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Cheap flights from London Stansted Airport to Washington from £311

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
20 Jan — 27 Jan1
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 21 December 2025.

Mon 22/1219:40STN - SEA
2 stops29h 25mMultiple Airlines
Wed 7/114:35SEA - STN
2 stops23h 40mMultiple Airlines
Deal found 19/12£842
Fri 26/1212:00STN - SEA
1 stop14h 20mMultiple Airlines
Tue 30/1218:39SEA - STN
2 stops34h 41mMultiple Airlines
Deal found 19/12£901
Mon 22/1206:00STN - SEA
2 stops17h 40mMultiple Airlines
Mon 5/114:35SEA - STN
2 stops22h 00mMultiple Airlines
Deal found 18/12£932
Fri 26/1212:00STN - SEA
1 stop14h 20mMultiple Airlines
Sun 4/120:05SEA - STN
1 stop18h 55mMultiple Airlines
Deal found 19/12£939
Fri 26/1212:00STN - SEA
1 stop14h 20mMultiple Airlines
Mon 29/1220:05SEA - STN
1 stop16h 50mMultiple Airlines
Deal found 19/12£960
Sun 21/1208:30STN - SEA
1 stop17h 50mMultiple Airlines
Sun 4/120:05SEA - STN
1 stop14h 15mMultiple Airlines
Deal found 20/12£1,004
Wed 24/1205:55STN - SEA
2 stops36h 41mMultiple Airlines
Sun 4/120:05SEA - STN
1 stop17h 15mMultiple Airlines
Deal found 20/12£1,020
Sun 28/1219:35STN - SEA
2 stops24h 35mMultiple Airlines
Wed 31/1214:35SEA - STN
2 stops22h 00mMultiple Airlines
Deal found 20/12£1,028
Sat 27/1205:55STN - SEA
2 stops17h 45mMultiple Airlines
Sat 3/117:40SEA - STN
2 stops20h 40mMultiple Airlines
Deal found 19/12£1,032

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 21 December 2025.

Round-trip from

£500

One-way from

£311

Popular in

July

Cheapest in

January

Average price

£638
17/1-24/1
  • 17/1-24/1
  • 4 total stops
  • 35h 05m total
  • London to Washington
Search Deals
21/1
  • 21/1
  • 2 total stops
  • 55h 32m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 21 December 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

Sat 17/1

05:55-17:00

2 stops19h 05m

Seattle/Tacoma Intl

Sat 24/1

14:35-14:35

2 stops16h 00m

£510

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 9/2

17:15-22:16

3 stops37h 01m

Seattle/Tacoma Intl

Mon 23/2

14:35-22:05

2 stops23h 30m

£534

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 18/1

15:00-17:00

2 stops34h 00m

Seattle/Tacoma Intl

Sun 25/1

14:35-18:35

2 stops20h 00m

£541

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 15/1

20:05-22:16

2 stops34h 11m

Seattle/Tacoma Intl

Sun 18/1

14:35-18:10

2 stops19h 35m

£564

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 12/1

17:15-22:16

3 stops37h 01m

Seattle/Tacoma Intl

Mon 26/1

14:35-19:25

2 stops20h 50m

£584

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 3/3

08:30-22:51

3 stops22h 21m

Seattle/Tacoma Intl

Thu 5/3

05:50-21:40

3 stops31h 50m

£590

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 12/5

07:35-16:00

2 stops16h 25m

Seattle/Tacoma Intl

Sun 24/5

18:45-14:30

1 stop11h 45m

£591

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 2/2

05:55-15:40

2 stops17h 45m

Seattle/Tacoma Intl

Mon 16/2

14:35-22:05

2 stops23h 30m

£631

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 12/5

07:35-16:00

2 stops16h 25m

Seattle/Tacoma Intl

Sat 23/5

18:45-14:30

1 stop11h 45m

£657

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 24/1

05:50-22:16

2 stops24h 26m

Seattle/Tacoma Intl

Mon 26/1

14:35-19:25

2 stops20h 50m

£659

Flights are sorted by cheapest return flights first.

Deals found on 19/12

Showing 1-10 of 35 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.

  • 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 35h 40m. 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 4893 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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Fly with Cheapflights

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How does Cheapflights help users find flights from Stansted to Washington?

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