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Cheap flights from London Stansted Airport to Washington from £315

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
11 Jul — 18 Jul1
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 11 June 2026.

Thu 3/906:00
STN
-
SEA
3 stops44h 45m
Multiple Airlines
Mon 14/919:00
SEA
-
STN
2 stops19h 25m
Multiple Airlines
Deal found 10/6£527
Mon 14/912:00
STN
-
SEA
2 stops33h 45m
Multiple Airlines
Tue 22/915:55
SEA
-
STN
2 stops20h 40m
Multiple Airlines
Deal found 9/6£536
Wed 26/822:45
STN
-
SEA
3 stops30h 15m
Multiple Airlines
Mon 7/915:40
SEA
-
STN
2 stops17h 10m
Multiple Airlines
Deal found 8/6£542
Mon 31/820:45
STN
-
SEA
3 stops44h 55m
Multiple Airlines
Sun 6/919:00
SEA
-
STN
2 stops20h 20m
Multiple Airlines
Deal found 10/6£544
Mon 17/808:15
STN
-
SEA
2 stops35h 30m
Multiple Airlines
Sat 29/819:00
SEA
-
STN
2 stops21h 05m
Multiple Airlines
Deal found 9/6£553
Fri 21/806:20
STN
-
SEA
3 stops35h 20m
Multiple Airlines
Fri 11/915:40
SEA
-
STN
2 stops21h 30m
Multiple Airlines
Deal found 10/6£556
Tue 18/806:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
Tue 1/923:25
SEA
-
STN
2 stops16h 45m
Multiple Airlines
Deal found 6/6£572
Sun 13/922:05
STN
-
SEA
3 stops30h 59m
Multiple Airlines
Mon 21/915:40
SEA
-
STN
2 stops19h 35m
Multiple Airlines
Deal found 7/6£574
Tue 1/922:00
STN
-
SEA
3 stops31h 00m
Multiple Airlines
Tue 22/919:00
SEA
-
STN
2 stops21h 10m
Multiple Airlines
Deal found 10/6£577
Thu 25/606:30
STN
-
SEA
3 stops22h 30m
Multiple Airlines
Sat 11/715:40
SEA
-
STN
2 stops21h 20m
Multiple Airlines
Deal found 10/6£578
Sat 5/906:35
STN
-
SEA
3 stops46h 25m
Multiple Airlines
Sun 4/1015:40
SEA
-
STN
2 stops23h 40m
Multiple Airlines
Deal found 6/6£581
Tue 7/708:10
STN
-
PDX
3 stops33h 21m
Multiple Airlines
Tue 14/715:30
PDX
-
STN
2 stops18h 05m
Multiple Airlines
Deal found 9/6£834

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 11 June 2026.

Round-trip from

£519

One-way from

£315

Popular in

July

Cheapest in

February

Average price

£625
31/8-9/12
  • 31/8-9/12
  • 5 total stops
  • 57h 22m total
  • London to Washington
Search Deals
23/9
  • 23/9
  • 3 total stops
  • 48h 20m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 11 June 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

Wed 8/7

21:20-16:00

2 stops26h 40m

Seattle/Tacoma Intl

Wed 22/7

17:40-18:30

2 stops16h 50m

£620

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 30/7

06:30-09:40

3 stops35h 10m

Seattle/Tacoma Intl

Sat 22/8

19:00-00:05

2 stops21h 05m

£731

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 1/7

17:45-17:20

1 stop31h 35m

Seattle/Tacoma Intl

Wed 8/7

19:15-22:10

1 stop18h 55m

£941

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 23/8

06:40-17:20

1 stop18h 40m

Seattle/Tacoma Intl

Sun 13/9

19:15-22:10

1 stop18h 55m

£975
Fastest return journey

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 8/7

06:55-17:20

1 stop18h 25m

Seattle/Tacoma Intl

Wed 22/7

19:15-22:10

1 stop18h 55m

£984

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 26/9

17:45-17:20

1 stop31h 35m

Seattle/Tacoma Intl

Thu 22/10

08:46-16:40

2 stops23h 54m

£992

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 22/7

17:45-17:20

1 stop31h 35m

Seattle/Tacoma Intl

Wed 29/7

19:15-16:40

1 stop37h 25m

£1,108

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 30/6

06:55-17:20

1 stop18h 25m

Seattle/Tacoma Intl

Thu 30/7

08:45-16:40

2 stops23h 55m

£1,128

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 28/7

06:55-17:20

1 stop18h 25m

Seattle/Tacoma Intl

Sat 8/8

12:35-09:55

1 stop37h 20m

£1,133

LondonPortland

STN - PDX

STNPDX

London Stansted

Fri 3/7

06:55-22:25

2 stops23h 30m

Portland

Tue 14/7

13:14-16:40

2 stops43h 26m

£1,234

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Showing 1-10 of 37 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 35m. 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.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
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Gatwick to Newark flights
London City to John F Kennedy Intl flights
Heathrow to Orlando flights
Gatwick to LaGuardia flights
Heathrow to Boston flights
Luton to John F Kennedy Intl flights
Heathrow to Miami flights
Stansted to Newark flights
Luton to Newark flights
London City to Newark flights
Heathrow to San Francisco flights
Heathrow to Dulles Intl flights
Gatwick to Orlando flights
Heathrow to Dallas/Fort Worth flights
Gatwick to Boston flights
Heathrow to O'Hare Intl flights
Heathrow to Baltimore flights
Heathrow to Seattle flights
Heathrow to Las Vegas flights
Gatwick to Los Angeles flights
Gatwick to Miami flights
Stansted to Los Angeles flights
London City to Los Angeles flights
Heathrow to Hobby flights
Stansted to Orlando flights
London City to Miami flights
Stansted to Miami flights
Heathrow to Tampa flights
Heathrow to Atlanta flights
London City to Boston flights
Stansted to LaGuardia flights
Heathrow to Ontario flights
London City to Orlando flights
Heathrow to George Bush Intcntl flights
Luton to Miami flights
Stansted to Boston flights
Gatwick to San Francisco flights
Heathrow to Reagan-National flights
Gatwick to Dulles Intl flights
London City to San Francisco flights
Stansted to San Francisco flights
Heathrow to Philadelphia flights
London City to Dulles Intl flights
Heathrow to Denver 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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