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Cheap flights from London Stansted Airport to Washington from £340

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
31 Aug — 7 Sep1
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 1 August 2026.

Tue 1/910:45
STN
-
SEA
2 stops33h 00m
Multiple Airlines
Tue 8/919:00
SEA
-
STN
2 stops21h 10m
Multiple Airlines
Deal found 1/8£467
Sat 19/913:55
STN
-
SEA
2 stops31h 50m
Multiple Airlines
Sat 3/1015:55
SEA
-
STN
2 stops18h 35m
Multiple Airlines
Deal found 30/7£481
Fri 4/911:40
STN
-
SEA
2 stops34h 05m
Multiple Airlines
Sun 20/915:55
SEA
-
STN
2 stops21h 25m
Multiple Airlines
Deal found 1/8£490
Tue 22/911:00
STN
-
SEA
1 stop13h 59m
Lufthansa
Wed 30/918:50
SEA
-
STN
1 stop12h 45m
Lufthansa
Deal found 30/7£496
Mon 21/913:20
STN
-
SEA
2 stops32h 25m
Multiple Airlines
Tue 29/915:55
SEA
-
STN
2 stops22h 25m
Multiple Airlines
Deal found 29/7£503
Thu 24/906:00
STN
-
SEA
3 stops35h 40m
Multiple Airlines
Mon 5/1015:40
SEA
-
STN
2 stops19h 10m
Multiple Airlines
Deal found 1/8£505
Thu 15/1017:35
STN
-
SEA
2 stops30h 25m
Multiple Airlines
Thu 22/1018:05
SEA
-
STN
2 stops18h 55m
Multiple Airlines
Deal found 30/7£522
Sat 10/1019:35
STN
-
PDX
3 stops45h 56m
Multiple Airlines
Tue 10/1114:45
PDX
-
STN
2 stops20h 05m
Multiple Airlines
Deal found 30/7£661
Wed 7/1007:00
STN
-
PDX
2 stops18h 55m
Multiple Airlines
Sat 24/1015:30
PDX
-
STN
2 stops24h 20m
Multiple Airlines
Deal found 28/7£667
Fri 4/921:25
STN
-
PDX
2 stops23h 40m
Multiple Airlines
Fri 11/919:00
PDX
-
STN
2 stops17h 30m
Multiple Airlines
Deal found 27/7£688
Sat 10/1008:05
STN
-
PDX
3 stops33h 26m
Multiple Airlines
Tue 27/1015:45
PDX
-
STN
2 stops24h 10m
Multiple Airlines
Deal found 28/7£690
Mon 14/908:30
STN
-
PDX
3 stops33h 01m
Multiple Airlines
Mon 21/915:30
PDX
-
STN
2 stops23h 20m
Multiple Airlines
Deal found 31/7£703

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 1 August 2026.

Round-trip from

£481

One-way from

£340

Popular in

December

Cheapest in

February

Average price

£594
19/9-3/10
  • 19/9-3/10
  • 4 total stops
  • 50h 25m total
  • London to Washington
Search Deals
15/9
  • 15/9
  • 3 total stops
  • 37h 40m 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 August 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 1 August 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

LondonPortland

STN - PDX

STNPDX

London Stansted

Thu 10/9

06:30-09:31

3 stops35h 01m

Portland

Wed 23/9

15:30-21:40

2 stops22h 10m

£710
Fastest return journey

LondonPortland

STN - PDX

STNPDX

London Stansted

Fri 4/9

21:25-13:05

2 stops23h 40m

Portland

Fri 11/9

19:00-00:50

2 stops21h 50m

£710

LondonPortland

STN - PDX

STNPDX

London Stansted

Wed 2/9

18:20-13:35

2 stops27h 15m

Portland

Wed 9/9

19:00-21:40

2 stops18h 40m

£711

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 1/10

17:35-17:20

1 stop31h 45m

Seattle/Tacoma Intl

Thu 8/10

19:15-16:50

1 stop37h 35m

£730

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 22/9

17:35-17:20

1 stop31h 45m

Seattle/Tacoma Intl

Mon 28/9

13:19-09:55

2 stops36h 36m

£753

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 26/9

17:45-22:56

2 stops37h 11m

Seattle/Tacoma Intl

Thu 22/10

10:42-09:55

2 stops39h 13m

£753

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 27/10

17:20-15:32

2 stops29h 12m

Seattle/Tacoma Intl

Sun 8/11

19:05-16:20

1 stop37h 15m

£753

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 15/9

17:35-22:45

2 stops37h 10m

Seattle/Tacoma Intl

Tue 22/9

19:15-16:40

1 stop37h 25m

£762

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 15/9

17:35-22:45

2 stops37h 10m

Seattle/Tacoma Intl

Fri 25/9

19:15-09:55

1 stop30h 40m

£762

LondonPortland

STN - PDX

STNPDX

London Stansted

Tue 1/9

09:10-13:50

3 stops36h 40m

Portland

Thu 10/9

15:30-00:30

2 stops25h 00m

£768

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 42 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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Stansted to Miami flights
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London City to Los Angeles flights
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Heathrow to Tampa flights
Luton to Los Angeles flights
Gatwick to San Francisco flights
Heathrow to Ontario flights
Heathrow to Baltimore flights
Luton to Miami flights
Stansted to San Francisco flights
London City to Boston flights
Gatwick to Dallas/Fort Worth flights
Gatwick to O'Hare Intl flights
London City to San Francisco flights
Heathrow to Denver flights
Stansted to O'Hare Intl flights
Gatwick to Fort Lauderdale flights
Luton to Orlando 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.

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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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