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$500+ Cheap flights from Stansted (STN) to Washington

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$637
(Mytrip)

One-way from

$500
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$693
From London Stansted to Washington
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One-way flight from London Stansted to Washington
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Highest demand for flights based on searches. 12% potential increase in price ($108 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Stansted to Washington

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 September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:55 amSTN - SEA
2 stops19h 05mMultiple Airlines
Thu 12/42:35 pmSEA - STN
2 stops24h 35mMultiple Airlines
Deal found 9/10$637
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:30 amSTN - SEA
2 stops18h 30mMultiple Airlines
Mon 11/172:35 pmSEA - STN
2 stops22h 45mMultiple Airlines
Deal found 9/9$642
This Mytrip deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/263:00 pmSTN - SEA
2 stops34h 00mMultiple Airlines
Sun 11/22:35 pmSEA - STN
2 stops20h 00mMultiple Airlines
Deal found 9/11$646
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:40 amSTN - SEA
3 stops47h 51mMultiple Airlines
Tue 10/147:05 amSEA - STN
2 stops23h 15mMultiple Airlines
Deal found 9/10$656
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1910:50 pmSTN - SEA
2 stops23h 26mMultiple Airlines
Fri 10/310:00 amSEA - STN
2 stops23h 05mMultiple Airlines
Deal found 9/10$669
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:15 amSTN - SEA
1 stop14h 35mMultiple Airlines
Fri 10/319:05 pmSEA - STN
1 stop12h 30mMultiple Airlines
Deal found 9/8$717
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/119:25 amSTN - PDX
2 stops33h 35mMultiple Airlines
Sat 10/181:15 pmPDX - STN
2 stops22h 05mMultiple Airlines
Deal found 9/10$768
This Mytrip deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:00 amSTN - PDX
3 stops35h 21mMultiple Airlines
Thu 10/26:15 amPDX - STN
3 stops25h 30mMultiple Airlines
Deal found 9/10$896
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/711:40 amSTN - PDX
1 stop14h 15mMultiple Airlines
Sat 10/111:45 pmPDX - STN
2 stops23h 30mMultiple Airlines
Deal found 9/9$926
This Mytrip deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:45 pmSTN - PDX
3 stops47h 30mMultiple Airlines
Tue 12/92:45 pmPDX - STN
2 stops22h 35mMultiple Airlines
Deal found 9/11$984
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:15 amSTN - PDX
3 stops22h 46mMultiple Airlines
Mon 10/209:55 amPDX - STN
3 stops20h 25mMultiple Airlines
Deal found 9/9$988
This Mytrip deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:55 amSTN - PDX
3 stops34h 26mMultiple Airlines
Mon 9/226:15 amPDX - STN
3 stops20h 35mMultiple Airlines
Deal found 9/9$1,030

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 11, 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

Thu 11/20

5:55 am-5:00 pm

2 stops19h 05m

Seattle/Tacoma Intl

Thu 12/4

2:35 pm-11:10 pm

2 stops24h 35m

$637

LondonSeattle

STN - SEA

STNSEA

London Stansted

Mon 11/3

6:30 am-5:00 pm

2 stops18h 30m

Seattle/Tacoma Intl

Mon 11/17

2:35 pm-9:20 pm

2 stops22h 45m

$644

LondonSeattle

STN - SEA

STNSEA

London Stansted

Sun 10/26

3:00 pm-6:00 pm

2 stops34h 00m

Seattle/Tacoma Intl

Sun 11/2

2:35 pm-6:35 pm

2 stops20h 00m

$646

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 10/10

6:40 am-10:31 pm

3 stops47h 51m

Seattle/Tacoma Intl

Tue 10/14

10:00 am-2:20 pm

3 stops20h 20m

$671

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 11/14

6:30 am-6:20 pm

1 stop19h 50m

Seattle/Tacoma Intl

Fri 11/21

8:05 pm-9:20 pm

1 stop17h 15m

$692

LondonSeattle

STN - SEA

STNSEA

London Stansted

Fri 10/24

11:15 am-5:50 pm

1 stop14h 35m

Seattle/Tacoma Intl

Fri 10/31

9:05 pm-4:35 pm

1 stop12h 30m

$717

LondonSeattle

STN - SEA

STNSEA

London Stansted

Tue 9/23

8:15 am-10:16 pm

3 stops22h 01m

Seattle/Tacoma Intl

Tue 9/30

7:15 am-7:55 pm

3 stops28h 40m

$756

LondonPortland

STN - PDX

STNPDX

London Stansted

Sun 9/28

6:00 am-9:21 am

3 stops35h 21m

Portland

Thu 10/2

6:15 am-3:45 pm

3 stops25h 30m

$896

LondonPortland

STN - PDX

STNPDX

London Stansted

Sat 10/11

7:50 pm-11:01 pm

3 stops35h 11m

Portland

Sat 10/18

6:15 am-10:05 pm

3 stops31h 50m

$919

LondonPortland

STN - PDX

STNPDX

London Stansted

Tue 10/7

11:40 am-5:55 pm

1 stop14h 15m

Portland

Sat 10/11

1:45 pm-9:15 pm

2 stops23h 30m

$926

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 33 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 round-trip 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 vacation 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.

  • What is the cheapest month to book a flight from London Stansted Airport to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from London Stansted Airport to State of Washington (average of $238). Flying from London Stansted Airport to State of Washington in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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