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Cheap flights from London Stansted Airport to Washington from £351

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
22 ago. — 29 ago.1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to Washington
Explore the most affordable flight options available from Stansted to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 julio 2026.

mié. 26/806:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
dom. 6/919:00
SEA
-
STN
2 stops20h 40m
Multiple Airlines
Deal found 18/7£531
mié. 26/806:30
STN
-
SEA
3 stops44h 15m
Multiple Airlines
lun. 31/819:00
SEA
-
STN
2 stops15h 50m
Multiple Airlines
Deal found 19/7£537
mar. 25/822:00
STN
-
SEA
3 stops43h 40m
Multiple Airlines
lun. 31/819:00
SEA
-
STN
2 stops15h 50m
Multiple Airlines
Deal found 20/7£543
mié. 26/806:30
STN
-
SEA
3 stops46h 30m
Multiple Airlines
dom. 30/819:00
SEA
-
STN
2 stops20h 40m
Multiple Airlines
Deal found 19/7£552
mié. 7/1020:15
STN
-
SEA
2 stops28h 55m
Multiple Airlines
lun. 19/1015:40
SEA
-
STN
2 stops17h 10m
Multiple Airlines
Deal found 19/7£555
mié. 26/806:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
jue. 27/815:40
SEA
-
STN
2 stops24h 50m
Multiple Airlines
Deal found 19/7£558
lun. 28/922:25
STN
-
SEA
3 stops28h 20m
Multiple Airlines
lun. 5/1015:40
SEA
-
STN
2 stops19h 10m
Multiple Airlines
Deal found 20/7£567
sáb. 10/1019:35
STN
-
SEA
3 stops31h 10m
Multiple Airlines
sáb. 24/1015:40
SEA
-
STN
2 stops18h 00m
Multiple Airlines
Deal found 18/7£582
lun. 7/918:00
STN
-
SEA
2 stops29h 40m
Multiple Airlines
mié. 7/1015:40
SEA
-
STN
3 stops21h 15m
Multiple Airlines
Deal found 21/7£585
mar. 1/922:00
STN
-
SEA
3 stops31h 00m
Multiple Airlines
mié. 30/919:00
SEA
-
STN
2 stops17h 20m
Multiple Airlines
Deal found 22/7£596
sáb. 22/806:35
STN
-
PDX
3 stops34h 56m
Multiple Airlines
vie. 28/819:00
PDX
-
STN
2 stops21h 50m
Multiple Airlines
Deal found 20/7£686
mié. 28/1006:40
STN
-
PDX
3 stops39h 01m
Multiple Airlines
sáb. 7/1114:45
PDX
-
STN
2 stops19h 40m
Multiple Airlines
Deal found 21/7£688

Find flight deals from Stansted to Washington

Keep the following information in mind while searching for Stansted to Washington flight deals. Data was last updated 23 julio 2026.

Round-trip from

£531

One-way from

£351

Popular in

December

Cheapest in

February

Average price

£631
26/8-6/9
  • 26/8-6/9
  • 5 total stops
  • 55h 50m total
  • London to Washington
Search Deals
7/12
  • 7/12
  • 3 total stops
  • 58h 55m total
  • London to Washington
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted to 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, Cheapflights users made 858,174 searches. Data last updated 23 julio 2026.
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 return flight

LondonSeattle

STN - SEA

STNSEA

London Stansted

mar. 22/9

17:35-17:20

1 stop31h 45m

Seattle/Tacoma Intl

mié. 14/10

10:42-09:55

2 stops39h 13m

£727

LondonSeattle

STN - SEA

STNSEA

London Stansted

sáb. 26/9

17:45-22:56

2 stops37h 11m

Seattle/Tacoma Intl

jue. 22/10

10:42-09:55

2 stops39h 13m

£733
Fastest return journey

LondonSeattle

STN - SEA

STNSEA

London Stansted

vie. 4/9

06:35-18:45

2 stops20h 10m

Seattle/Tacoma Intl

dom. 6/9

08:00-21:20

3 stops29h 20m

£754

LondonSeattle

STN - SEA

STNSEA

London Stansted

mié. 11/11

10:55-17:10

1 stop38h 15m

Seattle/Tacoma Intl

dom. 15/11

19:05-16:20

1 stop37h 15m

£766

LondonPortland

STN - PDX

STNPDX

London Stansted

vie. 7/8

06:35-09:31

3 stops34h 56m

Portland

dom. 9/8

10:10-23:20

3 stops29h 10m

£1,032

LondonSeattle

STN - SEA

STNSEA

London Stansted

mar. 1/9

17:35-20:43

2 stops35h 08m

Seattle/Tacoma Intl

vie. 11/9

19:15-09:55

1 stop30h 40m

£1,140

LondonSeattle

STN - SEA

STNSEA

London Stansted

jue. 20/8

17:35-17:20

1 stop31h 45m

Seattle/Tacoma Intl

mié. 26/8

19:15-16:40

1 stop37h 25m

£1,174

LondonPortland

STN - PDX

STNPDX

London Stansted

vie. 13/11

17:20-21:02

2 stops35h 42m

Portland

vie. 20/11

13:19-09:55

2 stops36h 36m

£1,263

LondonPortland

STN - PDX

STNPDX

London Stansted

jue. 1/10

17:35-19:16

2 stops33h 41m

Portland

mié. 7/10

13:03-16:40

2 stops43h 37m

£1,331

LondonPortland

STN - PDX

STNPDX

London Stansted

sáb. 3/10

17:45-19:19

2 stops57h 34m

Portland

sáb. 10/10

13:13-09:55

2 stops36h 42m

£1,367

Flights are sorted by cheapest return flights first.

Deals found on 22/7

Showing 1-10 of 33 resultsSorted by cheapest first
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Best time to book a flight from Stansted to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Stansted with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Stansted Airport to Washington

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Stansted to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Stansted Airport to State of Washington?

    Airlines like Turkish Airlines fly from London Stansted Airport to State of Washington in about 31h 45m. The time it takes to get you to your destination can typically vary by up to . London Stansted Airport and State of Washington are separated by a distance of 4778 mi.

  • Can I find deals for flights from Stansted to Washington that include hotel bookings?

    Yes. In addition to deals on Stansted to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Stansted to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Washington.

  • Can I find deals for business class flights from Stansted to Washington?

    Yes. Cheapflights offers flight deals from Stansted to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Stansted to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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London City to Boston flights
Luton to Los Angeles flights
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Heathrow to Denver flights
Stansted to Boston flights
Gatwick to O'Hare Intl flights
Luton to Miami flights
Gatwick to Seattle flights
Gatwick to San Francisco flights
Gatwick to Dallas/Fort Worth flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Stansted to Washington?

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Why should you use Cheapflights to find cheap flight tickets from Stansted to Washington?

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Can Cheapflights find flights from Stansted to Washington with no change fees?

Yes, we can. To see specific flights from Stansted to Washington with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Stansted to Washington become cheaper?

Not ready to book yet? You can track prices for flights from Stansted to Washington on Cheapflights with our Price Alert feature and get notified when better prices are available.

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