$158+ Cheap flights from Austin to San Antonio (AUS - SAT)
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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SAT
Apr 26 — May 31
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Austin to San Antonio 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 Austin to San Antonio
Cheapest
Best
Last-minute
One-way
Cheapest flights from Austin to San AntonioExplore the most affordable flight options available from Austin to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
Explore the most affordable flight options available from Austin to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 5/119:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Mon 5/187:54 pm
SAT
- AUS
1 stop24h 24m
Frontier
Deal found 3/27![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/216:13 pm
AUS
- SAT
1 stop21h 40m
Frontier
Tue 4/284:04 pm
SAT
- AUS
1 stop25h 14m
Frontier
Deal found 3/24![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/911:00 am
AUS
- SAT
1 stop13h 19m
Frontier
Mon 4/1311:38 am
SAT
- AUS
2 stops29h 40m
Frontier
Deal found 3/25![Frontier logo]()
$220
This Southwest deal was found by Cheapflights users on 3/23. 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 4/2212:30 pm
AUS
- SAT
1 stop6h 05m
Southwest
Wed 4/298:20 am
SAT
- AUS
1 stop3h 40m
Southwest
Deal found 3/23![Southwest logo]()
$228
This Southwest deal was found by Cheapflights users on 3/24. 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 4/2110:00 am
AUS
- SAT
2 stops8h 15m
Southwest
Tue 4/286:30 am
SAT
- AUS
2 stops5h 30m
Southwest
Deal found 3/24![Southwest logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 5/86:00 am
AUS
- SAT
1 stop17h 59m
Multiple Airlines
Mon 5/117:54 pm
SAT
- AUS
1 stop24h 24m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$252
Best flights from Austin to San AntonioDiscover carefully curated flight deals from Austin to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
Discover carefully curated flight deals from Austin to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 4/911:00 am
AUS
- SAT
1 stop13h 19m
Frontier
Mon 4/1311:38 am
SAT
- AUS
2 stops29h 40m
Frontier
Deal found 3/27![Frontier logo]()
$226
This Southwest deal was found by Cheapflights users on 3/23. 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 4/2212:30 pm
AUS
- SAT
1 stop6h 05m
Southwest
Wed 4/298:20 am
SAT
- AUS
1 stop3h 40m
Southwest
Deal found 3/23![Southwest logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 5/86:00 am
AUS
- SAT
1 stop17h 59m
Multiple Airlines
Mon 5/117:54 pm
SAT
- AUS
1 stop24h 24m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 4/64:59 pm
AUS
- SAT
1 stop16h 28m
Spirit Airlines
Fri 4/101:22 pm
SAT
- AUS
2 stops26h 42m
Spirit Airlines
Deal found 3/22![Spirit Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 3/24. 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 4/2110:00 am
AUS
- SAT
2 stops8h 15m
Southwest
Tue 4/286:30 am
SAT
- AUS
2 stops5h 30m
Southwest
Deal found 3/24![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 3/23. 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 4/208:00 am
AUS
- SAT
1 stop4h 25m
Southwest
Mon 4/271:00 pm
SAT
- AUS
2 stops5h 50m
Southwest
Deal found 3/23![Southwest logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 4/78:12 pm
AUS
- SAT
2 stops37h 15m
Spirit Airlines
Sun 4/1210:22 am
SAT
- AUS
1 stop29h 42m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$371
This Southwest deal was found by Cheapflights users on 3/22. 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 4/237:55 pm
AUS
- SAT
1 stop3h 35m
Southwest
Sun 4/265:25 am
SAT
- AUS
1 stop4h 25m
Southwest
Deal found 3/22![Southwest logo]()
$347
Last-minute flights from Austin to San AntonioDiscover last-minute flight deals from Austin to San Antonio. Data last updated March 27, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to San Antonio. Data last updated March 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/911:00 am
AUS
- SAT
1 stop13h 19m
Frontier
Mon 4/1311:38 am
SAT
- AUS
2 stops29h 40m
Frontier
Deal found 3/25![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/176:02 pm
AUS
- SAT
2 stops19h 15m
Multiple Airlines
Mon 4/203:00 pm
SAT
- AUS
1 stop26h 18m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 3/23. 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 4/208:00 am
AUS
- SAT
1 stop4h 25m
Southwest
Mon 4/275:45 pm
SAT
- AUS
1 stop5h 00m
Southwest
