Find flights
When to book

Cheap flights from London Stansted Airport to Washington, D.C. from £232

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
STN — WAS
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to Washington, D.C.
Explore the most affordable flight options available from Stansted to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 February 2026.

Thu 5/308:05
STN
-
IAD
2 stops15h 25m
Multiple Airlines
Mon 9/320:40
IAD
-
STN
2 stops23h 15m
Multiple Airlines
Deal found 20/2£395
Mon 13/422:45
STN
-
IAD
3 stops27h 33m
Multiple Airlines
Mon 27/420:30
IAD
-
STN
2 stops17h 20m
Multiple Airlines
Deal found 18/2£405
Fri 17/422:50
STN
-
IAD
2 stops26h 39m
Multiple Airlines
Sat 25/420:30
IAD
-
STN
2 stops22h 35m
Multiple Airlines
Deal found 19/2£405
Tue 7/406:30
STN
-
BWI
2 stops20h 45m
Multiple Airlines
Tue 14/420:30
BWI
-
STN
2 stops21h 50m
Multiple Airlines
Deal found 20/2£416
Thu 9/414:45
STN
-
IAD
2 stops29h 25m
Multiple Airlines
Mon 13/420:30
IAD
-
STN
2 stops22h 50m
Multiple Airlines
Deal found 17/2£421
Wed 4/305:55
STN
-
IAD
2 stops20h 05m
Multiple Airlines
Wed 15/420:30
IAD
-
STN
2 stops20h 10m
Multiple Airlines
Deal found 20/2£422
Mon 20/422:45
STN
-
IAD
3 stops27h 33m
Multiple Airlines
Thu 23/420:30
IAD
-
STN
2 stops21h 25m
Multiple Airlines
Deal found 18/2£425
Thu 5/308:05
STN
-
BWI
2 stops15h 35m
Multiple Airlines
Mon 9/320:40
BWI
-
STN
2 stops23h 15m
Multiple Airlines
Deal found 20/2£427
Tue 28/422:00
STN
-
IAD
3 stops28h 18m
Multiple Airlines
Sun 17/520:30
IAD
-
STN
3 stops21h 45m
Multiple Airlines
Deal found 20/2£427
Thu 9/406:30
STN
-
BWI
2 stops17h 55m
Multiple Airlines
Mon 13/420:30
BWI
-
STN
2 stops17h 20m
Multiple Airlines
Deal found 17/2£434
Wed 4/305:55
STN
-
IAD
2 stops20h 05m
Multiple Airlines
Tue 17/318:30
IAD
-
STN
2 stops25h 20m
Multiple Airlines
Deal found 18/2£434
Tue 12/508:30
STN
-
BWI
2 stops15h 55m
Multiple Airlines
Tue 19/523:20
BWI
-
STN
2 stops19h 50m
Multiple Airlines
Deal found 19/2£452

Find flight deals from Stansted to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 February 2026.

Round-trip from

£395

One-way from

£246

Popular in

July

Cheapest in

January

Average price

£465
5/3-9/3
  • 5/3-9/3
  • 4 total stops
  • 38h 40m total
  • London to Washington, D.C.
Search Deals
30/4
  • 30/4
  • 3 total stops
  • 32h 07m total
  • London to Washington, D.C.
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. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted to Washington, D.C. 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 20 February 2026.
Use the filters below to find and compare flights from London Stansted Airport to Washington, D.C. that are best for you.

Fly from

Stansted

Fly to

Washington, D.C.

Route

Depart

Return

Price

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Tue 7/4

06:30-22:15

2 stops20h 45m

Baltimore/Washington

Tue 14/4

20:30-23:20

2 stops21h 50m

£416

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Thu 9/4

06:30-19:25

2 stops17h 55m

Baltimore/Washington

Mon 13/4

20:30-18:50

2 stops17h 20m

£434

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Tue 12/5

08:30-19:25

2 stops15h 55m

Baltimore/Washington

Tue 19/5

23:20-00:10

2 stops19h 50m

£452

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Mon 27/4

06:30-19:25

2 stops17h 55m

Baltimore/Washington

Sat 2/5

20:30-00:05

2 stops22h 35m

£456

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Fri 17/4

06:35-19:25

2 stops17h 50m

Baltimore/Washington

Sat 25/4

20:30-00:25

2 stops22h 55m

£461

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Tue 3/3

19:45-20:54

3 stops30h 09m

Washington, D.C. Dulles Intl

Tue 10/3

20:40-22:55

2 stops22h 15m

£476

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Sun 10/5

06:35-19:25

2 stops17h 50m

Baltimore/Washington

Sat 16/5

23:20-23:15

2 stops18h 55m

£488

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 29/4

21:30-20:35

2 stops28h 05m

Washington, D.C. Dulles Intl

Fri 8/5

20:30-16:05

2 stops14h 35m

£498

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 30/4

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

Tue 5/5

17:15-09:50

1 stop11h 35m

£503

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Tue 12/5

11:35-19:25

2 stops12h 50m

Baltimore/Washington

Mon 18/5

20:30-17:35

2 stops16h 05m

£504

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 43 results
1
2
3
...
5

Best time to book a flight from Stansted to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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, D.C.

What’s the top stopover airport for flights from London Stansted Airport to Washington, D.C.?

Share of one-stop return flights from London Stansted Airport to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 67% of one-stop itineraries from London Stansted Airport to Washington, D.C. on Cheapflights.

What’s the cheapest stopover airport for flights from London Stansted Airport to Washington, D.C.?

Average return fare for one-stop flights from London Stansted Airport to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Reykjavik (KEF) is the most affordable one-stop option, with an average return flight price of £830.

What’s the fastest stopover option from London Stansted Airport to Washington, D.C.?

Shortest average travel time for one-stop one-way flights from London Stansted Airport to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 11h 00m.

Which airport typically offers the quickest stopover for flights from London Stansted Airport to Washington, D.C.?

Average stopover duration for one-stop one-way flights from London Stansted Airport to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average stopover time of 1h 33m.

How often are flights from London to Washington, D.C. delayed?

About 0% of weekly flights between London and Washington, D.C. have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for London to Washington, D.C. flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Related info for your journey

Find useful and relevant information for your journey from Stansted to Washington, D.C.. 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, D.C. that include hotel bookings?

    Yes. In addition to deals on Stansted to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Stansted to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Washington, D.C..

  • Can I find deals for business class flights from Stansted to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Stansted to Washington, D.C. 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Stansted to Washington, D.C.

Discover the top airline that operate flights from Stansted to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 February 2026.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£270Average£410FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Stansted to Washington, D.C.?

When you search for this flight from Stansted to Washington, D.C., Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Stansted to Washington, D.C.?

Cheapflights helps you find that perfect flight to Washington, D.C. from Stansted by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Stansted to Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Stansted to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Stansted to Washington, D.C. become cheaper?

Not ready to book yet? You can track prices for flights from Stansted to Washington, D.C. on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.