$261 Cheap Flights from Austin (AUS) to Watertown (ATY)

View $261 flight on Tue, Feb 17, 2026Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Watertown, SD (ATY-Watertown Regional)

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Cheap Flights from Austin to Watertown (AUS-ATY)

Prices were available within the past 7 days and start at $261 for one-way flights and $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Nov 1 - Sun, Nov 2
AUS
Austin
ATY
Watertown
$244 Roundtrip, found 4 days ago
$244
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Nov 1 from Austin to Watertown, returning Sun, Nov 2, priced at $244 found 4 days ago
United
Fri, Oct 31 - Mon, Nov 3
AUS
Austin
ATY
Watertown
$254 Roundtrip, found 4 days ago
$254
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 31 from Austin to Watertown, returning Mon, Nov 3, priced at $254 found 4 days ago
Delta
Wed, Nov 5 - Wed, Nov 12
AUS
Austin
ATY
Watertown
$259 Roundtrip, found 4 days ago
$259
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Nov 5 from Austin to Watertown, returning Wed, Nov 12, priced at $259 found 4 days ago
Delta
Tue, Oct 14 - Sun, Nov 2
AUS
Austin
ATY
Watertown
$269 Roundtrip, found 6 days ago
$269
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Oct 14 from Austin to Watertown, returning Sun, Nov 2, priced at $269 found 6 days ago
Delta
Tue, Oct 14 - Wed, Nov 5
AUS
Austin
ATY
Watertown
$274 Roundtrip, found 6 days ago
$274
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Oct 14 from Austin to Watertown, returning Wed, Nov 5, priced at $274 found 6 days ago
Delta
Sat, Nov 1 - Mon, Nov 10
AUS
Austin
ATY
Watertown
$294 Roundtrip, found 4 days ago
$294
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Nov 1 from Austin to Watertown, returning Mon, Nov 10, priced at $294 found 4 days ago
Delta
Wed, Nov 5 - Mon, Nov 10
AUS
Austin
ATY
Watertown
$304 Roundtrip, found 4 days ago
$304
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Nov 5 from Austin to Watertown, returning Mon, Nov 10, priced at $304 found 4 days ago
United
Tue, Oct 14 - Tue, Oct 21
AUS
Austin
ATY
Watertown
$307 Roundtrip, found 6 days ago
$307
Roundtrip
found 6 days ago
Select United flight, departing Tue, Oct 14 from Austin to Watertown, returning Tue, Oct 21, priced at $307 found 6 days ago
Delta
Mon, Oct 13 - Tue, Oct 28
AUS
Austin
ATY
Watertown
$309 Roundtrip, found 6 days ago
$309
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Oct 13 from Austin to Watertown, returning Tue, Oct 28, priced at $309 found 6 days ago
Delta
Sun, Nov 2 - Sat, Nov 15
AUS
Austin
ATY
Watertown
$319 Roundtrip, found 4 days ago
$319
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Nov 2 from Austin to Watertown, returning Sat, Nov 15, priced at $319 found 4 days 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 $521
ATY
Watertown Regional
CheapestClosest
Average driving time to city center6 min
Flights from $521
Flights from Austin (AUS) to Watertown (ATY)
Origin airport
Austin-Bergstrom Intl.
Destination airport
Watertown Regional
Roundtrip price
$243
Distance
1017 mi

Austin to Watertown Flights

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

 

The best time to book a flight from Austin to Watertown

Sunday is one of the best days to book for cheap flights from Austin 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 Austin 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 Austin to Watertown in 2025. You can also book with separate airlines for your outbound and return journeys, from $261 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 Austin 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 Austin 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.

 

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY) cost?
Snag a cheap one-way flight from $261 or cheap return flight from $244 from Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY)?
Flying in November is a great way to save, as it's the cheapest month for flights between AUS and ATY. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from AUS to ATY. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY)?
You'll need to catch a flight with a layover if you're traveling from Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from AUS to ATY?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a range of factors, including 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 Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY)?
To touch down at Watertown Regional Airport (ATY) on schedule, book a flight that leaves Austin-Bergstrom Intl. Airport (AUS) 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 Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY) last-minute?
Booking your plane ticket from AUS to ATY just before your getaway is usually more expensive. But if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book an AUS to ATY flight and hotel package?
Securing an AUS to ATY flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our extensive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Watertown Regional Airport (ATY)?
In most cases, you can modify or cancel your AUS to ATY flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, head to our Customer Service portal.

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*Available to One Key members.