$177 Cheap Flights from White Plains (HPN) to Washington (IAD)

View $177 flight on Fri, Aug 15, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $177 for one-way flights and $315 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct 1 - Tue, Oct 21
HPN
White Plains
IAD
Washington
$315 Roundtrip, found 6 days ago
$315
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Oct 1 from White Plains to Washington, returning Tue, Oct 21, priced at $315 found 6 days ago
Delta
Tue, Jul 29 - Tue, Aug 12
HPN
White Plains
IAD
Washington
$325 Roundtrip, found 6 days ago
$325
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Jul 29 from White Plains to Washington, returning Tue, Aug 12, priced at $325 found 6 days ago
Delta
Tue, Jul 29 - Mon, Aug 11
HPN
White Plains
IAD
Washington
$339 Roundtrip, found 6 days ago
$339
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Jul 29 from White Plains to Washington, returning Mon, Aug 11, priced at $339 found 6 days ago
Delta
Mon, Jul 28 - Tue, Aug 12
HPN
White Plains
IAD
Washington
$340 Roundtrip, found 6 days ago
$340
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jul 28 from White Plains to Washington, returning Tue, Aug 12, priced at $340 found 6 days ago
American Airlines
Wed, Jul 23 - Tue, Jul 29
HPN
White Plains
IAD
Washington
$343 Roundtrip, found 14 hours ago
$343
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Wed, Jul 23 from White Plains to Washington, returning Tue, Jul 29, priced at $343 found 14 hours ago
Delta
Wed, Nov 12 - Thu, Nov 27
HPN
White Plains
IAD
Washington
$343 Roundtrip, found 2 days ago
$343
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Nov 12 from White Plains to Washington, returning Thu, Nov 27, priced at $343 found 2 days ago
Delta
Wed, Nov 5 - Thu, Nov 27
HPN
White Plains
IAD
Washington
$345 Roundtrip, found 6 days ago
$345
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 5 from White Plains to Washington, returning Thu, Nov 27, priced at $345 found 6 days ago
Delta
Wed, Aug 20 - Wed, Aug 27
HPN
White Plains
IAD
Washington
$353 Roundtrip, found 3 days ago
$353
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Aug 20 from White Plains to Washington, returning Wed, Aug 27, priced at $353 found 3 days ago
Delta
Mon, Jul 28 - Mon, Aug 11
HPN
White Plains
IAD
Washington
$354 Roundtrip, found 6 days ago
$354
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jul 28 from White Plains to Washington, returning Mon, Aug 11, priced at $354 found 6 days ago
Breeze Airways
Wed, Jun 18 - Sun, Jun 22
HPN
White Plains
IAD
Washington
$699 Roundtrip, found 2 days ago
$699
Roundtrip
found 2 days ago
Select Breeze Airways flight, departing Wed, Jun 18 from White Plains to Washington, returning Sun, Jun 22, priced at $699 found 2 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $478
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $478
Flights from White Plains (HPN) to Washington (IAD)
Origin airport
Westchester County
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$315
Distance
246 mi

White Plains to Washington Flights

The cheapest times to fly from White Plains to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from White Plains to Washington are during the month of October. You can find some of the cheapest flights from White Plains to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from White Plains to Washington

Sunday is one of the best days to book for cheap flights from White Plains to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from White Plains to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from White Plains to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $177 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap White Plains to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your White Plains to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

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.

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*Available to One Key members.