Cheap Flights from Sioux City (SUX) to Watertown (ATY)

Popular airlines from Sioux City, IA (SUX-Sioux Gateway) to Watertown, SD (ATY-Watertown Regional)

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Frequently asked questions

How much does a flight from Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY) cost?
Get a cheap one-way flight or cheap return flight from Sioux Gateway Airport (SUX) 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 Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY)?
Planning your trip for is a good way to save, as it's the cheapest month for flights between SUX and ATY. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from SUX to ATY. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY)?
Nonstop flights from Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SUX to ATY?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY)?
To avoid potential delays on the Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY) route, aim to fly before 3 PM. Later departures have a 22% higher chance of being 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 Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY) last-minute?
Waiting until right before your break to book a flight from SUX to ATY often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of snagging a bargain.
Is it cheaper to book a SUX to ATY flight and hotel package?
Opting for a SUX to ATY flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our impressive 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 Sioux Gateway Airport (SUX) to Watertown Regional Airport (ATY)?
If you reserved your SUX 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 ticket type 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 if you want more information.

Travel information

Origin airport
Sioux Gateway
Destination airport
Watertown Regional
Distance
178 mi

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Sioux City to Watertown Flights

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

 

The best time to book a flight from Sioux City to Watertown

Sunday is one of the best days to book for cheap flights from Sioux City 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 Sioux City 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 Sioux City 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 Sioux City 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 Sioux City 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.

 

Sioux City to Watertown Flights

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*Available to One Key members.