$219 Cheap Flights from Bozeman (BZN) to Watertown (ATY)

View $219 flight on Fri, Jan 16, 2026Opens in a new window

Popular airlines from Bozeman Yellowstone Intl. Airport (BZN) to Watertown, SD (ATY-Watertown Regional)

Cheap Flights from Bozeman to Watertown (BZN-ATY)

Prices were available within the past 7 days and start at $219 for one-way flights and $281 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Nov 27 - Wed, Dec 3
BZN
Bozeman
ATY
Watertown
$281 Roundtrip, found 4 days ago
$281
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Nov 27 from Bozeman to Watertown, returning Wed, Dec 3, priced at $281 found 4 days ago
Delta
Mon, Nov 24 - Wed, Dec 3
BZN
Bozeman
ATY
Watertown
$297 Roundtrip, found 4 days ago
$297
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Nov 24 from Bozeman to Watertown, returning Wed, Dec 3, priced at $297 found 4 days ago
Delta
Thu, Nov 27 - Thu, Dec 4
BZN
Bozeman
ATY
Watertown
$316 Roundtrip, found 4 days ago
$316
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Nov 27 from Bozeman to Watertown, returning Thu, Dec 4, priced at $316 found 4 days ago
Delta
Mon, Nov 24 - Thu, Dec 4
BZN
Bozeman
ATY
Watertown
$332 Roundtrip, found 4 days ago
$332
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Nov 24 from Bozeman to Watertown, returning Thu, Dec 4, priced at $332 found 4 days ago
Delta
Wed, Nov 26 - Wed, Dec 3
BZN
Bozeman
ATY
Watertown
$372 Roundtrip, found 4 days ago
$372
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Nov 26 from Bozeman to Watertown, returning Wed, Dec 3, priced at $372 found 4 days ago
United
Mon, Nov 24 - Tue, Dec 2
BZN
Bozeman
ATY
Watertown
$381 Roundtrip, found 4 days ago
$381
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 24 from Bozeman to Watertown, returning Tue, Dec 2, priced at $381 found 4 days ago
Delta
Wed, Nov 26 - Thu, Dec 4
BZN
Bozeman
ATY
Watertown
$407 Roundtrip, found 4 days ago
$407
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Nov 26 from Bozeman to Watertown, returning Thu, Dec 4, priced at $407 found 4 days ago
Delta
Mon, Nov 24 - Thu, Nov 27
BZN
Bozeman
ATY
Watertown
$416 Roundtrip, found 4 days ago
$416
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Nov 24 from Bozeman to Watertown, returning Thu, Nov 27, priced at $416 found 4 days ago
Delta
Thu, Nov 27 - Tue, Dec 2
BZN
Bozeman
ATY
Watertown
$427 Roundtrip, found 4 days ago
$427
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Nov 27 from Bozeman to Watertown, returning Tue, Dec 2, priced at $427 found 4 days ago
Delta
Tue, Nov 25 - Tue, Dec 2
BZN
Bozeman
ATY
Watertown
$443 Roundtrip, found 4 days ago
$443
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Nov 25 from Bozeman to Watertown, returning Tue, Dec 2, priced at $443 found 4 days ago

Frequently asked questions

How much does a flight from Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY) cost?
Snag a cheap one-way flight from $219 or cheap return flight from $281 from Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY)?
The cheapest month to fly from BZN to ATY is November, when demand is low. Off-peak months are often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY)?
To find the cheapest airline that'll fly you from BZN to ATY, use Expedia's filter tool. Customize your search based on what's important to you, 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 Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY)?
There are no daily nonstop flights from Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from BZN to ATY?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the airline, season 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 Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY)?
To avoid possible delays on the Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY) route, travel before 3 PM. Departures after this hour are 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.
Is it cheaper to buy a plane ticket from Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY) last-minute?
Booking your plane ticket from BZN to ATY just before your getaway is typically more expensive. But if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a BZN to ATY flight and hotel package?
You'll typically save money by securing a BZN to ATY flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your preferred flights and accommodations, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Gallatin Field Airport (BZN) to Watertown Regional Airport (ATY)?
In most instances, you can cancel or modify your BZN to ATY flight. However, there may be additional fees, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you'd like more details, head to our Customer Service portal.

Travel information

Origin airport
Bozeman Yellowstone Intl.
Destination airport
Watertown Regional
Roundtrip price
$280
Distance
681 mi

Book with confidence

Bozeman to Watertown Flights

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

 

The best time to book a flight from Bozeman to Watertown

Sunday is one of the best days to book for cheap flights from Bozeman 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 Bozeman 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 Bozeman to Watertown in 2025. You can also book with separate airlines for your outbound and return journeys, from $219 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 Bozeman 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 Bozeman 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.

 

Bozeman to Watertown Flights

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*Available to One Key members.