Deal found 3/23![Southwest logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 4/216:13 pm
AUS
- SAT
1 stop21h 40m
Frontier
Tue 4/284:04 pm
SAT
- AUS
1 stop25h 14m
Frontier
Deal found 3/24![Frontier logo]()
$175
This Southwest deal was found by Cheapflights users on 3/24. 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 4/2110:00 am
AUS
- SAT
2 stops8h 15m
Southwest
Tue 4/286:30 am
SAT
- AUS
2 stops5h 30m
Southwest
Deal found 3/24![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 3/23. 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 4/2212:30 pm
AUS
- SAT
1 stop6h 05m
Southwest
Wed 4/298:20 am
SAT
- AUS
1 stop3h 40m
Southwest
Deal found 3/23![Southwest logo]()
$228
One-way flights from Austin to San AntonioSearch for one-way flight options from Austin to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
Search for one-way flight options from Austin to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 3/306:12 am
AUS
- SAT
3 stops30h 15m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$258
This Southwest deal was found by Cheapflights users on 3/24. 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 4/26:30 pm
AUS
- SAT
1 stop5h 10m
Southwest
Deal found 3/24![Southwest logo]()
$289
This Mytrip deal was found by Cheapflights users on 3/26. 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.
Mon 3/304:59 pm
AUS
- SAT
1 stop16h 28m
Spirit Airlines
Deal found 3/26![Spirit Airlines logo]()
$296
This United Airlines deal was found by Cheapflights users on 3/23. 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.
Mon 5/47:22 pm
AUS
- SAT
1 stop3h 37m
United Airlines
Deal found 3/23![United Airlines logo]()
$592
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 5/47:59 pm
AUS
- SAT
3 stops40h 03m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$1,483
Find flight deals from Austin to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to San Antonio (SAT). 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 March 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $175 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin to San Antonio 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 March 27, 2026.
Use the filters below to find and compare flights from Austin to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Thu 4/9
11:00 am-12:19 am
1 stop13h 19m
San Antonio
Mon 4/13
11:38 am-5:18 pm
2 stops29h 40m
$226
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Wed 4/22
12:30 pm-6:35 pm
1 stop6h 05m
San Antonio
Wed 4/29
8:20 am-12:00 pm
1 stop3h 40m
$228
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Tue 4/21
10:00 am-6:15 pm
2 stops8h 15m
San Antonio
Tue 4/28
6:30 am-12:00 pm
2 stops5h 30m
$251
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Fri 5/8
6:00 am-11:59 pm
1 stop17h 59m
San Antonio
Mon 5/11
7:54 pm-8:18 pm
1 stop24h 24m
$252
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Mon 4/20
8:00 am-12:25 pm
1 stop4h 25m
San Antonio
Mon 4/27
1:00 pm-6:50 pm
2 stops5h 50m
$330
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Mon 4/6
4:59 pm-9:27 am
1 stop16h 28m
San Antonio
Fri 4/10
1:22 pm-4:04 pm
2 stops26h 42m
$338
Quickest round-trip
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Thu 4/23
7:55 pm-11:30 pm
1 stop3h 35m
San Antonio
Sun 4/26
5:25 am-9:50 am
1 stop4h 25m
$347
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Tue 4/7
8:12 pm-9:27 am
2 stops37h 15m
San Antonio
Sun 4/12
10:22 am-4:04 pm
1 stop29h 42m
$371
Cheapest one-way
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Mon 3/30
6:12 am-12:27 pm
3 stops30h 15m
$258
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Thu 4/2
6:30 pm-11:40 pm
1 stop5h 10m
$289
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Austin to San Antonio
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 Austin to San Antonio in March.
| 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 Austin-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Austin-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-San Antonio 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 Austin-San Antonio 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 Austin to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Austin with our price prediction graph.
AUS-SAT
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 Austin to San Antonio. 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 San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Austin
Popular flights
San Antonio flight routes