$169 Cheap Flights from White Plains (HPN) to Washington (IAD)

View $169 flight on Fri, Jul 4, 2025Opens in a new window

Popular airlines from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from White Plains to Washington (HPN-IAD)

Prices were available within the past 7 days and start at $169 for one-way flights and $343 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Aug 20 - Wed, Nov 12
HPN
White Plains
IAD
Washington
$343 Roundtrip, found 1 day ago
$343
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Aug 20 from White Plains to Washington, returning Wed, Nov 12, priced at $343 found 1 day ago
Delta
Wed, May 28 - Sat, May 31
HPN
White Plains
IAD
Washington
$346 Roundtrip, found 3 days ago
$346
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, May 28 from White Plains to Washington, returning Sat, May 31, priced at $346 found 3 days ago
Delta
Sat, May 24 - Wed, May 28
HPN
White Plains
IAD
Washington
$352 Roundtrip, found 6 days ago
$352
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, May 24 from White Plains to Washington, returning Wed, May 28, priced at $352 found 6 days ago
Delta
Thu, May 29 - Sat, May 31
HPN
White Plains
IAD
Washington
$355 Roundtrip, found 3 days ago
$355
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, May 29 from White Plains to Washington, returning Sat, May 31, priced at $355 found 3 days ago
American Airlines
Wed, May 28 - Mon, Jun 2
HPN
White Plains
IAD
Washington
$358 Roundtrip, just found
$358
Roundtrip
just found
Select American Airlines flight, departing Wed, May 28 from White Plains to Washington, returning Mon, Jun 2, priced at $358 just found
Delta
Tue, Jul 1 - Sat, Jul 5
HPN
White Plains
IAD
Washington
$365 Roundtrip, found 2 days ago
$365
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jul 1 from White Plains to Washington, returning Sat, Jul 5, priced at $365 found 2 days ago
Delta
Sat, May 24 - Wed, May 28
HPN
White Plains
IAD
Washington
$367 Roundtrip, found 6 days ago
$367
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, May 24 from White Plains to Washington, returning Wed, May 28, priced at $367 found 6 days ago
Delta
Tue, Jul 1 - Tue, Jul 8
HPN
White Plains
IAD
Washington
$371 Roundtrip, found 2 days ago
$371
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jul 1 from White Plains to Washington, returning Tue, Jul 8, priced at $371 found 2 days ago
American Airlines
Fri, Jun 6 - Mon, Jun 9
HPN
White Plains
IAD
Washington
$373 Roundtrip, found 6 hours ago
$373
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Fri, Jun 6 from White Plains to Washington, returning Mon, Jun 9, priced at $373 found 6 hours ago
Delta
Thu, May 29 - Tue, Jun 10
HPN
White Plains
IAD
Washington
$380 Roundtrip, found 3 days ago
$380
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, May 29 from White Plains to Washington, returning Tue, Jun 10, priced at $380 found 3 days ago

Frequently asked questions

How much does a flight from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from HPN to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from HPN to IAD?
The cheapest flights from HPN to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD)?
Direct flights aren’t available from White Plains, NY (HPN-Westchester County) to Washington Dulles Intl. Airport (IAD). However, you’ll find other airports that offer nonstop flights. Hop on your plane at John F. Kennedy Intl. Airport (JFK) and head straight to Washington without layovers.
What is the cheapest airline that flies from HPN to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from HPN to IAD. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD)?
You’ll need to book a flight with a layover if you’re traveling from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from HPN to IAD?
Usually you’ll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD)?
Select a flight from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Washington from Westchester County Airport (HPN)?
Ronald Reagan Washington National Airport (DCA) is the only airport in Washington with direct flights from Westchester County Airport (HPN). Check out your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from HPN to IAD are generally more expensive. For the best prices, start searching for flights early. That being said, if you can play around with your travel dates, you may score a cheap fare just before your departure.
Is it cheaper to book a HPN to IAD flight and hotel package?
Opting for a HPN to IAD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Westchester County Airport (HPN) to Washington Dulles Intl. Airport (IAD)?
If you reserved your HPN to IAD flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you’d like more information.
*Available to One Key members.