$87 Cheap Flights from Austin (AUS) to San Antonio (SAT)

View $87 flight on Fri, Nov 7, 2025Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to San Antonio International Airport (SAT)

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Cheap Flights from Austin to San Antonio (AUS-SAT)

Prices were available within the past 7 days and start at $87 for one-way flights and $163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Oct 19 - Sun, Oct 26
AUS
Austin
SAT
San Antonio
$163 Roundtrip, found 5 days ago
$163
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Oct 19 from Austin to San Antonio, returning Sun, Oct 26, priced at $163 found 5 days ago
Frontier Airlines
Fri, Oct 3 - Sat, Oct 4
AUS
Austin
SAT
San Antonio
$197 Roundtrip, found 1 day ago
$197
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Oct 3 from Austin to San Antonio, returning Sat, Oct 4, priced at $197 found 1 day ago
American Airlines
Wed, Sep 10 - Sat, Sep 13
AUS
Austin
SAT
San Antonio
$198 Roundtrip, found 5 days ago
$198
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Sep 10 from Austin to San Antonio, returning Sat, Sep 13, priced at $198 found 5 days ago
Frontier Airlines
Sat, Sep 6 - Wed, Sep 10
AUS
Austin
SAT
San Antonio
$199 Roundtrip, found 3 days ago
$199
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Sep 6 from Austin to San Antonio, returning Wed, Sep 10, priced at $199 found 3 days ago
Frontier Airlines
Thu, Oct 9 - Sun, Oct 12
AUS
Austin
SAT
San Antonio
$222 Roundtrip, found 6 days ago
$222
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Oct 9 from Austin to San Antonio, returning Sun, Oct 12, priced at $222 found 6 days ago
American Airlines
Thu, Sep 18 - Mon, Sep 22
AUS
Austin
SAT
San Antonio
$223 Roundtrip, found 2 days ago
$223
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Sep 18 from Austin to San Antonio, returning Mon, Sep 22, priced at $223 found 2 days ago
Frontier Airlines
Sat, Sep 27 - Sun, Oct 5
AUS
Austin
SAT
San Antonio
$231 Roundtrip, found 3 days ago
$231
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Sep 27 from Austin to San Antonio, returning Sun, Oct 5, priced at $231 found 3 days ago
Southwest Airlines
Sun, Oct 19 - Sun, Oct 26
AUS
Austin
SAT
San Antonio
$275 Roundtrip, found 5 days ago
$275
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sun, Oct 19 from Austin to San Antonio, returning Sun, Oct 26, priced at $275 found 5 days ago
United
Fri, Oct 3 - Sat, Oct 4
AUS
Austin
SAT
San Antonio
$292 Roundtrip, found 1 day ago
$292
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 3 from Austin to San Antonio, returning Sat, Oct 4, priced at $292 found 1 day ago
Alaska Airlines
Sat, Dec 6 - Fri, Dec 12
AUS
Austin
SAT
San Antonio
$422 Roundtrip, found 4 days ago
$422
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Austin to San Antonio, returning Fri, Dec 12, priced at $422 found 4 days ago

Find the cheapest month to fly from Austin (AUS) to San Antonio (SAT)

August is typically the cheapest month to fly

From $183 - $1,378 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Antonio

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Antonio Intl. SAT. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $564
SAT
San Antonio Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $564
Flights from Austin (AUS) to San Antonio (SAT)
Origin airport
Austin-Bergstrom Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$162
Distance
67 mi

Austin to San Antonio Flights

The cheapest times to fly from Austin to San Antonio

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 San Antonio are during the month of October. You can find some of the cheapest flights from Austin to San Antonio with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to San Antonio

Sunday is one of the best days to book for cheap flights from Austin to San Antonio: 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 San Antonio

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 San Antonio in 2025. You can also book with separate airlines for your outbound and return journeys, from $87 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 San Antonio 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 San Antonio 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 Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT) cost?
Secure a cheap one-way flight from $87 or cheap return flight from $163 from Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT) 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 Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT)?
Planning your trip for October can help you save, as it's the cheapest month for flights between AUS and SAT. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT)?
To find the cheapest airline that'll fly you from AUS to SAT, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT)?
You'll have to catch a flight with a layover if you're traveling from Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT). There are no daily direct flights on this route. However, just 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 AUS to SAT?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on various factors, such as the time of year and airline.*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 San Antonio Intl. Airport (SAT)?
To avoid possible delays on the Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT) route, fly before 3 PM. Later departures have a 22% higher chance of cancellation.**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 San Antonio Intl. Airport (SAT) last-minute?
Waiting until just before your departure to book a flight from AUS to SAT generally means paying more. While it's possible to find some last-minute offers, there's no guarantee. Keep your travel schedule open for the best chance of getting a bargain.
Is it cheaper to book an AUS to SAT flight and hotel package?
Booking an AUS to SAT flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Austin-Bergstrom Intl. Airport (AUS) to San Antonio Intl. Airport (SAT)?
If you booked your AUS to SAT flight within the last 24 hours, you may be able to cancel or modify it at no cost. 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, head to our Customer Service portal for further details.

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*Available to One Key members.