$123+ Cheap flights from San Antonio to Austin (SAT - AUS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — AUS
Oct 18 — Oct 251
Round-trip
1 adult, Economy
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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
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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
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Cheapest flights from San Antonio to AustinExplore 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 18, 2026.
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 18, 2026.
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:45 am -
1 stop4h 00m
Tue 11/106:20 pm -
1 stop3h 25m
Deal found 9/15![Southwest logo]()
$246
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:50 am -
1 stop4h 55m
Tue 10/2012:45 pm -
1 stop3h 20m
Deal found 9/15![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:25 pm -
1 stop2h 55m
Sat 12/126:25 am -
1 stop5h 35m
Deal found 9/16![Southwest logo]()
$279
This Southwest deal was found by Cheapflights users on 9/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:10 pm -
1 stop8h 05m
Thu 10/225:10 pm -
1 stop6h 30m
Deal found 9/17![Southwest logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:21 pm -
1 stop23h 05m
Fri 10/238:21 pm -
1 stop23h 05m
Deal found 9/14![Frontier logo]()
$324
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:10 am -
1 stop8h 40m
Fri 11/208:50 pm -
1 stop2h 40m
Deal found 9/14![Southwest logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/158:21 pm -
2 stops38h 36m
Thu 10/228:21 pm -
1 stop23h 05m
Deal found 9/17![Frontier logo]()
$338
Best flights from San Antonio to AustinDiscover carefully curated flight deals from San Antonio to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from San Antonio to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:45 am -
1 stop4h 00m
Tue 11/106:20 pm -
1 stop3h 25m
Deal found 9/15![Southwest logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:21 pm -
1 stop23h 05m
Fri 10/238:21 pm -
1 stop23h 05m
Deal found 9/14![Frontier logo]()
$324
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:50 am -
1 stop4h 55m
Tue 10/2012:45 pm -
1 stop3h 20m
Deal found 9/15![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:25 pm -
1 stop2h 55m
Sat 12/126:25 am -
1 stop5h 35m
Deal found 9/16![Southwest logo]()
$279
This Southwest deal was found by Cheapflights users on 9/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:10 pm -
1 stop8h 05m
Thu 10/225:10 pm -
1 stop6h 30m
Deal found 9/17![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:10 am -
1 stop8h 40m
Fri 11/208:50 pm -
1 stop2h 40m
Deal found 9/14![Southwest logo]()
$328
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:55 pm -
1 stop3h 05m
Sun 10/188:15 pm -
1 stop3h 20m
Deal found 9/15![Southwest logo]()
$344
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:55 pm -
1 stop3h 00m
Mon 10/195:45 am -
1 stop2h 50m
Deal found 9/14![Southwest logo]()
$348
Last-minute flights from San Antonio to AustinDiscover last-minute flight deals from San Antonio to Austin. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Austin. Data last updated September 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:21 pm -
1 stop23h 05m
Fri 10/238:21 pm -
1 stop23h 05m
Deal found 9/14![Frontier logo]()
$324
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:20 pm -
1 stop5h 40m
Sun 10/186:25 am -
1 stop2h 35m
Deal found 9/13![Southwest logo]()
$397
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:55 pm -
1 stop3h 00m
Mon 10/195:45 am -
1 stop2h 50m
Deal found 9/14![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:50 am -
1 stop4h 55m
Tue 10/2012:45 pm -
1 stop3h 20m
Deal found 9/15![Southwest logo]()
$258
This Southwest deal was found by Cheapflights users on 9/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:10 pm -
1 stop8h 05m
Thu 10/225:10 pm -
1 stop6h 30m
Deal found 9/17![Southwest logo]()
$293
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/158:21 pm -
2 stops38h 36m
Thu 10/228:21 pm -
1 stop23h 05m
Deal found 9/17![Frontier logo]()
$338
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:20 pm -
1 stop5h 15m
Fri 10/168:45 pm -
1 stop2h 55m
Deal found 9/15![Southwest logo]()
$344
This Southwest deal was found by Cheapflights users on 9/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:25 am -
2 stops5h 30m
Sun 10/188:15 pm -
1 stop3h 20m
Deal found 9/15![Southwest logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/178:21 pm -
1 stop23h 05m
Mon 10/199:12 pm -
2 stops22h 14m
Deal found 9/18![Frontier logo]()
$380
One-way flights from San Antonio to AustinSearch for one-way flight options from San Antonio to Austin. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
Search for one-way flight options from San Antonio to Austin. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:35 pm -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 9/18. 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 10/58:20 pm -
1 stop23h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$139
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/53:20 pm -
1 stop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$154
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:05 pm -
1 stop6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$156
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/165:25 am -
1 stop3h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Southwest logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/158:21 pm -
1 stop23h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$212
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/299:20 am -
1 stop4h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$241
Find 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 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Southwest) |
One-way from | $123 (Southwest) |
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 7,457,451 searches. Data last updated September 18, 2026.
Use the filters below to find and compare flights from San Antonio to Austin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Wed 10/14
3:35 pm-11:00 pm
1 stop7h 25m
Austin Bergstrom
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$123
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Mon 10/5
8:20 pm-7:29 pm
1 stop23h 09m
Austin Bergstrom
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$139
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Mon 10/5
3:20 pm-8:35 pm
1 stop5h 15m
Austin Bergstrom
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$154
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Fri 12/11
6:05 pm-12:30 am
1 stop6h 25m
Austin Bergstrom
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$156
Quickest round-trip
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Fri 10/16
5:25 am-8:30 am
1 stop3h 05m
Austin Bergstrom
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$189
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 10/15
8:21 pm-7:26 pm
1 stop23h 05m
Austin Bergstrom
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$214
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Sat 10/3
3:30 pm-10:55 pm
1 stop7h 25m
Austin Bergstrom
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$241
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Tue 11/10
6:45 am-10:45 am
1 stop4h 00m
Austin Bergstrom
Tue 11/10
6:20 pm-9:45 pm
1 stop3h 25m
$246
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Tue 10/13
6:50 am-11:45 am
1 stop4h 55m
Austin Bergstrom
Tue 10/20
12:45 pm-4:05 pm
1 stop3h 20m
$258
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Fri 12/11
8:25 pm-11:20 pm
1 stop2h 55m
Austin Bergstrom
Sat 12/12
6:25 am-12:00 pm
1 stop5h 35m
$279
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from San Antonio to Austin
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Austin in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Austin flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Antonio-Austin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
SAT-AUS
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.
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.
Traveling to a place near Austin?
Book flights to Austin if you plan to visit one of these locationsCedar Park
Round Rock
San Marcos
Bastrop
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Seguin
Canyon Lake
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