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Cheap flights from London Stansted Airport to Washington from £300

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
23 Jul — 30 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 23 June 2026.

Fri 4/920:25
STN
-
SEA
2 stops23h 20m
Multiple Airlines
Sun 6/919:00
SEA
-
STN
2 stops20h 20m
Multiple Airlines
Deal found 18/6£491
Wed 19/822:45
STN
-
SEA
3 stops43h 22m
Multiple Airlines
Mon 31/815:40
SEA
-
STN
2 stops23h 40m
Multiple Airlines
Deal found 19/6£504
Sun 27/910:15
STN
-
SEA
1 stop14h 44m
Lufthansa
Thu 1/1018:50
SEA
-
STN
1 stop12h 50m
Lufthansa
Deal found 19/6£506
Tue 25/822:00
STN
-
SEA
3 stops43h 40m
Multiple Airlines
Fri 28/815:40
SEA
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 20/6£512
Tue 25/822:00
STN
-
SEA
3 stops43h 40m
Multiple Airlines
Sat 29/815:40
SEA
-
STN
2 stops23h 40m
Multiple Airlines
Deal found 20/6£513
Thu 27/806:30
STN
-
SEA
3 stops35h 10m
Multiple Airlines
Mon 31/815:40
SEA
-
STN
2 stops21h 40m
Multiple Airlines
Deal found 20/6£518
Fri 4/913:10
STN
-
SEA
2 stops32h 35m
Multiple Airlines
Tue 8/915:55
SEA
-
STN
2 stops23h 25m
Multiple Airlines
Deal found 22/6£524
Sun 23/822:00
STN
-
SEA
3 stops43h 40m
Multiple Airlines
Sat 29/815:40
SEA
-
STN
2 stops23h 40m
Multiple Airlines
Deal found 21/6£541
Fri 28/808:30
STN
-
PDX
3 stops33h 01m
Multiple Airlines
Mon 31/813:05
PDX
-
STN
2 stops17h 45m
Multiple Airlines
Deal found 22/6£731
Tue 22/906:30
STN
-
PDX
3 stops39h 20m
Multiple Airlines
Wed 7/1015:30
PDX
-
STN
2 stops20h 00m
Multiple Airlines
Deal found 22/6£737
Thu 9/708:25
STN
-
PDX
3 stops33h 06m
Multiple Airlines
Thu 16/715:30
PDX
-
STN
2 stops23h 05m
Multiple Airlines
Deal found 18/6£790
Mon 10/822:25
STN
-
PDX
3 stops47h 25m
Multiple Airlines
Mon 14/913:05
PDX
-
STN
2 stops20h 30m
Multiple Airlines
Deal found 18/6£797

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 June 2026.

Round-trip from

£491

One-way from

£300

Popular in

July

Cheapest in

February

Average price

£632
4/9-6/9
  • 4/9-6/9
  • 4 total stops
  • 43h 40m total
  • London to Washington
Search Deals
28/8
  • 28/8
  • 3 total stops
  • 39h 15m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 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 23 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

Thu 24/9

17:35-17:20

1 stop31h 45m

Seattle/Tacoma Intl

Mon 28/9

19:15-16:50

1 stop37h 35m

£765

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 14/9

10:50-17:20

1 stop38h 30m

Seattle/Tacoma Intl

Mon 21/9

19:15-09:55

1 stop30h 40m

£854

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 7/7

06:55-17:20

1 stop18h 25m

Seattle/Tacoma Intl

Mon 20/7

12:35-22:10

1 stop25h 35m

£929

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 26/9

17:45-22:56

2 stops37h 11m

Seattle/Tacoma Intl

Thu 22/10

19:15-09:55

1 stop30h 40m

£976

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 27/10

17:20-18:10

1 stop31h 50m

Seattle/Tacoma Intl

Sun 8/11

19:05-16:20

1 stop37h 15m

£1,010

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 24/10

17:45-18:10

1 stop32h 25m

Seattle/Tacoma Intl

Sat 31/10

20:05-09:55

1 stop30h 50m

£1,043

LondonPortland

STN - PDX

STNPDX

London Stansted

Sun 5/7

22:05-13:10

2 stops23h 05m

Portland

Sun 12/7

10:10-23:20

3 stops29h 10m

£1,074

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 4/7

17:45-17:20

1 stop31h 35m

Seattle/Tacoma Intl

Fri 17/7

19:15-22:10

1 stop18h 55m

£1,080

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 9/7

17:35-17:20

1 stop31h 45m

Seattle/Tacoma Intl

Thu 23/7

19:15-16:50

1 stop37h 35m

£1,110
Fastest return journey

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 22/7

11:15-20:40

2 stops17h 25m

Seattle/Tacoma Intl

Thu 6/8

19:00-22:35

2 stops19h 35m

£1,148

Flights are sorted by cheapest return flights first.

Deals found on 20/6

Showing 1-10 of 34 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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Heathrow to Dulles Intl flights
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Gatwick to Miami flights
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Heathrow to Ontario flights
Heathrow to Sky Harbor Intl flights
London City to Orlando flights
Heathrow to George Bush Intcntl flights
Gatwick to San Francisco flights
Stansted to Boston flights
Luton to Miami flights
Gatwick to Dallas/Fort Worth flights
London City to San Francisco flights
Stansted to San Francisco flights
Gatwick to O'Hare Intl flights
Luton to Los Angeles flights
Gatwick to Dulles Intl flights
Stansted to O'Hare Intl 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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