$90+ Cheap flights from Austin to San Antonio (AUS - SAT)
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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SAT
May 18 — May 251
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 April 18, 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 April 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 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 4/13![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Tue 5/129:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Tue 5/197:54 pm
SAT
- AUS
2 stops14h 41m
Frontier
Deal found 4/14![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Mon 6/89:13 pm
AUS
- SAT
1 stop21h 43m
Frontier
Fri 6/127:51 pm
SAT
- AUS
1 stop28h 08m
Frontier
Deal found 4/14![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Thu 5/149:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Thu 5/217:54 pm
SAT
- AUS
1 stop24h 24m
Frontier
Deal found 4/14![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Sat 6/138:56 pm
SAT
- AUS
2 stops27h 03m
Frontier
Deal found 4/15![Frontier logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Sat 5/26:02 pm
AUS
- SAT
2 stops44h 13m
Frontier
Wed 5/67:54 pm
SAT
- AUS
1 stop24h 24m
Frontier
Deal found 4/17![Frontier logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:57 pm
AUS
- SAT
2 stops17h 12m
Frontier
Fri 5/13:00 pm
SAT
- AUS
1 stop28h 55m
Frontier
Deal found 4/15![Frontier logo]()
$338
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 April 18, 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 April 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 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 4/13![Frontier logo]()
$166
This Southwest deal was found by Cheapflights users on 4/16. 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.
Mon 5/256:05 am
AUS
- SAT
1 stop3h 10m
Southwest
Thu 5/2812:20 pm
SAT
- AUS
1 stop4h 50m
Southwest
Deal found 4/16![Southwest logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Thu 5/145:47 pm
AUS
- SAT
2 stops25h 12m
Frontier
Thu 5/217:54 pm
SAT
- AUS
1 stop24h 24m
Frontier
Deal found 4/14![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Sat 6/138:56 pm
SAT
- AUS
2 stops27h 03m
Frontier
Deal found 4/15![Frontier logo]()
$294
This Southwest deal was found by Cheapflights users on 4/14. 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.
Sat 7/410:00 am
AUS
- SAT
1 stop3h 10m
Southwest
Sun 7/128:30 pm
SAT
- AUS
1 stop3h 45m
Southwest
Deal found 4/14![Southwest logo]()
$367
This Southwest deal was found by Cheapflights users on 4/14. 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 7/135:35 am
AUS
- SAT
1 stop5h 20m
Southwest
Mon 8/3111:10 am
SAT
- AUS
2 stops5h 05m
Southwest
Deal found 4/14![Southwest logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:47 pm
AUS
- SAT
1 stop17h 22m
Frontier
Fri 5/13:00 pm
SAT
- AUS
1 stop28h 55m
Frontier
Deal found 4/15![Frontier logo]()
$358
This Southwest deal was found by Cheapflights users on 4/13. 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.
Mon 5/113:10 pm
AUS
- SAT
2 stops8h 20m
Southwest
Mon 5/181:00 pm
SAT
- AUS
2 stops5h 50m
Southwest
Deal found 4/13![Southwest logo]()
$377
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Sat 5/28:50 pm
AUS
- SAT
1 stop17h 23m
Frontier
Wed 5/67:54 pm
SAT
- AUS
1 stop24h 24m
Frontier
Deal found 4/17![Frontier logo]()
$375
This Southwest deal was found by Cheapflights users on 4/15. 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.
Sun 6/75:40 am
AUS
- SAT
2 stops5h 45m
Southwest
Sat 6/135:10 pm
SAT
- AUS
2 stops5h 30m
Southwest
Deal found 4/15![Southwest logo]()
$377
Last-minute flights from Austin to San AntonioDiscover last-minute flight deals from Austin to San Antonio. Data last updated April 18, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to San Antonio. Data last updated April 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:57 pm
AUS
- SAT
2 stops17h 12m
Frontier
Fri 5/13:00 pm
SAT
- AUS
1 stop28h 55m
Frontier
Deal found 4/15![Frontier logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Sat 5/26:02 pm
AUS
- SAT
2 stops44h 13m
Frontier
Wed 5/67:54 pm
SAT
- AUS
1 stop24h 24m
Frontier
Deal found 4/17![Frontier logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 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 4/13![Frontier logo]()
$166
This Southwest deal was found by Cheapflights users on 4/13. 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.
