$141+ 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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
HPN — IAD
Dec 6 — Dec 131
1 adult, Economy
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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 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 November 6, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $258 (Kiwi.com) |
One-way from | $141 (Kiwi.com) |
Popular in | December |
Cheapest in | April |
Average price | $239 |
Find flight deals from Westchester County to Dulles Intl
Cheapest flights from Westchester County to Dulles IntlExplore 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 November 6, 2025.
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 November 6, 2025.
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 12/1212:10 pmHPN - IAD
2 stops8h 14mMultiple Airlines
Sun 12/1411:40 amIAD - HPN
1 stop25h 00mMultiple Airlines
Deal found 11/5![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/58:00 amHPN - IAD
2 stops12h 24mMultiple Airlines
Sun 12/711:40 amIAD - HPN
1 stop25h 00mMultiple Airlines
Deal found 11/4![Multiple Airlines logo]()
$288
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/127:30 amHPN - IAD
1 stop6h 04mAmerican Airlines
Sat 12/139:15 amIAD - HPN
1 stop7h 34mAmerican Airlines
Deal found 11/4![American Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Mon 11/1712:10 pmHPN - IAD
2 stops12h 01mMultiple Airlines
Thu 11/2011:40 amIAD - HPN
1 stop25h 00mMultiple Airlines
Deal found 11/5![Multiple Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 11/5. 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 12/126:43 pmHPN - IAD
1 stop4h 25mAmerican Airlines
Sun 12/146:25 amIAD - HPN
1 stop6h 41mAmerican Airlines
Deal found 11/5![American Airlines logo]()
$383
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/61:36 pmHPN - IAD
1 stop5h 55mAmerican Airlines
Sun 12/76:25 amIAD - HPN
1 stop6h 41mAmerican Airlines
Deal found 11/4![American Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 11/4. 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 11/86:49 pmHPN - IAD
1 stop5h 10mAmerican Airlines
Wed 11/125:29 pmIAD - HPN
1 stop5h 01mAmerican Airlines
Deal found 11/4![American Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 11/4. 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 11/156:49 pmHPN - IAD
1 stop5h 10mAmerican Airlines
Sun 11/169:12 amIAD - HPN
1 stop7h 39mAmerican Airlines
Deal found 11/4![American Airlines logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sat 11/1512:00 pmHPN - IAD
1 stop22h 20mMultiple Airlines
Sun 11/168:36 pmIAD - HPN
2 stops14h 52mMultiple Airlines
Deal found 11/4![Multiple Airlines logo]()
$554
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 11/218:00 amHPN - IAD
2 stops28h 38mMultiple Airlines
Tue 11/259:16 pmIAD - HPN
1 stop13h 57mMultiple Airlines
Deal found 11/5![Multiple Airlines logo]()
$556
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 11/256:49 pmHPN - IAD
1 stop5h 10mAmerican Airlines
Mon 12/14:34 pmIAD - HPN
1 stop6h 13mAmerican Airlines
Deal found 11/4![American Airlines logo]()
$560
This American Airlines deal was found by Cheapflights users on 11/4. 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 11/76:43 pmHPN - IAD
1 stop4h 24mAmerican Airlines
Sun 11/99:12 amIAD - HPN
1 stop7h 39mAmerican Airlines
Deal found 11/4![American Airlines logo]()
$567
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 November 6, 2025.
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
Westchester County
Fly to
Dulles Intl
Route
Depart
Return
Price
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Fri 12/12
12:10 pm-8:24 pm
2 stops8h 14m
Washington, D.C. Dulles Intl
Sun 12/14
11:40 am-12:40 pm
1 stop25h 00m
$258
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Fri 12/5
8:00 am-8:24 pm
2 stops12h 24m
Washington, D.C. Dulles Intl
Sun 12/7
11:40 am-12:40 pm
1 stop25h 00m
$288
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Sat 2/28
7:47 am-1:34 pm
1 stop5h 47m
Washington, D.C. Dulles Intl
Sat 3/7
9:12 am-4:47 pm
1 stop7h 35m
$343
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Fri 12/12
7:30 am-1:34 pm
1 stop6h 04m
Washington, D.C. Dulles Intl
Sat 12/13
9:15 am-4:49 pm
1 stop7h 34m
$363
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Mon 11/17
12:10 pm-12:11 am
2 stops12h 01m
Washington, D.C. Dulles Intl
Thu 11/20
11:40 am-12:40 pm
1 stop25h 00m
$367
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Thu 2/5
11:00 am-5:16 pm
1 stop6h 16m
Washington, D.C. Dulles Intl
Sun 2/8
11:34 am-4:45 pm
1 stop5h 11m
$383
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Fri 12/5
7:30 am-1:34 pm
1 stop6h 04m
Washington, D.C. Dulles Intl
Sun 12/7
9:15 am-4:49 pm
1 stop7h 34m
$383
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Fri 1/16
6:40 pm-11:12 pm
1 stop4h 32m
Washington, D.C. Dulles Intl
Sun 1/18
5:46 pm-9:55 pm
1 stop4h 09m
$383
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Fri 12/12
6:43 pm-11:08 pm
1 stop4h 25m
Washington, D.C. Dulles Intl
Sun 12/14
6:25 am-1:06 pm
1 stop6h 41m
$383
White PlainsWashington, D.C.
HPN - IAD
HPNIAD
White Plains Westchester County
Tue 11/18
6:43 pm-11:07 pm
1 stop4h 24m
Washington, D.C. Dulles Intl
Sat 11/22
4:34 pm-10:47 pm
1 stop6h 13m
$483
Showing 1-10 of 21 results
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
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Cheapflights Insights
Everything you need to know about your flight from Westchester County to Washington, D.C. Dulles Intl Airport
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