$129 Cheap Flights from Austin (AUS) to Sioux Falls (FSD)

Austin (AUS) to Sioux Falls (FSD) at a glance

Travel between Austin (AUS) and Sioux Falls (FSD) with a choice of airlines offering this domestic short-haul route. Explore options for cheap flights from Austin to find the itinerary that suits your budget and schedule as you discover the attractions and neighborhoods of Sioux Falls. Get all the essential flight information from Austin-Bergstrom International Airport (AUS) to Sioux Falls Regional Airport (FSD) to make your journey smooth and enjoyable.

• Fastest flight duration: around 3h 45m in-flight, plus roughly 1h 45m layover with one stop
• Route distance: roughly 900 miles (1,450 km)
• Flights per week: around 9 departures on average
• Typical fares (one-way): economy tickets often range from $110–$475, depending on seasonality and how far ahead you book

Flights from Austin-Bergstrom International Airport (AUS) to Sioux Falls Regional Airport (FSD)

Recent traveler bookings reveal the top airlines flying from Austin to Sioux Falls, often favored for their one-stop service. Common layover points include Dallas-Fort Worth International Airport (DFW) with an approximate 1 hour and 45-minute layover, Denver International Airport (DEN) at around 2 hours and 30 minutes, and Minneapolis-St. Paul International Airport (MSP) also offering about a 1 hour and 45-minute layover. This variety allows you to tailor your journey by balancing price, total travel time, and cabin class to find the ideal itinerary.

• American Airlines: As a comprehensive service provider, this airline offers one-stop routes with one-way ticket prices generally falling between $115 and $485. It represents about 59% of the departures on this itinerary, featuring an in-flight duration of 3 hours and 45 minutes, with the entire travel time averaging around 5 hours and 30 minutes, including layovers.
• United: This full-service airline provides one-stop options, with one-way fares typically ranging from $125 to $480. United accounts for roughly 16% of flights on this route, maintaining an in-flight time of 3 hours and 45 minutes, while the total journey duration is about 5 hours and 30 minutes, factoring in layovers.
• Delta: Another full-service airline, Delta offers one-stop services with one-way fares typically ranging from $120 to $365. It handles around 15% of the departures along this route, featuring a flight time of 3 hours and 45 minutes, and a total travel time close to 5 hours and 30 minutes, including layovers.
• Frontier Airlines: This budget airline provides one-stop services, with one-way fares generally falling between $110 and $185. Frontier makes up about 9% of the departures for this route, with an in-flight duration of 3 hours and 45 minutes, leading to an overall travel time of approximately 5 hours and 30 minutes, including layovers.

Best time to fly from Austin (AUS) to Sioux Falls (FSD)

The most popular months for travelers flying from Austin to Sioux Falls are April, May, and July, when peak temperatures in Sioux Falls reach up to 73.2°F in July. If you prefer quieter travel, consider December, the least busy time to visit with temperatures around 22.8°F and typically the lowest average one-way fare (around $176). Flight availability peaks in May, with approximately 12 flights per week, making it easier to find convenient departure times. February and March have the fewest flights, with approximately 8 flights per week.

• Cheapest time to fly: December usually offers good deals with average one-way fare around $176, roughly 21% cheaper than the yearly average.
• More budget-friendly months to fly: May and June typically offer average one-way fares of around $190.
• Most flight options: May has the highest number of flights from Austin to Sioux Falls, with approximately 12 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Austin (AUS) to Sioux Falls (FSD)

• San Antonio to Sioux Falls (SAT-FSD): San Antonio International Airport (SAT) is located approximately 67 miles from Austin-Bergstrom International Airport (AUS). One-way economy tickets on this route generally fall between $100 and $445, influenced by the time of year and how far in advance you book. Passengers can expect one-stop options, with common layover points at Dallas-Fort Worth International Airport (DFW) and Denver International Airport (DEN). Major airlines serving this route include American Airlines and United, with first-class service also available.
• Austin to Sioux City (AUS-SUX): Sioux Gateway Airport (SUX) is about 83 miles from Sioux Falls Regional Airport (FSD). The one-way economy fares for this journey usually range from $120 to $400, varying based on the season and booking lead time. This route typically features one-stop flights, with popular layover locations at Denver International Airport (DEN) and O'Hare International Airport (ORD). United Airlines is the leading carrier on this route.

How to find the best prices for flights from Austin (AUS) to Sioux Falls (FSD)

Getting some of the best deals on flights from Austin to Sioux Falls is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually available when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Departures in the morning (5 AM-12 PM) tend to be less expensive and are also the most popular. Additionally, flying on Monday often results in lower prices, although Thursday remains the busiest travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Sioux Falls hotel and flight deals.
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sioux Falls Regional Airport from Austin-Bergstrom International Airport

Sioux Falls welcomes travelers from Austin with a range of transport options based on price, convenience, and proximity. Here's how to reach Sioux Falls efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Sioux Falls, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
• Car rental: Renting a car from Sioux Falls Regional Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sioux Falls Regional Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Austin to Sioux Falls Flights

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

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

Sunday is one of the best days to book for cheap flights from Austin 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 Austin 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 Austin to Sioux Falls in 2026. You can also book with separate airlines for your outbound and return journeys, from $129 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 Austin 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 Austin 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.