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Cheap flights from London Stansted Airport to Washington from £281

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
21 Nov — 28 Nov1
1 adult
1 adult, Economy

Cheap flight deals from Stansted to Washington

Keep the following information in mind while searching for Stansted to Washington flight deals. Data was last updated 22 October 2025.

Round-trip from

£498

One-way from

£281

Popular in

July

Cheapest in

January

Average price

£542
23/11-30/11
  • 23/11-30/11
  • 2 total stops
  • 30h 20m total
  • London to Washington
Search Deals
11/12
  • 11/12
  • 2 total stops
  • 40h 07m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find 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 22 October 2025.

Fri 31/1006:30STN - SEA
1 stop19h 50mMultiple Airlines
Mon 3/1120:05SEA - STN
1 stop17h 15mMultiple Airlines
Deal found 20/10£486
Sun 23/1108:30STN - SEA
1 stop17h 50mMultiple Airlines
Sun 30/1120:05SEA - STN
1 stop12h 30mMultiple Airlines
Deal found 20/10£498
Mon 17/1106:10STN - PDX
2 stops18h 50mMultiple Airlines
Mon 24/1109:50PDX - STN
3 stops30h 05mMultiple Airlines
Deal found 20/10£667
Thu 4/1206:15STN - SEA
2 stops18h 45mMultiple Airlines
Thu 11/1208:10SEA - STN
3 stops31h 25mMultiple Airlines
Deal found 19/10£670
Mon 17/1106:10STN - PDX
2 stops18h 50mMultiple Airlines
Mon 1/1214:45PDX - STN
2 stops19h 35mMultiple Airlines
Deal found 20/10£697
Mon 10/1120:05STN - SEA
2 stops24h 05mMultiple Airlines
Wed 12/1115:10SEA - STN
2 stops23h 05mMultiple Airlines
Deal found 22/10£717
Thu 4/1206:15STN - SEA
2 stops18h 45mMultiple Airlines
Mon 15/1214:35SEA - STN
2 stops25h 20mMultiple Airlines
Deal found 21/10£735
Mon 24/1106:10STN - PDX
2 stops18h 50mMultiple Airlines
Mon 8/1214:45PDX - STN
2 stops19h 35mMultiple Airlines
Deal found 21/10£740
Tue 23/1216:10STN - SEA
2 stops29h 10mMultiple Airlines
Sun 4/115:10SEA - STN
2 stops23h 00mMultiple Airlines
Deal found 20/10£743
Thu 20/1106:15STN - SEA
2 stops18h 45mMultiple Airlines
Wed 3/1220:05SEA - STN
1 stop13h 45mMultiple Airlines
Deal found 21/10£759
Mon 3/1120:05STN - SEA
2 stops24h 05mMultiple Airlines
Wed 5/1115:10SEA - STN
2 stops23h 05mMultiple Airlines
Deal found 20/10£761
Sat 6/1219:55STN - SEA
3 stops34h 21mMultiple Airlines
Sat 13/1205:50SEA - STN
3 stops26h 45mMultiple Airlines
Deal found 22/10£783

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 22 October 2025.
Use the filters below to find and compare flights from London Stansted Airport to Washington that are best for you.

Fly from

Stansted

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 23/11

08:30-18:20

1 stop17h 50m

Seattle/Tacoma Intl

Sun 30/11

20:05-16:35

1 stop12h 30m

£498

LondonPortland

STN - PDX

STNPDX

London Stansted

Mon 17/11

06:10-17:00

2 stops18h 50m

Portland

Mon 24/11

09:50-23:55

3 stops30h 05m

£667

LondonPortland

STN - PDX

STNPDX

London Stansted

Mon 17/11

06:10-17:00

2 stops18h 50m

Portland

Mon 1/12

14:45-18:20

2 stops19h 35m

£697

LondonPortland

STN - PDX

STNPDX

London Stansted

Mon 24/11

06:10-17:00

2 stops18h 50m

Portland

Mon 8/12

14:45-18:20

2 stops19h 35m

£697

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 4/12

06:15-17:00

2 stops18h 45m

Seattle/Tacoma Intl

Mon 15/12

14:35-23:55

2 stops25h 20m

£735

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 6/12

19:55-22:16

3 stops34h 21m

Seattle/Tacoma Intl

Sat 13/12

05:50-16:35

3 stops26h 45m

£783

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 17/11

06:00-15:40

2 stops17h 40m

Seattle/Tacoma Intl

Mon 15/12

14:35-14:30

2 stops15h 55m

£803

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 23/12

20:25-17:00

2 stops28h 35m

Seattle/Tacoma Intl

Tue 6/1

08:10-09:50

2 stops17h 40m

£815

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 29/12

06:30-09:16

3 stops34h 46m

Seattle/Tacoma Intl

Tue 10/3

10:05-22:25

3 stops29h 20m

£823

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 3/11

06:00-15:40

2 stops17h 40m

Seattle/Tacoma Intl

Wed 5/11

14:35-20:35

2 stops22h 00m

£832

Flights are sorted by cheapest return flights first.

Deals found on 21/10

Showing 1-10 of 37 results
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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.

  • 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.

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Alternative routes for Stansted to Washington

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