$128+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — AUS
Oct 1 — Oct 81
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 1, 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 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/168:21 pm -
1 stop23h 05m
Deal found 8/27![Frontier logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/28:20 pm -
1 stop23h 09m
Fri 10/98:21 pm -
1 stop23h 05m
Deal found 8/30![Frontier logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/248:20 pm -
1 stop23h 09m
Thu 10/18:24 pm -
1 stop23h 01m
Deal found 8/27![Frontier logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/249:25 am -
2 stops24h 38m
Thu 10/18:24 pm -
1 stop23h 01m
Deal found 8/27![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/19:25 am -
2 stops24h 38m
Fri 10/28:24 pm -
1 stop23h 01m
Deal found 8/27![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/288:20 pm -
1 stop23h 09m
Mon 10/58:24 pm -
1 stop23h 01m
Deal found 8/31![Frontier logo]()
$355
This Southwest deal was found by Cheapflights users on 8/27. 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 10/17:55 pm -
1 stop3h 00m
Fri 10/210:35 am -
1 stop6h 25m
Deal found 8/27![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 8/30. 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 10/110:30 am -
2 stops6h 10m
Sun 10/48:15 pm -
1 stop3h 20m
Deal found 8/30![Southwest logo]()
$362
This Southwest deal was found by Cheapflights users on 8/31. 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 11/25:25 am -
2 stops5h 15m
Wed 11/44:25 pm -
2 stops5h 10m
Deal found 8/31![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 8/29. 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 12/175:55 pm -
1 stop5h 25m
Sun 12/276:05 am -
1 stop2h 40m
Deal found 8/29![Southwest logo]()
$387
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 1, 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 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/248:20 pm -
1 stop23h 09m
Thu 10/18:24 pm -
1 stop23h 01m
Deal found 8/27![Frontier logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/249:25 am -
2 stops24h 38m
Thu 10/18:24 pm -
1 stop23h 01m
Deal found 8/27![Multiple Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 8/30. 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 10/16:45 pm -
1 stop4h 10m
Sun 10/43:00 pm -
1 stop5h 15m
Deal found 8/30![Southwest logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 10/19:25 am -
2 stops24h 38m
Fri 10/28:24 pm -
1 stop23h 01m
Deal found 8/27![Multiple Airlines logo]()
$346
This Southwest deal was found by Cheapflights users on 8/27. 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 10/17:55 pm -
1 stop3h 00m
Fri 10/210:35 am -
1 stop6h 25m
Deal found 8/27![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 8/31. 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 11/27:20 am -
1 stop4h 30m
Wed 11/41:35 pm -
1 stop5h 35m
Deal found 8/31![Southwest logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 9/178:20 pm -
2 stops37h 43m
Mon 9/211:25 pm -
1 stop6h 00m
Deal found 8/29![Frontier logo]()
$426
This Southwest deal was found by Cheapflights users on 8/31. 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 9/174:00 pm -
1 stop4h 00m
Sat 9/261:40 pm -
1 stop5h 05m
Deal found 8/31![Southwest logo]()
$429
This Southwest deal was found by Cheapflights users on 8/29. 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 9/177:45 am -
1 stop7h 00m
Mon 9/217:15 pm -
1 stop2h 45m
Deal found 8/29![Southwest logo]()
$429
This Southwest deal was found by Cheapflights users on 8/31. 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 9/168:10 am -
1 stop5h 40m
Sat 9/268:35 am -
2 stops5h 15m
Deal found 8/31![Southwest logo]()
$434
This Southwest deal was found by Cheapflights users on 8/31. 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 9/188:55 am -
1 stop3h 45m
Sat 9/2612:50 pm -
2 stops5h 55m
Deal found 8/31![Southwest logo]()
$434
This Southwest deal was found by Cheapflights users on 8/30. 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 9/148:55 am -
1 stop5h 00m
Fri 9/181:40 pm -
1 stop5h 20m
Deal found 8/30![Southwest logo]()
$461
Last-minute flights from San Antonio to AustinDiscover last-minute flight deals from San Antonio to Austin. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Austin. Data last updated September 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/310:24 pm -
2 stops18h 15m
Wed 9/98:24 pm -
1 stop23h 01m
Deal found 8/31![Frontier logo]()