Mon 5/112:15 pm
AUS
- SAT
1 stop4h 55m
Southwest
Mon 5/186:45 pm
SAT
- AUS
1 stop4h 00m
Southwest
Deal found 4/13![Southwest logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Tue 5/129:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Tue 5/197:54 pm
SAT
- AUS
2 stops14h 41m
Frontier
Deal found 4/14![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Thu 5/149:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Thu 5/217:54 pm
SAT
- AUS
1 stop24h 24m
Frontier
Deal found 4/14![Frontier logo]()
$224
This Southwest deal was found by Cheapflights users on 4/16. 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.
Mon 5/256:05 am
AUS
- SAT
1 stop3h 10m
Southwest
Thu 5/2812:20 pm
SAT
- AUS
1 stop4h 50m
Southwest
Deal found 4/16![Southwest logo]()
$347
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 April 18, 2026.
Search for one-way flight options from Austin to San Antonio. Find affordable one-way fares based on user searches. Data last updated April 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:13 pm
AUS
- SAT
1 stop21h 46m
Frontier
Deal found 4/13![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 6/410:28 am
AUS
- SAT
1 stop8h 31m
Frontier
Deal found 4/17![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 4/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:42 pm
AUS
- SAT
2 stops20h 17m
Frontier
Deal found 4/16![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:42 pm
AUS
- SAT
2 stops44h 17m
Frontier
Deal found 4/13![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1710:42 pm
AUS
- SAT
2 stops20h 17m
Frontier
Deal found 4/15![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Mon 4/279:47 pm
AUS
- SAT
1 stop17h 22m
Frontier
Deal found 4/14![Frontier logo]()
$170
This Southwest deal was found by Cheapflights users on 4/13. 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.
Sat 7/44:35 pm
AUS
- SAT
1 stop2h 50m
Southwest
Deal found 4/13![Southwest logo]()
$174
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 April 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $166 (Kiwi.com) |
One-way from | $90 (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 April 18, 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
Mon 5/11
9:13 pm-6:59 pm
1 stop21h 46m
San Antonio
Mon 5/18
7:54 pm-8:18 pm
1 stop24h 24m
$166
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Thu 5/14
5:47 pm-6:59 pm
2 stops25h 12m
San Antonio
Thu 5/21
7:54 pm-8:18 pm
1 stop24h 24m
$270
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Sun 6/7
9:13 pm-6:59 pm
1 stop21h 46m
San Antonio
Sat 6/13
8:56 pm-11:59 pm
2 stops27h 03m
$294
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Mon 5/25
6:05 am-9:15 am
1 stop3h 10m
San Antonio
Thu 5/28
12:20 pm-5:10 pm
1 stop4h 50m
$347
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Mon 4/27
9:47 pm-3:09 pm
1 stop17h 22m
San Antonio
Fri 5/1
3:00 pm-7:55 pm
1 stop28h 55m
$358
Quickest round-trip
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Sat 7/4
10:00 am-1:10 pm
1 stop3h 10m
San Antonio
Sun 7/12
8:30 pm-12:15 am
1 stop3h 45m
$367
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Mon 7/13
5:35 am-10:55 am
1 stop5h 20m
San Antonio
Mon 8/31
11:10 am-4:15 pm
2 stops5h 05m
$372
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Sat 5/2
8:50 pm-2:13 pm
1 stop17h 23m
San Antonio
Wed 5/6
7:54 pm-8:18 pm
1 stop24h 24m
$375
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Mon 5/11
3:10 pm-11:30 pm
2 stops8h 20m
San Antonio
Mon 5/18
1:00 pm-6:50 pm
2 stops5h 50m
$377
AustinSan Antonio
AUS - SAT
AUSSAT
Austin Bergstrom
Sun 6/7
5:40 am-11:25 am
2 stops5h 45m
San Antonio
Sat 6/13
5:10 pm-10:40 pm
2 stops5h 30m
$377
Showing 1-10 of 19 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 April.
| 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