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Cheap flights from London Stansted Airport to Washington from £362

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
10 Jan — 17 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 11 December 2025.

Wed 24/1206:20STN - SEA
2 stops17h 20mMultiple Airlines
Tue 6/114:35SEA - STN
2 stops22h 00mMultiple Airlines
Deal found 9/12£734
Fri 19/1206:30STN - SEA
1 stop19h 50mMultiple Airlines
Sun 4/120:05SEA - STN
1 stop17h 15mMultiple Airlines
Deal found 8/12£739
Wed 24/1206:20STN - SEA
2 stops17h 20mMultiple Airlines
Wed 7/114:35SEA - STN
2 stops22h 00mMultiple Airlines
Deal found 8/12£754
Wed 24/1206:20STN - SEA
2 stops17h 20mMultiple Airlines
Fri 9/115:10SEA - STN
2 stops22h 35mMultiple Airlines
Deal found 9/12£767
Thu 11/1218:05STN - SEA
2 stops31h 00mMultiple Airlines
Tue 6/114:35SEA - STN
2 stops22h 00mMultiple Airlines
Deal found 8/12£836
Wed 24/1206:20STN - SEA
2 stops17h 20mMultiple Airlines
Sun 28/1220:05SEA - STN
1 stop18h 55mMultiple Airlines
Deal found 7/12£849
Mon 8/1219:40STN - SEA
2 stops29h 25mMultiple Airlines
Sat 31/114:35SEA - STN
2 stops15h 50mMultiple Airlines
Deal found 8/12£859
Sun 14/1206:30STN - SEA
1 stop19h 50mMultiple Airlines
Sun 28/1220:05SEA - STN
1 stop17h 15mMultiple Airlines
Deal found 8/12£867
Wed 24/1206:20STN - SEA
2 stops17h 20mMultiple Airlines
Sun 4/120:05SEA - STN
1 stop17h 15mMultiple Airlines
Deal found 8/12£873
Tue 23/1218:05STN - SEA
2 stops29h 35mMultiple Airlines
Sun 28/1215:10SEA - STN
2 stops19h 15mMultiple Airlines
Deal found 7/12£881
Mon 15/1208:45STN - PDX
2 stops16h 15mMultiple Airlines
Mon 22/1214:45PDX - STN
2 stops20h 20mMultiple Airlines
Deal found 9/12£1,206
Thu 18/1214:30STN - PDX
3 stops34h 30mMultiple Airlines
Sat 3/114:45PDX - STN
2 stops22h 10mMultiple Airlines
Deal found 9/12£3,186

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 11 December 2025.

Round-trip from

£549

One-way from

£362

Popular in

July

Cheapest in

January

Average price

£640
2/2-15/2
  • 2/2-15/2
  • 5 total stops
  • 50h 11m total
  • London to Washington
Search Deals
11/1
  • 11/1
  • 3 total stops
  • 56h 14m 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 11 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

Tue 5/5

22:00-20:28

3 stops30h 28m

Seattle/Tacoma Intl

Tue 19/5

15:40-00:55

2 stops25h 15m

£602

LondonSeattle

STN - SEA

STNSEA

London Stansted

Thu 9/4

08:15-22:49

3 stops22h 34m

Seattle/Tacoma Intl

Thu 16/4

19:00-19:35

3 stops16h 35m

£634

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 10/4

07:25-17:55

2 stops18h 30m

Seattle/Tacoma Intl

Tue 14/4

18:45-14:45

1 stop12h 00m

£677

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 4/4

07:30-15:40

2 stops16h 10m

Seattle/Tacoma Intl

Mon 6/4

18:45-17:35

1 stop14h 50m

£678

LondonSeattle

STN - SEA

STNSEA

London Stansted

Wed 1/4

21:20-15:40

2 stops26h 20m

Seattle/Tacoma Intl

Mon 6/4

18:45-17:35

1 stop14h 50m

£680

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 10/4

07:25-17:55

2 stops18h 30m

Seattle/Tacoma Intl

Wed 15/4

18:45-14:35

1 stop11h 50m

£685

LondonPortland

STN - PDX

STNPDX

London Stansted

Tue 10/3

06:30-09:15

3 stops33h 45m

Portland

Fri 13/3

14:25-20:35

2 stops23h 10m

£689

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sat 11/4

07:30-15:40

2 stops16h 10m

Seattle/Tacoma Intl

Mon 13/4

18:45-14:40

1 stop11h 55m

£696

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 31/3

07:05-20:40

2 stops21h 35m

Seattle/Tacoma Intl

Mon 6/4

18:45-17:35

1 stop14h 50m

£707

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 10/4

06:40-17:55

2 stops19h 15m

Seattle/Tacoma Intl

Thu 16/4

19:00-17:10

2 stops14h 10m

£731

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 39 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 22h 18m. 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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Gatwick to Las Vegas flights
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London City to Las Vegas flights

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

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