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Cheap flights from Washington to London Stansted Airport from £248

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — STN
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 3 November 2025.

Tue 2/1214:35SEA - STN
2 stops19h 45mMultiple Airlines
Wed 10/1206:30STN - SEA
2 stops18h 30mMultiple Airlines
Deal found 2/11£395
Mon 1/1220:05SEA - STN
1 stop14h 15mMultiple Airlines
Mon 8/1213:30STN - SEA
1 stop12h 50mMultiple Airlines
Deal found 2/11£417
Sun 23/1108:10SEA - STN
2 stops18h 55mMultiple Airlines
Tue 2/1221:45STN - SEA
3 stops29h 31mMultiple Airlines
Deal found 1/11£418
Mon 1/1214:35SEA - STN
2 stops15h 55mMultiple Airlines
Sun 14/1206:10STN - SEA
2 stops18h 50mMultiple Airlines
Deal found 2/11£430
Tue 2/1208:10SEA - STN
2 stops26h 10mMultiple Airlines
Tue 9/1221:45STN - SEA
3 stops29h 31mMultiple Airlines
Deal found 2/11£433
Sun 30/1115:10SEA - STN
2 stops23h 40mMultiple Airlines
Sun 7/1209:35STN - SEA
2 stops34h 35mMultiple Airlines
Deal found 1/11£451
Fri 5/1209:50PDX - STN
3 stops22h 45mMultiple Airlines
Wed 10/1218:05STN - PDX
3 stops32h 25mMultiple Airlines
Deal found 1/11£456
Sat 29/1105:50SEA - STN
3 stops28h 20mMultiple Airlines
Sat 6/1218:55STN - SEA
3 stops32h 21mMultiple Airlines
Deal found 1/11£460
Tue 11/1114:35SEA - STN
2 stops15h 45mMultiple Airlines
Tue 18/1106:30STN - SEA
2 stops18h 30mMultiple Airlines
Deal found 2/11£475
Sun 7/1214:35SEA - STN
2 stops21h 30mMultiple Airlines
Sun 14/1206:30STN - SEA
2 stops18h 30mMultiple Airlines
Deal found 2/11£486
Thu 4/1214:45PDX - STN
2 stops23h 25mMultiple Airlines
Fri 12/1208:35STN - PDX
2 stops16h 25mMultiple Airlines
Deal found 1/11£491
Fri 28/1115:10SEA - STN
2 stops19h 50mMultiple Airlines
Sat 6/1219:25STN - SEA
3 stops31h 51mMultiple Airlines
Deal found 1/11£509

Cheap flight deals from Washington to Stansted

Keep the following information in mind while searching for Washington to Stansted flight deals. Data was last updated 3 November 2025.

Round-trip from

£395

One-way from

£248

Popular in

June

Cheapest in

October

Average price

£525
2/12-10/12
  • 2/12-10/12
  • 4 total stops
  • 38h 15m total
  • Washington to London
Search Deals
8/12
  • 8/12
  • 3 total stops
  • 45h 38m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£80 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 3 November 2025.
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 2/12

14:35-18:20

2 stops19h 45m

London Stansted

Wed 10/12

06:30-17:00

2 stops18h 30m

£395

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sun 30/11

15:10-22:50

2 stops23h 40m

London Stansted

Sun 7/12

09:35-12:10

2 stops34h 35m

£451

PortlandLondon

PDX - STN

PDXSTN

Portland

Fri 5/12

09:50-16:35

3 stops22h 45m

London Stansted

Wed 10/12

18:05-18:30

3 stops32h 25m

£456

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Thu 15/1

14:00-00:20

2 stops26h 20m

London Stansted

Wed 21/1

15:35-12:10

2 stops28h 35m

£479

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 14/11

20:05-16:35

1 stop12h 30m

London Stansted

Fri 21/11

08:30-18:20

1 stop17h 50m

£484

PortlandLondon

PDX - STN

PDXSTN

Portland

Wed 3/12

09:50-23:10

3 stops29h 20m

London Stansted

Wed 10/12

18:05-18:30

3 stops32h 25m

£527

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Fri 5/12

14:35-20:35

2 stops22h 00m

London Stansted

Mon 8/12

21:20-17:00

2 stops27h 40m

£529

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Sun 22/3

20:00-16:20

1 stop37h 20m

London Stansted

Tue 31/3

17:45-17:15

1 stop31h 30m

£530

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 1/12

14:35-15:45

2 stops17h 10m

London Stansted

Wed 10/12

06:00-17:00

2 stops19h 00m

£547

SeattleLondon

SEA - STN

SEASTN

Seattle/Tacoma Intl

Mon 6/4

19:10-10:15

1 stop31h 05m

London Stansted

Thu 7/5

17:45-17:15

1 stop31h 30m

£548

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 40 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
Croydon
Slough
Gatwick
Hounslow
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Crawley
Brentford
Romford
Chichester
Ipswich
Bedford
Eastbourne

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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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