$457 Cheap Flights from Great Falls (GTF) to Watertown (ATY)

View $457 flight on Sat, Sep 6, 2025Opens in a new window

Popular airlines from Great Falls, MT (GTF-Great Falls Intl.) to Watertown, SD (ATY-Watertown Regional)

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Cheap Flights from Great Falls to Watertown (GTF-ATY)

Prices were available within the past 7 days and start at $457 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Great Falls (GTF) to Watertown (ATY)
Origin airport
Great Falls Intl.
Destination airport
Watertown Regional
Distance
700 mi

Frequently asked questions

How much does a flight from Great Falls Intl. Airport (GTF) to Watertown Regional Airport (ATY) cost?
Discover the latest flight deals from GTF to ATY 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 GTF to ATY?
The cheapest flights from GTF to ATY are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from GTF to ATY?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GTF to ATY. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Great Falls Intl. Airport (GTF) to Watertown Regional Airport (ATY)?
There are no daily direct flights available from Great Falls Intl. Airport (GTF) to Watertown Regional Airport (ATY). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from GTF to ATY?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on a range 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 Great Falls Intl. Airport (GTF) to Watertown Regional Airport (ATY)?
Book a flight from Great Falls Intl. Airport (GTF) to Watertown Regional Airport (ATY) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Great Falls Intl. Airport (GTF) to Watertown Regional Airport (ATY) last-minute?
Last-minute fares from GTF to ATY are typically more expensive. To lock in the lowest prices, start looking for flights well ahead of time. That said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book a GTF to ATY flight and hotel package?
You can save money by securing a GTF 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 simple to manage everything in one convenient place. After selecting your preferred flights and accommodations, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Great Falls Intl. Airport (GTF) to Watertown Regional Airport (ATY)?
Typically, it's possible to cancel or reschedule your GTF to ATY flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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