Cheap Flights from Tri-Cities (TRI) to Watertown (ATY)

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Watertown, SD (ATY-Watertown Regional)

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Frequently asked questions

How much does a flight from Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY) cost?
Secure a cheap one-way flight or cheap return flight from Tri-Cities Regional Airport (TRI) 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 Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY)?
Traveling in can help you save, as it's the cheapest month for flights between TRI and ATY. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest TRI to ATY flight.
How many flights per day from Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY)?
There aren't any daily nonstop flights available from Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from TRI to ATY?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based on the airline, time of year 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 Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY)?
To avoid possible delays on the Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY) route, travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY) last-minute?
Last-minute bookings from TRI to ATY are generally more expensive. To lock in the cheapest rates, start looking for flights early. That said, if you can play around with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book a TRI to ATY flight and hotel package?
You can save money by booking a TRI 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. Once you've selected your preferred accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Tri-Cities Regional Airport (TRI) to Watertown Regional Airport (ATY)?
If you reserved your TRI to ATY flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you purchased, 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 for more information.

Travel information

Origin airport
Tri-Cities Regional
Destination airport
Watertown Regional
Distance
965 mi

Book with confidence

Tri-Cities to Watertown Flights

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

 

The best time to book a flight from Tri-Cities to Watertown

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

 

Tri-Cities to Watertown Flights

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