 stops16h 30m

$541

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 11/10

8:05 pm-9:20 pm

1 stop17h 15m

London Stansted

Wed 11/19

6:30 am-6:20 pm

1 stop19h 50m

$545

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 11/11

8:10 am-9:50 am

2 stops17h 40m

London Stansted

Mon 11/17

5:00 pm-12:10 pm

2 stops27h 10m

$549

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sun 11/9

8:05 pm-4:35 pm

1 stop12h 30m

London Stansted

Sun 11/16

8:30 am-6:20 pm

1 stop17h 50m

$552

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 11/13

2:35 pm-11:10 pm

2 stops24h 35m

London Stansted

Thu 11/20

5:55 am-5:00 pm

2 stops19h 05m

$560

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 11/24

2:00 pm-9:20 pm

2 stops23h 20m

London Stansted

Tue 12/9

9:45 pm-7:16 pm

3 stops29h 31m

$562

PortlandLondon

PDX - STN

PDXSTN

Portland

Fri 4/3

1:35 pm-10:10 pm

2 stops24h 35m

London Stansted

Mon 5/4

11:10 am-2:42 pm

2 stops35h 32m

$1,442

PortlandLondon

PDX - STN

PDXSTN

Portland

Sat 4/4

1:35 pm-10:15 am

2 stops36h 40m

London Stansted

Mon 4/13

11:10 am-2:42 pm

2 stops35h 32m

$1,469

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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 20m 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 40m.

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

Direct flights

None
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.
  • 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.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Guildford
Dartford
Hayes
Crawley
Chelmsford
Brentwood
Colchester
Ilford
Folkestone
Romford
Cobham
Stansted
Watford
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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1 adult
Wed 11/12
Wed 11/19

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