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Cheap flights from Washington to London Stansted Airport from £177

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STN
10 Sep — 17 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Stansted

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Stansted
Explore the most affordable flight options available from Washington to Stansted. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 August 2026.

Fri 25/915:55 -
1 stop15h 30m
Fri 2/1006:20 -
1 stop15h 25m
Deal found 11/8£475
Fri 25/915:55 -
1 stop12h 45m
Sun 4/1007:05 -
1 stop14h 40m
Deal found 6/8£479
Sun 27/915:55 -
1 stop17h 20m
Sun 11/1007:05 -
1 stop14h 40m
Deal found 10/8£480
Sat 10/1015:40 -
2 stops25h 00m
Sun 18/1007:25 -
2 stops21h 15m
Deal found 8/8£489
Fri 9/1015:40 -
2 stops25h 10m
Sun 18/1005:55 -
2 stops22h 45m
Deal found 7/8£489
Wed 23/908:00 -
2 stops29h 40m
Tue 29/917:10 -
2 stops31h 49m
Deal found 10/8£490
Sun 27/915:55 -
1 stop17h 20m
Sat 3/1008:35 -
1 stop13h 10m
Deal found 11/8£492
Fri 28/819:00 -
2 stops18h 10m
Mon 31/819:15 -
2 stops24h 35m
Deal found 8/8£671
Mon 28/915:30 -
2 stops21h 50m
Wed 7/1006:30 -
3 stops35h 01m
Deal found 8/8£672
Mon 28/915:30 -
2 stops23h 20m
Fri 9/1006:10 -
2 stops19h 45m
Deal found 7/8£684
Thu 22/1015:30 -
3 stops20h 50m
Wed 28/1006:25 -
2 stops18h 35m
Deal found 7/8£692
Tue 25/815:30 -
2 stops23h 10m
Mon 31/806:05 -
3 stops39h 45m
Deal found 9/8£700

Find flight deals from Washington to Stansted

Keep the following information in mind while searching for Washington to Stansted flight deals. Data was last updated 11 August 2026.

Round-trip from

£475

One-way from

£177

Popular in

June

Cheapest in

January

Average price

£626
25/9-2/10
  • 25/9-2/10
  • 2 total stops
  • 30h 55m total
  • Washington to London
Search Deals
6/9
  • 6/9
  • 2 total stops
  • 52h 40m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£119 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 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 Washington to Stansted 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 August 2026.
Use the filters below to find and compare flights from Washington to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 23/9

18:50-15:35

1 stop12h 45m

London Stansted

Tue 29/9

11:00-16:59

1 stop13h 59m

£668

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Tue 10/11

19:05-09:55

1 stop30h 50m

London Stansted

Fri 5/2

17:20-17:10

1 stop31h 50m

£689

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Mon 16/11

19:05-09:55

1 stop30h 50m

London Stansted

Sun 22/11

17:20-17:10

1 stop31h 50m

£695

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 21/10

19:15-09:55

1 stop30h 40m

London Stansted

Mon 9/11

10:55-17:10

1 stop38h 15m

£730

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 8/10

19:15-09:55

1 stop30h 40m

London Stansted

Sun 18/10

17:35-17:20

1 stop31h 45m

£746

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Thu 15/10

19:15-09:55

1 stop30h 40m

London Stansted

Thu 22/10

17:35-17:20

1 stop31h 45m

£786

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 13/9

19:15-16:40

1 stop37h 25m

London Stansted

Wed 23/9

17:45-17:20

1 stop31h 35m

£786

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sat 26/9

13:22-09:55

2 stops36h 33m

London Stansted

Mon 5/10

10:50-17:20

1 stop38h 30m

£840

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Wed 16/9

19:15-09:55

1 stop30h 40m

London Stansted

Wed 23/9

17:45-22:56

2 stops37h 11m

£867

SeattleLondon

SEA Seattle/Tacoma Intl - STN London Stansted

SEASTN

Seattle/Tacoma Intl

Sun 31/1

19:05-16:20

1 stop37h 15m

London Stansted

Wed 3/2

10:55-17:10

1 stop38h 15m

£883

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 44 resultsSorted by cheapest first
1
2
3
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5

Best time to book a flight from Washington to Stansted

Have a flexible travel schedule? Discover the best time to fly to Stansted from Washington 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 Washington to London Stansted Airport

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 Washington to Stansted. 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 State of Washington to London Stansted Airport?

    For as low as £651, Turkish Airlines can have you in London Stansted Airport from State of Washington in 37h 25m. There are 4778 mi between State of Washington and London Stansted Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Stansted 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

Travelling to a place near London Stansted Airport?

Book flights to London Stansted Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Dover
Romford
Borehamwood

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Stansted

See prices for flight routes from nearby airports that may be better suited for you.
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Yes, Cheapflights offers price alerts on Washington to Stansted flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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