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Dulles Intl

$122+ Cheap flights from Westchester County 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — IAD
Apr 28 — May 51
Tue 4/28
Tue 5/5
1 adult, Economy
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Cheap flight deals from Westchester County to Dulles Intl

Cheapest flights from Westchester County to Dulles Intl
Explore the most affordable flight options available from Westchester County to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/312:08 pm
HPN
-
IAD
2 stops49h 22m
Multiple Airlines
Mon 4/66:49 pm
IAD
-
HPN
1 stop25h 41m
Multiple Airlines
Deal found 3/27$360
This American Airlines deal was found by Cheapflights users on 3/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:57 pm
HPN
-
IAD
1 stop5h 02m
American Airlines
Tue 5/197:16 am
IAD
-
HPN
1 stop5h 44m
American Airlines
Deal found 3/26$411
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:00 pm
HPN
-
IAD
1 stop5h 13m
American Airlines
Wed 6/109:20 am
IAD
-
HPN
1 stop7h 39m
American Airlines
Deal found 3/24$437
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:00 am
HPN
-
IAD
2 stops16h 36m
Multiple Airlines
Mon 4/133:34 pm
IAD
-
HPN
1 stop28h 56m
Multiple Airlines
Deal found 3/25$446
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:00 pm
HPN
-
IAD
1 stop4h 59m
American Airlines
Sat 5/99:19 am
IAD
-
HPN
1 stop7h 27m
American Airlines
Deal found 3/27$455
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:30 pm
HPN
-
IAD
1 stop5h 55m
American Airlines
Sat 4/183:26 pm
IAD
-
HPN
1 stop7h 34m
American Airlines
Deal found 3/28$463
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/291:43 pm
HPN
-
IAD
1 stop5h 50m
American Airlines
Mon 6/19:20 am
IAD
-
HPN
1 stop7h 39m
American Airlines
Deal found 3/27$469
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:59 pm
HPN
-
IAD
1 stop5h 11m
American Airlines
Sun 8/26:33 am
IAD
-
HPN
1 stop6h 40m
American Airlines
Deal found 3/24$489
This American Airlines deal was found by Cheapflights users on 3/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:59 pm
HPN
-
IAD
1 stop5h 11m
American Airlines
Mon 7/65:03 am
IAD
-
HPN
1 stop4h 25m
American Airlines
Deal found 3/26$499
This American Airlines deal was found by Cheapflights users on 3/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/21:30 pm
HPN
-
IAD
1 stop6h 03m
American Airlines
Mon 5/46:25 am
IAD
-
HPN
1 stop6h 35m
American Airlines
Deal found 3/28$503
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:00 pm
HPN
-
IAD
1 stop8h 06m
Multiple Airlines
Sun 5/36:20 am
IAD
-
HPN
2 stops29h 08m
Multiple Airlines
Deal found 3/26$512
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:08 pm
HPN
-
IAD
2 stops12h 28m
Multiple Airlines
Sun 5/32:10 pm
IAD
-
HPN
1 stop28h 50m
Multiple Airlines
Deal found 3/25$514

Find flight deals from Westchester County to Dulles Intl

Keep the following information in mind while searching for Westchester County to Dulles Intl flight deals. Data was last updated March 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$411
(American Airlines)

One-way from

$122
(Kiwi.com)

Popular in

March

Cheapest in

April

Average price

$267
Provider with most accurate pricing for New York (NYC)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Washington, D.C. (WAS) flights.
Search Deals
From Westchester County to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Westchester County to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Westchester County 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 March 29, 2026.
Use the filters below to find and compare flights from Westchester County to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Wed 6/3

7:00 pm-12:13 am

1 stop5h 13m

Washington, D.C. Dulles Intl

Wed 6/10

9:20 am-4:59 pm

1 stop7h 39m

$437

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Thu 4/23

1:30 pm-7:25 pm

1 stop5h 55m

Washington, D.C. Dulles Intl

Sun 4/26

6:25 am-1:00 pm

1 stop6h 35m

$469

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Fri 5/29

1:43 pm-7:33 pm

1 stop5h 50m

Washington, D.C. Dulles Intl

Mon 6/1

9:20 am-4:59 pm

1 stop7h 39m

$469

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Fri 7/31

6:59 pm-12:10 am

1 stop5h 11m

Washington, D.C. Dulles Intl

Sun 8/2

6:33 am-1:13 pm

1 stop6h 40m

$489

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Mon 4/27

6:59 pm-11:59 pm

1 stop5h 00m

Washington, D.C. Dulles Intl

Mon 5/4

3:26 pm-11:00 pm

1 stop7h 34m

$525

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Sat 5/9

7:49 am-2:51 pm

1 stop7h 02m

Washington, D.C. Dulles Intl

Sun 5/10

3:26 pm-11:00 pm

1 stop7h 34m

$546

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Sat 4/18

1:30 pm-7:33 pm

1 stop6h 03m

Washington, D.C. Dulles Intl

Sun 4/19

6:25 am-1:00 pm

1 stop6h 35m

$594

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Fri 6/26

6:59 pm-12:13 am

1 stop5h 14m

Washington, D.C. Dulles Intl

Sun 6/28

1:06 pm-8:29 pm

1 stop7h 23m

$614
Quickest round-trip

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Fri 4/17

6:59 pm-11:59 pm

1 stop5h 00m

Washington, D.C. Dulles Intl

Sun 4/19

6:25 am-1:00 pm

1 stop6h 35m

$621

White PlainsWashington, D.C.

HPN - IAD

HPNIAD

White Plains Westchester County

Fri 4/24

12:08 pm-12:36 am

2 stops12h 28m

Washington, D.C. Dulles Intl

Sun 4/26

2:10 pm-7:00 pm

1 stop28h 50m

$731

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Westchester County to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Westchester County 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 Westchester County to Washington, D.C. Dulles Intl Airport
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 Westchester County to Dulles Intl. 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 Westchester County to Washington, D.C. Dulles Intl Airport?

    There are many flights that can get you from Westchester County to Washington, D.C. Dulles Intl Airport in 5h 13m. Fly via American Airlines to get the fastest option. The distance from Westchester County to Washington, D.C. Dulles Intl Airport is about 246 mi.

  • Can I find deals for flights from Westchester County to Dulles Intl that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Westchester County 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.

See more FAQs

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
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

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