$703
This Southwest deal was found by Cheapflights users on 8/31. 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 9/141:00 pm -
1 stop3h 15m
Thu 9/178:40 am -
1 stop4h 10m
Deal found 8/31![Southwest logo]()
$461
This Southwest deal was found by Cheapflights users on 8/31. 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 9/168:10 am -
1 stop5h 40m
Sat 9/268:35 am -
2 stops5h 15m
Deal found 8/31![Southwest logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 9/178:20 pm -
2 stops37h 43m
Mon 9/211:25 pm -
1 stop6h 00m
Deal found 8/29![Frontier logo]()
$426
This Southwest deal was found by Cheapflights users on 8/31. 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 9/174:00 pm -
1 stop4h 00m
Sat 9/261:40 pm -
1 stop5h 05m
Deal found 8/31![Southwest logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/248:20 pm -
1 stop23h 09m
Thu 10/18:24 pm -
1 stop23h 01m
Deal found 8/27![Frontier logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/249:25 am -
2 stops24h 38m
Thu 10/18:24 pm -
1 stop23h 01m
Deal found 8/27![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/288:20 pm -
1 stop23h 09m
Mon 10/58:24 pm -
1 stop23h 01m
Deal found 8/31![Frontier logo]()
$355
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 1, 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 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/228:20 pm -
1 stop23h 09m
Deal found 8/27![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/188:20 pm -
1 stop23h 09m
Deal found 8/27![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/218:20 pm -
1 stop23h 09m
Deal found 8/27![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/198:20 pm -
2 stops37h 43m
Deal found 8/27![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Wed 9/2310:03 am -
2 stops31h 45m
Deal found 8/27![Frontier logo]()
$176
This Southwest deal was found by Cheapflights users on 8/30. 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 10/2312:20 pm -
1 stop4h 30m
Deal found 8/30![Southwest logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/248:20 pm -
1 stop23h 09m
Deal found 8/27![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/249:25 am -
2 stops24h 38m
Deal found 8/27![Multiple Airlines logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 8/27. 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.
Sun 9/209:25 am -
2 stops24h 38m
Deal found 8/27![Multiple Airlines logo]()
$195
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 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $289 (Kiwi.com) |
One-way from | $128 (Kiwi.com) |
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 1, 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
Thu 9/24
8:20 pm-7:29 pm
1 stop23h 09m
Austin Bergstrom
Thu 10/1
8:24 pm-7:25 pm
1 stop23h 01m
$336
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 9/24
9:25 am-10:03 am
2 stops24h 38m
Austin Bergstrom
Thu 10/1
8:24 pm-7:25 pm
1 stop23h 01m
$338
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 10/1
9:25 am-10:03 am
2 stops24h 38m
Austin Bergstrom
Fri 10/2
8:24 pm-7:25 pm
1 stop23h 01m
$346
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 10/1
6:45 pm-10:55 pm
1 stop4h 10m
Austin Bergstrom
Sun 10/4
3:00 pm-8:15 pm
1 stop5h 15m
$357
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 10/1
7:55 pm-10:55 pm
1 stop3h 00m
Austin Bergstrom
Fri 10/2
10:35 am-5:00 pm
1 stop6h 25m
$357
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Mon 11/2
7:20 am-11:50 am
1 stop4h 30m
Austin Bergstrom
Wed 11/4
1:35 pm-7:10 pm
1 stop5h 35m
$357
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 9/17
8:20 pm-10:03 am
2 stops37h 43m
Austin Bergstrom
Mon 9/21
1:25 pm-7:25 pm
1 stop6h 00m
$426
Quickest round-trip
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 9/17
4:00 pm-8:00 pm
1 stop4h 00m
Austin Bergstrom
Sat 9/26
1:40 pm-6:45 pm
1 stop5h 05m
$429
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Thu 9/17
7:45 am-2:45 pm
1 stop7h 00m
Austin Bergstrom
Mon 9/21
7:15 pm-10:00 pm
1 stop2h 45m
$429
San AntonioAustin
SAT San Antonio - AUS Austin Bergstrom
SATAUS
San Antonio
Wed 9/16
8:10 am-1:50 pm
1 stop5h 40m
Austin Bergstrom
Sat 9/26
8:35 am-1:50 pm
2 stops5h 15m
$434
Showing 1-10 of 19 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 locationsRound Rock
Cedar Park
San Marcos
Bastrop
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Seguin
Canyon Lake
Browse thousands of different options on Cheapflights for your next trip
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