HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$572+ Cheap flights from Stansted (STN) to Dulles Intl (IAD)

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
STN — IAD
Feb 2 — Feb 91
Mon 2/2
Mon 2/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Stansted to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Stansted to Dulles Intl

Cheapest flights from Stansted to Dulles Intl
Explore the most affordable flight options available from Stansted to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 3, 2026.

This Booking.com deal was found by Cheapflights users on 1/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/138:30 amSTN - IAD
2 stops15h 00mMultiple Airlines
Sat 1/247:40 pmIAD - STN
2 stops12h 40mMultiple Airlines
Deal found 1/2$584
This Booking.com deal was found by Cheapflights users on 1/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/129:35 amSTN - IAD
2 stops35h 30mMultiple Airlines
Fri 1/236:50 pmIAD - STN
2 stops24h 20mMultiple Airlines
Deal found 1/1$596
This WAYA deal was found by Cheapflights users on 1/1. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/297:40 amSTN - IAD
1 stop13h 50mMultiple Airlines
Thu 2/56:00 pmIAD - STN
1 stop12h 30mMultiple Airlines
Deal found 1/1$597
This Mytrip deal was found by Cheapflights users on 1/2. 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 2/166:30 amSTN - IAD
1 stop14h 05mMultiple Airlines
Mon 2/235:05 pmIAD - STN
1 stop9h 45mMultiple Airlines
Deal found 1/2$610
This Mytrip deal was found by Cheapflights users on 1/2. 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 1/236:10 amSTN - IAD
2 stops17h 20mMultiple Airlines
Mon 1/267:40 pmIAD - STN
2 stops21h 25mMultiple Airlines
Deal found 1/2$621
This Mytrip deal was found by Cheapflights users on 1/1. 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 1/269:20 pmSTN - IAD
2 stops26h 10mMultiple Airlines
Fri 1/307:40 pmIAD - STN
2 stops19h 55mMultiple Airlines
Deal found 1/1$630
This Booking.com deal was found by Cheapflights users on 1/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:10 pmSTN - IAD
2 stops23h 25mMultiple Airlines
Tue 4/76:15 pmIAD - STN
2 stops21h 50mMultiple Airlines
Deal found 1/1$632
This Mytrip deal was found by Cheapflights users on 1/3. 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 1/185:55 amSTN - IAD
2 stops20h 05mMultiple Airlines
Tue 2/35:30 pmIAD - STN
2 stops25h 20mMultiple Airlines
Deal found 1/3$639
This Booking.com deal was found by Cheapflights users on 1/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/129:35 amSTN - IAD
2 stops35h 30mMultiple Airlines
Thu 1/226:50 pmIAD - STN
2 stops24h 15mMultiple Airlines
Deal found 1/2$643
This Mytrip deal was found by Cheapflights users on 1/2. 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 2/179:20 pmSTN - IAD
2 stops28h 40mMultiple Airlines
Tue 2/245:30 pmIAD - STN
2 stops25h 20mMultiple Airlines
Deal found 1/2$644
This Mytrip deal was found by Cheapflights users on 1/2. 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 1/164:20 pmSTN - IAD
2 stops27h 55mMultiple Airlines
Mon 1/197:40 pmIAD - STN
2 stops23h 15mMultiple Airlines
Deal found 1/2$649

Find flight deals from Stansted to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) to Dulles Intl (IAD). 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 January 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$584
(Booking.com)

One-way from

$572
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$657
Provider with most accurate pricing for London Stansted-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Stansted-Washington, D.C. Dulles Intl flights.
Search Deals
From London Stansted to Washington, D.C. Dulles Intl
Search Deals
One-way flight from London Stansted to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stansted to Dulles Intl 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 January 3, 2026.
Use the filters below to find and compare flights from London Stansted Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Stansted

Fly to

Dulles Intl

Route

Depart

Return

Price

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Sun 1/18

5:55 am-9:00 pm

2 stops20h 05m

Washington, D.C. Dulles Intl

Tue 2/3

5:30 pm-11:50 pm

2 stops25h 20m

$640

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Thu 1/15

9:20 pm-9:00 pm

2 stops28h 40m

Washington, D.C. Dulles Intl

Sun 1/18

7:40 pm-10:10 pm

2 stops21h 30m

$643

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Tue 2/17

9:20 pm-9:00 pm

2 stops28h 40m

Washington, D.C. Dulles Intl

Tue 2/24

5:30 pm-11:50 pm

2 stops25h 20m

$644

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 1/16

4:20 pm-3:15 pm

2 stops27h 55m

Washington, D.C. Dulles Intl

Mon 1/19

7:40 pm-11:55 pm

2 stops23h 15m

$649

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 1/19

8:05 am-2:35 pm

2 stops35h 30m

Washington, D.C. Dulles Intl

Thu 1/29

7:40 pm-11:40 pm

2 stops23h 00m

$657

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Mon 2/2

4:45 pm-2:35 pm

2 stops26h 50m

Washington, D.C. Dulles Intl

Wed 2/4

7:40 pm-8:35 pm

2 stops19h 55m

$673

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Tue 2/3

2:30 pm-9:00 pm

2 stops35h 30m

Washington, D.C. Dulles Intl

Fri 2/6

7:40 pm-9:55 pm

2 stops21h 15m

$699

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Fri 1/30

6:30 am-3:35 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

Fri 2/6

5:05 pm-7:50 am

1 stop9h 45m

$708

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Tue 1/20

8:25 pm-9:00 pm

2 stops29h 35m

Washington, D.C. Dulles Intl

Fri 1/23

7:40 pm-3:40 pm

2 stops15h 00m

$725

LondonWashington, D.C.

STN - IAD

STNIAD

London Stansted

Wed 3/11

7:40 am-10:00 pm

2 stops18h 20m

Washington, D.C. Dulles Intl

Wed 3/18

8:40 pm-9:25 pm

2 stops20h 45m

$733

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 21 results
1
2
3
  • Most accurate provider: When it comes to deals on London Stansted Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Stansted Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Stansted Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Stansted Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Stansted Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Stansted to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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.

Related info for your journey

Find useful and relevant information for your journey from Stansted to Dulles Intl. 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 Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Stansted to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Stansted to Dulles Intl?

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

  • Can I find deals for business class flights from Stansted to Dulles Intl?

    Yes. Cheapflights offers flight deals from Stansted to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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.

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.