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Cheap flights from Washington to London Stansted Airport from £168

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STN
21 Mar — 28 Mar1
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 19 February 2026.

Sun 19/415:40
SEA
-
STN
2 stops19h 55m
Multiple Airlines
Tue 28/407:15
STN
-
SEA
2 stops21h 25m
Multiple Airlines
Deal found 16/2£407
Fri 24/419:00
SEA
-
STN
2 stops17h 30m
Multiple Airlines
Tue 28/406:30
STN
-
SEA
2 stops23h 23m
Multiple Airlines
Deal found 15/2£410
Mon 13/415:40
SEA
-
STN
2 stops24h 40m
Multiple Airlines
Sat 18/406:35
STN
-
SEA
3 stops35h 00m
Multiple Airlines
Deal found 18/2£414
Mon 13/410:20
SEA
-
STN
3 stops28h 05m
Multiple Airlines
Sun 26/418:55
STN
-
SEA
2 stops25h 25m
Multiple Airlines
Deal found 18/2£416
Tue 7/419:00
SEA
-
STN
2 stops19h 40m
Multiple Airlines
Mon 13/422:45
STN
-
SEA
3 stops42h 50m
Multiple Airlines
Deal found 18/2£418
Fri 6/315:10
SEA
-
STN
2 stops21h 35m
Multiple Airlines
Mon 9/320:30
STN
-
SEA
2 stops23h 40m
Multiple Airlines
Deal found 17/2£427
Wed 15/405:40
SEA
-
STN
3 stops24h 05m
Multiple Airlines
Sun 19/407:25
STN
-
SEA
3 stops22h 28m
Multiple Airlines
Deal found 18/2£433
Wed 22/418:50
SEA
-
STN
2 stops18h 50m
Multiple Airlines
Tue 28/419:15
STN
-
SEA
2 stops25h 05m
Multiple Airlines
Deal found 16/2£445
Thu 16/415:30
PDX
-
STN
2 stops25h 00m
Multiple Airlines
Tue 28/422:00
STN
-
PDX
3 stops43h 10m
Multiple Airlines
Deal found 18/2£445
Fri 22/519:00
SEA
-
STN
2 stops21h 50m
Multiple Airlines
Sat 30/511:25
STN
-
SEA
2 stops17h 15m
Multiple Airlines
Deal found 16/2£450
Tue 14/410:20
SEA
-
STN
3 stops24h 40m
Multiple Airlines
Sun 19/406:45
STN
-
SEA
3 stops24h 05m
Multiple Airlines
Deal found 17/2£451
Mon 6/415:30
PDX
-
STN
2 stops25h 10m
Multiple Airlines
Mon 13/406:45
STN
-
PDX
2 stops19h 15m
Multiple Airlines
Deal found 18/2£454

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 19 February 2026.

Round-trip from

£407

One-way from

£168

Popular in

June

Cheapest in

January

Average price

£509
19/4-28/4
  • 19/4-28/4
  • 4 total stops
  • 41h 20m total
  • Washington to London
Search Deals
20/4
  • 20/4
  • 2 total stops
  • 22h 55m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 19 February 2026.
Use the filters below to find and compare flights from Washington to London Stansted Airport that are best for you.

Fly from

Washington

Fly to

Stansted

Route

Depart

Return

Price

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 2/6

15:55-14:35

1 stop14h 40m

London Stansted

Tue 9/6

07:10-13:45

1 stop14h 35m

£535

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 20/4

19:10-16:50

1 stop37h 40m

London Stansted

Thu 7/5

17:35-17:15

1 stop31h 40m

£551

PortlandLondon

PDX - STN

PDXSTN

Portland

Mon 11/5

15:30-21:25

2 stops21h 55m

London Stansted

Fri 29/5

06:35-13:50

3 stops39h 15m

£553

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 23/3

20:00-22:15

1 stop19h 15m

London Stansted

Wed 8/4

06:15-17:15

1 stop19h 00m

£558

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sun 19/4

19:10-16:50

1 stop37h 40m

London Stansted

Thu 30/4

17:45-17:15

1 stop31h 30m

£559

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Wed 25/3

20:00-22:15

1 stop19h 15m

London Stansted

Fri 3/4

06:15-17:15

1 stop19h 00m

£596

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 16/3

20:00-09:50

1 stop30h 50m

London Stansted

Sun 5/4

17:45-17:15

1 stop31h 30m

£603

PortlandLondon

PDX - STN

PDXSTN

Portland

Tue 28/7

15:30-22:40

2 stops23h 10m

London Stansted

Tue 25/8

21:00-17:55

3 stops28h 55m

£610

PortlandLondon

PDX - STN

PDXSTN

Portland

Sun 26/4

08:00-19:55

3 stops27h 55m

London Stansted

Mon 4/5

22:45-09:30

3 stops42h 45m

£611

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Tue 14/4

19:10-16:50

1 stop37h 40m

London Stansted

Thu 23/4

17:45-17:15

1 stop31h 30m

£614

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 38 results
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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.

  • 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.

Travelling to a place near London Stansted Airport?

Book flights to London Stansted Airport if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Wembley
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Kingston upon Thames
Eastbourne
Ipswich
Chelmsford
Bedford
Crawley
Romford

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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