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Cheap flights from London Stansted Airport to Washington from $476

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Stansted Airport to Washington departing on 1/25. 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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Find the cheapest flights from London Stansted Airport to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 am - 5:00 pmSTN-SEA
18h 30m2 stops
Multiple Airlines Logo
2:35 pm - 6:20 pmSEA-STN
19h 45m2 stops
$611Multiple Airlines
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Fri, Jan 16 - Tue, Jan 20
Multiple Airlines Logo
6:25 pm - 3:40 pmSTN-SEA
29h 15m2 stops
Multiple Airlines Logo
5:40 pm - 10:40 pmSEA-STN
21h 00m2 stops
$651Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
Multiple Airlines Logo
11:20 pm - 5:00 pmSTN-SEA
25h 40m3 stops
Multiple Airlines Logo
2:35 pm - 2:30 pmSEA-STN
15h 55m2 stops
$726Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 1
Multiple Airlines Logo
8:10 pm - 12:10 pmSTN-SEA
24h 00m2 stops
Multiple Airlines Logo
3:10 pm - 3:10 pmSEA-STN
16h 00m2 stops
$742Multiple Airlines
Find Deal
Fri, Feb 6 - Sun, Feb 15
Multiple Airlines Logo
3:00 pm - 12:10 pmSTN-SEA
29h 10m2 stops
Multiple Airlines Logo
3:10 pm - 7:40 pmSEA-STN
20h 30m2 stops
$745Multiple Airlines
Find Deal
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
3:00 pm - 12:10 pmSTN-SEA
29h 10m2 stops
Multiple Airlines Logo
3:10 pm - 7:40 pmSEA-STN
20h 30m2 stops
$749Multiple Airlines
Find Deal
Sun, Jan 11 - Sun, Jan 18
Multiple Airlines Logo
8:20 am - 5:00 pmSTN-SEA
16h 40m2 stops
Multiple Airlines Logo
2:35 pm - 3:45 pmSEA-STN
17h 10m2 stops
$792Multiple Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
Multiple Airlines Logo
6:30 am - 5:00 pmSTN-SEA
18h 30m2 stops
Multiple Airlines Logo
2:35 pm - 6:20 pmSEA-STN
19h 45m2 stops
$823Multiple Airlines
Find Deal
Wed, Dec 24 - Tue, Jan 6
Turkish Airlines Logo
5:45 pm - 5:15 pmSTN-SEA
31h 30m1 stop
Turkish Airlines Logo
7:10 pm - 10:10 pmSEA-STN
19h 00m1 stop
$1,051Turkish Airlines
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Tue, Apr 21 - Wed, Sep 30
Turkish Airlines Logo
6:15 am - 5:15 pmSTN-SEA
19h 00m1 stop
Turkish Airlines Logo
7:10 pm - 10:10 pmSEA-STN
19h 00m1 stop
$1,078Turkish Airlines
Find Deal
Fri, Apr 24 - Fri, Oct 9

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
Apr 21
STN5:45 pmLondon Stansted
31h 30m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Sep 30
SEA7:10 pmSeattle/Tacoma Intl
19h 00m
1 stop
STN10:10 pmLondon Stansted
$1,051
Find similar
Turkish Airlines
Apr 24
STN6:15 amLondon Stansted
19h 00m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Oct 9
SEA7:10 pmSeattle/Tacoma Intl
19h 00m
1 stop
STN10:10 pmLondon Stansted
$1,078
Find similar
Turkish Airlines
Apr 25
STN5:45 pmLondon Stansted
31h 30m
1 stop
SEA5:15 pmSeattle/Tacoma Intl
Oct 8
SEA7:10 pmSeattle/Tacoma Intl
37h 40m
1 stop
STN4:50 pmLondon Stansted
$1,079
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Stansted Airport to State of Washington 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 November 4, 2025.
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

Fri 1/16

6:30 am-5:00 pm

2 stops18h 30m

Seattle/Tacoma Intl

Tue 1/20

2:35 pm-6:20 pm

2 stops19h 45m

$611

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 11/26

6:25 pm-3:40 pm

2 stops29h 15m

Seattle/Tacoma Intl

Mon 12/1

5:40 pm-10:40 pm

2 stops21h 00m

$651

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 11/26

11:20 pm-5:00 pm

3 stops25h 40m

Seattle/Tacoma Intl

Mon 12/1

2:35 pm-2:30 pm

2 stops15h 55m

$726

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 2/6

8:10 pm-12:10 pm

2 stops24h 00m

Seattle/Tacoma Intl

Sun 2/15

3:10 pm-3:10 pm

2 stops16h 00m

$742

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 1/11

3:00 pm-12:10 pm

2 stops29h 10m

Seattle/Tacoma Intl

Sun 1/18

3:10 pm-7:40 pm

2 stops20h 30m

$745

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 1/11

3:00 pm-12:10 pm

2 stops29h 10m

Seattle/Tacoma Intl

Sun 1/18

3:10 pm-7:40 pm

2 stops20h 30m

$749

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 11/14

8:20 am-5:00 pm

2 stops16h 40m

Seattle/Tacoma Intl

Mon 11/17

2:35 pm-3:45 pm

2 stops17h 10m

$792

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 12/24

6:30 am-5:00 pm

2 stops18h 30m

Seattle/Tacoma Intl

Tue 1/6

2:35 pm-6:20 pm

2 stops19h 45m

$823

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 4/21

5:45 pm-5:15 pm

1 stop31h 30m

Seattle/Tacoma Intl

Wed 9/30

7:10 pm-10:10 pm

1 stop19h 00m

$1,051

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 4/24

6:15 am-5:15 pm

1 stop19h 00m

Seattle/Tacoma Intl

Fri 10/9

7:10 pm-10:10 pm

1 stop19h 00m

$1,078

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 Washington from

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?

Lufthansa 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

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.
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  • 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.

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