HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Austin

$121+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — AUS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Austin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 September 11, 2025.

Round-trip from

$221
(Frontier)

One-way from

$121
(Kiwi.com)
From San Antonio to Austin Bergstrom
Search Deals
One-way flight from San Antonio to Austin Bergstrom
Search Deals

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 September 11, 2025.

This Frontier deal was found by Cheapflights users on 9/10. 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.
Wed 10/83:59 pmSAT - AUS
1 stop8h 34mFrontier
Wed 10/156:00 amAUS - SAT
1 stop9h 14mFrontier
Deal found 9/10$221
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Fri 10/107:35 pmSAT - AUS
1 stop26h 10mMultiple Airlines
Fri 10/2410:47 pmAUS - SAT
1 stop17h 50mMultiple Airlines
Deal found 9/11$232
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Fri 10/107:35 pmSAT - AUS
1 stop26h 10mSpirit Airlines
Fri 10/247:20 amAUS - SAT
1 stop11h 10mSpirit Airlines
Deal found 9/10$249
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Tue 9/309:47 pmSAT - AUS
2 stops44h 48mMultiple Airlines
Tue 10/72:00 pmAUS - SAT
1 stop9h 40mMultiple Airlines
Deal found 9/9$254
This Frontier deal was found by Cheapflights users on 9/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:59 pmSAT - AUS
1 stop8h 34mFrontier
Tue 10/146:00 amAUS - SAT
1 stop9h 14mFrontier
Deal found 9/11$263
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Tue 10/77:00 amSAT - AUS
1 stop29h 57mMultiple Airlines
Tue 10/142:00 pmAUS - SAT
1 stop9h 40mMultiple Airlines
Deal found 9/9$267
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 9/259:33 pmSAT - AUS
2 stops19h 01mMultiple Airlines
Mon 9/295:45 amAUS - SAT
1 stop12h 27mMultiple Airlines
Deal found 9/10$272
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sat 10/115:32 pmSAT - AUS
1 stop7h 01mMultiple Airlines
Mon 10/137:20 amAUS - SAT
1 stop11h 10mMultiple Airlines
Deal found 9/8$274
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Sat 10/255:32 pmSAT - AUS
1 stop15h 49mMultiple Airlines
Sat 12/69:36 pmAUS - SAT
1 stop7h 33mMultiple Airlines
Deal found 9/8$275
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/107:35 pmSAT - AUS
1 stop26h 10mSpirit Airlines
Mon 10/137:20 amAUS - SAT
1 stop11h 10mSpirit Airlines
Deal found 9/8$283

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 September 11, 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

Wed 10/8

3:59 pm-12:33 am

1 stop8h 34m

Austin Bergstrom

Wed 10/15

6:00 am-3:14 pm

1 stop9h 14m

$221

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Fri 10/10

7:35 pm-9:45 pm

1 stop26h 10m

Austin Bergstrom

Fri 10/24

10:47 pm-4:37 pm

1 stop17h 50m

$232

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Fri 10/10

7:35 pm-9:45 pm

1 stop26h 10m

Austin Bergstrom

Fri 10/24

7:20 am-6:30 pm

1 stop11h 10m

$249

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Sat 10/25

2:04 pm-3:24 pm

2 stops25h 20m

Austin Bergstrom

Sat 12/6

9:36 pm-5:09 am

1 stop7h 33m

$249

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Tue 9/30

9:47 pm-6:35 pm

2 stops44h 48m

Austin Bergstrom

Tue 10/7

2:00 pm-11:40 pm

1 stop9h 40m

$254

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Tue 10/7

3:59 pm-12:33 am

1 stop8h 34m

Austin Bergstrom

Tue 10/14

6:00 am-3:14 pm

1 stop9h 14m

$263

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Tue 10/7

7:00 am-12:57 pm

1 stop29h 57m

Austin Bergstrom

Tue 10/14

2:00 pm-11:40 pm

1 stop9h 40m

$267

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Thu 11/6

4:16 pm-10:47 pm

1 stop30h 31m

$121

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Thu 10/9

7:35 pm-10:25 am

1 stop14h 50m

$121

San AntonioAustin

SAT - AUS

SATAUS

San Antonio

Tue 10/14

7:00 am-12:57 pm

1 stop29h 57m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 17 results
1
2

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 September 11, 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.

  • How long is the flight from San Antonio to Austin?

    Departing from San Antonio to Austin will take you 8h 34m. San Antonio and Austin are separated by a distance of 66 mi.

  • 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, August is the cheapest month in which you can book a flight from San Antonio to Austin (average of $285). 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
Round Rock
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Cedar Park
Canyon Lake
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Austin

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Dallas/Fort Worth flights
Dallas/Fort Worth to Hobby flights
George Bush Intcntl to Dallas/Fort Worth flights
Dallas/Fort Worth to George Bush Intcntl flights
San Antonio to Dallas/Fort Worth flights
Dallas/Fort Worth to San Antonio flights
Dallas/Fort Worth to El Paso flights
Hobby to Love Field flights
Dallas/Fort Worth to Austin flights
Austin to Dallas/Fort Worth flights
Lubbock to Dallas/Fort Worth flights
Hobby to El Paso flights
El Paso to Dallas/Fort Worth flights
El Paso to Hobby flights
George Bush Intcntl to El Paso flights
Love Field to Hobby flights
Dallas/Fort Worth to Corpus Christi flights
El Paso to George Bush Intcntl flights
Dallas/Fort Worth to Lubbock flights
Hobby to San Antonio flights
Hobby to Lubbock flights
Lubbock to Hobby flights
El Paso to Austin flights
San Antonio to Love Field flights
George Bush Intcntl to San Antonio flights
Austin to Hobby flights
Hobby to Austin flights
Austin to El Paso flights
George Bush Intcntl to Austin flights
El Paso to San Antonio flights
Love Field to San Antonio flights
Austin to George Bush Intcntl flights
Dallas/Fort Worth to Brownsville flights
El Paso to Love Field flights
Harlingen to Dallas/Fort Worth flights
George Bush Intcntl to Lubbock flights
McAllen to Dallas/Fort Worth flights
Love Field to El Paso flights
San Antonio to Hobby flights
Austin to Love Field flights
Dallas/Fort Worth to Harlingen flights
Lubbock to George Bush Intcntl flights
Lubbock to Love Field flights
Love Field to Austin flights
Amarillo to Dallas/Fort Worth flights
San Antonio to George Bush Intcntl flights
Midland to Hobby flights
Corpus Christi to Dallas/Fort Worth flights
San Antonio to El Paso flights
Hobby to Brownsville flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.