Cheap Flights from Champaign (CMI) to Watertown (ATY)

Popular airlines from Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard) to Watertown, SD (ATY-Watertown Regional)

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Flights from Champaign (CMI) to Watertown (ATY)
Origin airport
University Of Illinois Urbana-Champaign Williard
Destination airport
Watertown Regional
Distance
564 mi

Champaign to Watertown Flights

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

 

The best time to book a flight from Champaign to Watertown

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

 

Frequently asked questions

Is it cheaper to buy a plane ticket from Willard Airport to Watertown Regional Airport (ATY) last minute?
When it comes to booking your flights, it’s better to be prepared. While you may be able to find a deal on a CMI to Watertown Regional Airport (ATY) flight at the last minute, fares usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days in advance. For international trips it’s between three and four months.
What airports do you fly into for Watertown from Champaign?
You can fly from Champaign to Watertown through both Watertown Regional Airport (ATY) and Brookings, SD (BKX-Brookings Regional). Land at Watertown Regional Airport (ATY) and you’ll be around 3 mi to the northwest of the heart of Watertown. Drop your bags off at your hotel and then experience some of the city’s popular sights, including Lake Kampeska and Terry Redlin Museum.
Can I change the date of my flight from Willard Airport to Watertown Regional Airport (ATY)?
You can quickly make changes to your Willard Airport to Watertown Regional Airport trip by logging in to the Expedia Trips portal. But before amending dates or times, read through the conditions and rules in your itinerary to see what the carrier will let you do and if any charges apply. Some airlines have a change fee per person, on top of any difference in prices. But if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also find your way to our Customer Service portal for more handy information and to connect with our Virtual Agent.

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