$374 Cheap Flights from Waterloo (ALO) to Sioux Falls (FSD)

View $374 flight on Fri, Sep 12, 2025Opens in a new window

Popular airlines from Waterloo, IA (ALO-Waterloo Regional) to Sioux Falls Regional Airport (FSD)

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Cheap Flights from Waterloo to Sioux Falls (ALO-FSD)

Prices were available within the past 7 days and start at $374 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Waterloo (ALO) to Sioux Falls (FSD)
Origin airport
Waterloo Regional
Destination airport
Sioux Falls Regional
Distance
230 mi

Waterloo to Sioux Falls Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Waterloo 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 Waterloo 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 Waterloo to Sioux Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $374 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 Waterloo 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 Waterloo 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 Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD) cost?
Secure a cheap one-way flight from $374 or cheap return flight from Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD) 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 Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD)?
is the least expensive month to fly from ALO to FSD. Avoiding peak travel times is often the key to landing a great deal.
What is the cheapest airline that flies from Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD)?
To find the cheapest airline flying from ALO to FSD, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD)?
You'll have to take a flight with a layover when traveling from Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from ALO to FSD?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary 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 Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD)?
Choose a flight from Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD) that leaves before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be 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 Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD) last-minute?
Last-minute fares from ALO to FSD are usually more expensive. To secure the cheapest rates, start looking for flights as early as possible. That said, if you're flexible with your travel plans, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book an ALO to FSD flight and hotel package?
You'll generally save money by securing an ALO 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 place. After selecting your preferred accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Waterloo Regional Airport (ALO) to Sioux Falls Regional Airport (FSD)?
In most instances, you can cancel or modify your ALO to FSD flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need more details, go to our Customer Service portal.

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*Available to One Key members.