$264 Cheap Flights from Washington (DCA) to Watertown (ATY)

View $264 flight on Thu, Nov 27, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Watertown, SD (ATY-Watertown Regional)

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Cheap Flights from Washington to Watertown (DCA-ATY)

Prices were available within the past 7 days and start at $264 for one-way flights and $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Nov 27 - Sun, Dec 7
DCA
Washington
ATY
Watertown
$244 Roundtrip, found 2 days ago
$244
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Nov 27 from Washington to Watertown, returning Sun, Dec 7, priced at $244 found 2 days ago
Delta
Wed, Dec 31 - Sun, Jan 11
DCA
Washington
ATY
Watertown
$254 Roundtrip, found 2 days ago
$254
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 31 from Washington to Watertown, returning Sun, Jan 11, priced at $254 found 2 days ago
Delta
Wed, Nov 19 - Sat, Nov 22
DCA
Washington
ATY
Watertown
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 19 from Washington to Watertown, returning Sat, Nov 22, priced at $279 found 1 day ago
Delta
Sat, Nov 15 - Fri, Nov 21
DCA
Washington
ATY
Watertown
$284 Roundtrip, found 1 day ago
$284
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 15 from Washington to Watertown, returning Fri, Nov 21, priced at $284 found 1 day ago
Delta
Sat, Nov 15 - Tue, Nov 18
DCA
Washington
ATY
Watertown
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 15 from Washington to Watertown, returning Tue, Nov 18, priced at $304 found 1 day ago
Delta
Sat, Nov 15 - Wed, Nov 19
DCA
Washington
ATY
Watertown
$309 Roundtrip, found 1 day ago
$309
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Nov 15 from Washington to Watertown, returning Wed, Nov 19, priced at $309 found 1 day ago
Delta
Wed, Dec 3 - Thu, Dec 18
DCA
Washington
ATY
Watertown
$312 Roundtrip, found 4 days ago
$312
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Dec 3 from Washington to Watertown, returning Thu, Dec 18, priced at $312 found 4 days ago
Delta
Thu, Jan 8 - Sun, Jan 25
DCA
Washington
ATY
Watertown
$314 Roundtrip, found 4 days ago
$314
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Jan 8 from Washington to Watertown, returning Sun, Jan 25, priced at $314 found 4 days ago
Delta
Wed, Dec 3 - Sun, Dec 14
DCA
Washington
ATY
Watertown
$317 Roundtrip, found 2 days ago
$317
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 3 from Washington to Watertown, returning Sun, Dec 14, priced at $317 found 2 days ago
United
Fri, Nov 14 - Mon, Nov 17
DCA
Washington
ATY
Watertown
$866 Roundtrip, found 1 day ago
$866
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 14 from Washington to Watertown, returning Mon, Nov 17, priced at $866 found 1 day ago

Alternative airports near Watertown

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

Select flight to Watertown Regional ATY. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $279
ATY
Watertown Regional
CheapestClosest
Average driving time to city center6 min
Flights from $279

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY) cost?
Grab a cheap one-way flight from $264 or cheap return flight from $244 from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY)?
The cheapest month to fly from DCA to ATY is November, when there's less demand. Off-peak months are often when better flight deals are available between these airports.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY)?
To find the cheapest airline flying from DCA to ATY, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY)?
You'll have to catch a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DCA to ATY?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a number of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY)?
To reach Watertown Regional Airport (ATY) on schedule, select a flight that takes off from Ronald Reagan Washington National Airport (DCA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY) last-minute?
Waiting until just before your trip to book your flight from DCA to ATY generally means paying more. Although you may find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans for a better chance of snagging a bargain.
Is it cheaper to book a DCA to ATY flight and hotel package?
You can save money by securing a DCA to ATY flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal flights and accommodations, consider adding extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Watertown Regional Airport (ATY)?
If you booked your DCA to ATY flight within 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 after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Watertown Regional
Airlines serving
Delta, United
Roundtrip price
$243
Distance
1112 mi

Book with confidence

Washington to Watertown Flights

The cheapest times to fly from Washington to Watertown

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 Washington to Watertown are during the month of November. You can find some of the cheapest flights from Washington to Watertown with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Watertown

Sunday is one of the best days to book for cheap flights from Washington to Watertown: 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 Washington to Watertown

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 Washington to Watertown in 2025. You can also book with separate airlines for your outbound and return journeys, from $264 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 Washington to Watertown 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 Washington to Watertown 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.

 

Washington to Watertown Flights

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*Available to One Key members.