$77 Cheap Flights from San Antonio (SAT) to Austin (AUS)

View $77 flight on Thu, May 22, 2025Opens in a new window

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Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $77 for one-way flights and $143 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Mon, Jun 2 - Mon, Jun 16
SAT
San Antonio
AUS
Austin
$143 Roundtrip, just found
$143
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Jun 2 from San Antonio to Austin, returning Mon, Jun 16, priced at $143 just found
Southwest Airlines
Mon, Jun 2 - Mon, Jun 16
SAT
San Antonio
AUS
Austin
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Jun 2 from San Antonio to Austin, returning Mon, Jun 16, priced at $148 just found
American Airlines
Tue, Jun 3 - Mon, Jun 9
SAT
San Antonio
AUS
Austin
$171 Roundtrip, found 6 hours ago
$171
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Tue, Jun 3 from San Antonio to Austin, returning Mon, Jun 9, priced at $171 found 6 hours ago
Southwest Airlines
Mon, Jun 2 - Mon, Jun 16
SAT
San Antonio
AUS
Austin
$203 Roundtrip, just found
$203
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Jun 2 from San Antonio to Austin, returning Mon, Jun 16, priced at $203 just found
Southwest Airlines
Mon, Jun 2 - Mon, Jun 16
SAT
San Antonio
AUS
Austin
$208 Roundtrip, just found
$208
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Jun 2 from San Antonio to Austin, returning Mon, Jun 16, priced at $208 just found
Southwest Airlines
Wed, Jul 16 - Wed, Jul 23
SAT
San Antonio
AUS
Austin
$217 Roundtrip, found 1 day ago
$217
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Wed, Jul 16 from San Antonio to Austin, returning Wed, Jul 23, priced at $217 found 1 day ago
American Airlines
Sat, May 24 - Mon, May 26
SAT
San Antonio
AUS
Austin
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, May 24 from San Antonio to Austin, returning Mon, May 26, priced at $228 found 1 day ago
United
Mon, Aug 25 - Mon, Sep 1
SAT
San Antonio
AUS
Austin
$263 Roundtrip, found 7 hours ago
$263
Roundtrip
found 7 hours ago
Select United flight, departing Mon, Aug 25 from San Antonio to Austin, returning Mon, Sep 1, priced at $263 found 7 hours ago
Delta
Sat, May 24 - Sun, May 25
SAT
San Antonio
AUS
Austin
$361 Roundtrip, found 1 day ago
$361
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, May 24 from San Antonio to Austin, returning Sun, May 25, priced at $361 found 1 day ago
Hawaiian Airlines
Tue, May 13 - Sat, May 17
SAT
San Antonio
AUS
Austin
$432 Roundtrip, found 5 days ago
$432
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, May 13 from San Antonio to Austin, returning Sat, May 17, priced at $432 found 5 days ago
Flights from San Antonio (SAT) to Austin (AUS)
Origin airport
San Antonio Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$143
Distance
67 mi

San Antonio to Austin Flights

The cheapest times to fly from San Antonio to Austin

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

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

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

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 San Antonio to Austin in 2025. You can also book with separate airlines for your outbound and return journeys, from $77 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 San Antonio to Austin 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 San Antonio to Austin 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 San Antonio Intl. Airport (SAT) to Austin-Bergstrom Intl. Airport (AUS) cost?
Discover the latest flight deals from SAT to AUS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SAT to AUS?
The cheapest flights from SAT to AUS 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 SAT to AUS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SAT to AUS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from San Antonio Intl. Airport (SAT) to Austin-Bergstrom Intl. Airport (AUS)?
Nonstop flights from San Antonio Intl. Airport (SAT) to Austin-Bergstrom Intl. Airport (AUS) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with Expedia’s filters. Enter your travel dates and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SAT to AUS?
Usually you’ll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, carrier 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 San Antonio Intl. Airport (SAT) to Austin-Bergstrom Intl. Airport (AUS)?
Opt for a flight from San Antonio Intl. Airport (SAT) to Austin-Bergstrom Intl. Airport (AUS) that takes off before 3 PM to reduce the risk of cancellations. 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 San Antonio Intl. Airport (SAT) to Austin-Bergstrom Intl. Airport (AUS) last-minute?
Last-minute fares from SAT to AUS are typically more expensive. To lock in the best prices, start looking for flights well in advance. That being said, if you’re flexible with your travel plans, it’s possible to score a cheap ticket right before you leave.
Is it cheaper to book a SAT to AUS flight and hotel package?
You’ll generally save money by securing a SAT to AUS 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. Once you’ve chosen your preferred flights and accommodations, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Austin-Bergstrom Intl. Airport (AUS)?
Generally, it’s possible to cancel or reschedule your SAT to AUS flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.