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$91+ Cheap flights from San Antonio to Austin (SAT - AUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — AUS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from San Antonio to Austin

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$159
(Frontier)

One-way from

$91
(American Airlines)
From San Antonio to Austin Bergstrom
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One-way flight from San Antonio to Austin Bergstrom
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Find flight deals from San Antonio to Austin

Cheapest flights from San Antonio to Austin
Explore the most affordable flight options available from San Antonio to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Frontier deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:33 pmSAT - AUS
1 stop12h 18mFrontier
Mon 9/86:30 amAUS - SAT
1 stop12h 45mFrontier
Deal found 8/14$159
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:44 pmSAT - AUS
1 stop6h 38mAmerican Airlines
Wed 9/173:31 pmAUS - SAT
1 stop6h 42mAmerican Airlines
Deal found 8/13$171
This FlightHub deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:41 pmSAT - AUS
1 stop7h 47mFrontier
Sun 9/286:30 amAUS - SAT
1 stop13h 04mFrontier
Deal found 8/13$239
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/82:01 pmSAT - AUS
1 stop8h 03mFrontier
Mon 9/156:30 amAUS - SAT
1 stop12h 45mFrontier
Deal found 8/11$256
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:54 pmSAT - AUS
2 stops21h 26mSpirit Airlines
Mon 9/85:45 amAUS - SAT
1 stop12h 27mSpirit Airlines
Deal found 8/14$281
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:45 pmSAT - AUS
3 stops34h 17mSpirit Airlines
Sun 9/215:45 amAUS - SAT
1 stop12h 27mSpirit Airlines
Deal found 8/14$294
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/812:45 pmSAT - AUS
2 stops32h 54mSpirit Airlines
Mon 9/155:45 amAUS - SAT
1 stop12h 27mSpirit Airlines
Deal found 8/11$298
This Booking.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:41 pmSAT - AUS
1 stop7h 47mFrontier
Fri 9/2610:59 pmAUS - SAT
1 stop16h 51mFrontier
Deal found 8/13$300
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/192:25 pmSAT - AUS
1 stop18h 26mUnited Airlines
Sun 9/217:45 pmAUS - SAT
1 stop19h 41mUnited Airlines
Deal found 8/14$337
This Expedia deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/192:01 pmSAT - AUS
1 stop8h 08mFrontier
Sun 9/219:41 pmAUS - SAT
2 stops15h 35mFrontier
Deal found 8/14$340

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Austin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from San Antonio to Austin that are best for you.

Fly from

San Antonio

Fly to

Austin

Route

Depart

Return

Price

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Thu 9/4

9:33 pm-9:51 am

1 stop12h 18m

Austin Bergstrom

Mon 9/8

6:30 am-7:15 pm

1 stop12h 45m

$159

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Wed 9/10

1:44 pm-8:22 pm

1 stop6h 38m

Austin Bergstrom

Wed 9/17

3:31 pm-10:13 pm

1 stop6h 42m

$171

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Fri 9/26

12:41 pm-8:28 pm

1 stop7h 47m

Austin Bergstrom

Sun 9/28

6:30 am-7:34 pm

1 stop13h 04m

$239

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Mon 9/8

2:01 pm-10:04 pm

1 stop8h 03m

Austin Bergstrom

Mon 9/15

6:30 am-7:15 pm

1 stop12h 45m

$256

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Thu 9/4

2:54 pm-12:20 pm

2 stops21h 26m

Austin Bergstrom

Mon 9/8

5:45 am-6:12 pm

1 stop12h 27m

$281

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Fri 9/19

12:45 pm-11:02 pm

3 stops34h 17m

Austin Bergstrom

Sun 9/21

5:45 am-6:12 pm

1 stop12h 27m

$294

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Mon 9/8

12:45 pm-9:39 pm

2 stops32h 54m

Austin Bergstrom

Mon 9/15

5:45 am-6:12 pm

1 stop12h 27m

$298

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Fri 9/26

12:41 pm-8:28 pm

1 stop7h 47m

Austin Bergstrom

Fri 9/26

10:59 pm-3:50 pm

1 stop16h 51m

$300

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Fri 9/19

2:25 pm-8:51 am

1 stop18h 26m

Austin Bergstrom

Sun 9/21

7:45 pm-3:26 pm

1 stop19h 41m

$337

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Fri 9/19

2:01 pm-10:09 pm

1 stop8h 08m

Austin Bergstrom

Sun 9/21

9:41 pm-1:16 pm

2 stops15h 35m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 20 results
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Best time to book a flight from San Antonio to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Austin

What is the cheapest time of day to fly from SAT to AUS?

Find hourly flight availability from San Antonio to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

A simple way to save on the total cost of your ticket is to fly from San Antonio to Austin in the morning. If you’re flexible enough to do this you can expect to save up to 47% on your trip compared to booking a flight at noon.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from San Antonio to Austin one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $91. However, be on the lookout for offers from Spirit Airlines and Frontier, as they are both options that can get you from San Antonio to Austin for a low price.

  • Can I find deals for flights from San Antonio to Austin that include hotel bookings?

    Yes. In addition to deals on San Antonio to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Austin.

  • Can I find deals for business class flights from San Antonio to Austin?

    Yes. Cheapflights offers flight deals from San Antonio to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Austin?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Austin (average of $286). Flying from San Antonio to Austin in March is currently the most expensive (average of $362). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
Seguin
Horseshoe Bay

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Alternative routes for San Antonio to Austin

See prices for flight routes from nearby airports that may be better suited for you.
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