$348 Cheap Flights from Watertown (ART) to Sioux Falls (FSD)

View $348 flight on Fri, Dec 12, 2025Opens in a new window

Popular airlines from Watertown, NY (ART-Watertown Intl.) to Sioux Falls Regional Airport (FSD)

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Cheap Flights from Watertown to Sioux Falls (ART-FSD)

Prices were available within the past 7 days and start at $348 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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Flights from Watertown (ART) to Sioux Falls (FSD)
Origin airport
Watertown Intl.
Destination airport
Sioux Falls Regional
Distance
1030 mi

Watertown to Sioux Falls Flights

The cheapest times to fly from Watertown to Sioux Falls

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

 

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

Sunday is one of the best days to book for cheap flights from Watertown to Sioux Falls: 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 Watertown to Sioux Falls

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 Watertown to Sioux Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $348 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 Watertown to Sioux Falls 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 Watertown to Sioux Falls 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 Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD) cost?
Secure a cheap one-way flight from $348 or cheap return flight from Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD)?
The cheapest month to fly from ART to FSD is , when demand is low. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD)?
To find the cheapest airline that'll fly you from ART to FSD, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD)?
Nonstop flights from Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ART to FSD?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change 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 Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD)?
To touch down at Sioux Falls Regional Airport (FSD) without delays, book a flight that leaves from Watertown Intl. Airport (ART) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD) last-minute?
Holding off until just before your departure to book your flight from ART to FSD often results in higher prices. While you may find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for the best chance of getting a bargain.
Is it cheaper to book an ART to FSD flight and hotel package?
You'll typically save money by booking an ART to FSD 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 it all in one convenient place. After choosing your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Watertown Intl. Airport (ART) to Sioux Falls Regional Airport (FSD)?
You can usually reschedule or cancel your ART to FSD flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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