$113 Cheap Flights from Austin (AUS) to Louisville (SDF)

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Find available prices by choosing your travel dates.

Cheap Flights from Austin to Louisville (AUS-SDF)

Prices were available within the past 7 days and start at $113 for one-way flights and $242 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
American Airlines
Delta
United
Spirit Airlines

Frequently asked questions

How much does a flight from Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF) cost?
Book cheap return fares starting from $800 from Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving AUS on May 1 2025 and touching down at SDF. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from AUS to SDF?
The cheapest flights from AUS to SDF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from AUS to SDF?
Right now, the cheapest carrier operating one-way flights from AUS to SDF is Southwest Airlines. You can jet off on this route from $204. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from AUS on May 4 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF)?
Nonstop flights from Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from AUS to SDF?
You’ll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary 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 Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF)?
To land at Louisville Intl. Airport (SDF) on time, book a flight that takes off from Austin-Bergstrom Intl. Airport (AUS) before 3 PM. The chance 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 Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF) last-minute?
Last-minute fares from AUS to SDF are typically more expensive. To lock in the lowest prices, start searching for flights ahead of time. That being said, if your travel plans are flexible, it’s possible to land a cheap ticket just before your departure.
Is it cheaper to book an AUS to SDF flight and hotel package?
You can save money by booking an AUS to SDF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s simple to manage it all in one convenient place. After choosing your preferred flights and accommodations, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to Louisville Intl. Airport (SDF)?
If you reserved your AUS to SDF flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.
*Available to One Key members.