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$71+ Cheap flights from San Francisco to San Antonio (SFO - 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAT
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheapflights Tip: The best prices from San Francisco to San Antonio are usually found in July or September, booked 9 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap flight deals from San Francisco to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 August 17, 2025.

Round-trip from

$233
(Kiwi.com)

One-way from

$71
(Kiwi.com)

Popular in

March

Cheapest in

July

Average price

$339

Good round-trip deal

$329 or less
From San Francisco to San Antonio
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One-way flight from San Francisco to San Antonio
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Highest demand for flights based on searches. 14% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from San Francisco to San Antonio.
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Find flight deals from San Francisco to San Antonio

Cheapest flights from San Francisco to San Antonio
Explore the most affordable flight options available from San Francisco to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Tue 10/76:34 amSFO - SAT
1 stop6h 40mMultiple Airlines
Fri 10/109:25 pmSAT - SFO
2 stops16h 59mMultiple Airlines
Deal found 8/15$233
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:45 amSFO - SAT
1 stop5h 26mFrontier
Sun 8/248:18 pmSAT - SFO
1 stop13h 48mFrontier
Deal found 8/17$237
This Frontier deal was found by Cheapflights users on 8/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:26 amSFO - SAT
1 stop11h 07mFrontier
Mon 8/251:56 pmSAT - SFO
2 stops11h 18mFrontier
Deal found 8/15$238
This CheapOair deal was found by Cheapflights users on 8/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/95:45 amSFO - SAT
1 stop5h 34mFrontier
Sun 10/128:26 pmSAT - SFO
2 stops24h 44mFrontier
Deal found 8/15$239
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Tue 10/288:00 amSFO - SAT
1 stop18h 47mMultiple Airlines
Sun 11/210:46 pmSAT - SFO
2 stops17h 54mMultiple Airlines
Deal found 8/15$240
This Frontier deal was found by Cheapflights users on 8/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:45 amSFO - SAT
1 stop5h 26mFrontier
Mon 8/258:18 pmSAT - SFO
1 stop6h 01mFrontier
Deal found 8/15$241
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:45 amSFO - SAT
1 stop5h 38mFrontier
Sun 9/288:20 pmSAT - SFO
1 stop5h 56mFrontier
Deal found 8/16$245
This Frontier deal was found by Cheapflights users on 8/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:45 amSFO - SAT
2 stops11h 30mFrontier
Sat 9/204:45 pmSAT - SFO
1 stop6h 36mFrontier
Deal found 8/15$247
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/229:21 amSFO - SAT
1 stop8h 12mFrontier
Sat 8/233:34 pmSAT - SFO
1 stop8h 59mFrontier
Deal found 8/15$248
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:38 pmSFO - SAT
2 stops19h 03mFrontier
Sun 10/262:14 pmSAT - SFO
2 stops11h 55mFrontier
Deal found 8/17$249
This Frontier deal was found by Cheapflights users on 8/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:59 pmSFO - SAT
2 stops14h 15mFrontier
Mon 10/132:04 pmSAT - SFO
2 stops12h 15mFrontier
Deal found 8/15$250
This Southwest deal was found by Cheapflights users on 8/14. 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.
Thu 9/41:55 pmSFO - SAT
1 stop7h 55mSouthwest
Tue 9/95:00 pmSAT - SFO
1 stop5h 35mSouthwest
Deal found 8/14$252

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 August 17, 2025.
Use the filters below to find and compare flights from San Francisco to San Antonio that are best for you.

Fly from

San Francisco

Fly to

San Antonio

Route

Depart

Return

Price

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Tue 10/14

6:34 am-3:14 pm

1 stop6h 40m

San Antonio

Fri 10/17

4:29 pm-12:19 am

2 stops9h 50m

$238

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 9/18

9:39 am-8:48 pm

2 stops9h 09m

San Antonio

Sun 9/21

8:20 pm-8:36 am

2 stops14h 16m

$238

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Sat 10/18

6:44 am-4:37 pm

1 stop7h 53m

San Antonio

Wed 10/22

6:00 am-10:27 pm

2 stops18h 27m

$239

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 9/25

5:45 am-1:23 pm

1 stop5h 38m

San Antonio

Sun 9/28

8:20 pm-12:16 am

1 stop5h 56m

$245

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Mon 9/8

5:45 am-7:15 pm

2 stops11h 30m

San Antonio

Sat 9/20

4:45 pm-9:21 pm

1 stop6h 36m

$247

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Fri 9/12

10:49 am-2:27 pm

2 stops25h 38m

San Antonio

Sun 9/14

9:33 pm-6:19 pm

2 stops22h 46m

$248

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 10/23

5:45 am-7:41 pm

2 stops11h 56m

San Antonio

Sun 10/26

2:14 pm-12:09 am

2 stops11h 55m

$249

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 10/9

5:45 am-7:41 pm

2 stops11h 56m

San Antonio

Mon 10/13

2:04 pm-12:19 am

2 stops12h 15m

$249

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 9/4

5:45 am-1:23 pm

1 stop5h 38m

$71

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 10/23

5:45 am-1:19 pm

1 stop5h 34m

$71

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 17 results
1
2

Best time to book a flight from San Francisco to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from San Francisco 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 Francisco to San Antonio

How far ahead should I book a flight from San Francisco to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to San Antonio. Price data was last updated on August 8, 2025.

The best time to book flights from San Francisco to San Antonio is 9 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to San Antonio?

Currently, August is the cheapest month in which you can book a flight from San Francisco to San Antonio (average of $295). Flying from San Francisco to San Antonio in March is currently the most expensive (average of $376). 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.

What is the cheapest time of day to fly from SFO to SAT?

Find hourly flight availability from San Francisco to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

One of the essential ways to save on airfare from San Francisco to San Antonio is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 31% on airfare.

What is the cheapest day to fly from San Francisco to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to San Antonio. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their San Francisco to San Antonio flight should consider departing on Monday evenings when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What’s the top layover airport for flights from San Francisco to San Antonio?

Share of 1-stop round-trip flights from San Francisco to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 50% of 1-stop itineraries from San Francisco to San Antonio on Cheapflights.

What’s the cheapest layover airport for flights from San Francisco to San Antonio?

Average round-trip fare for 1-stop flights from San Francisco to San Antonio, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $177.

What’s the fastest layover option from San Francisco to San Antonio?

Shortest average travel time for 1-stop one-way flights from San Francisco to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 8h 52m.

Which airport typically offers the quickest layover for flights from San Francisco to San Antonio?

Average layover duration for 1-stop one-way flights from San Francisco to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 3h 43m.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated August 17, 2025.
Read through reviews of airlines operating flights from San Francisco to San Antonio, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,986 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,919 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,212 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Francisco to San Antonio?

    If you wish to fly to San Antonio from San Francisco, then you need to book flights from San Francisco to San Antonio. There are 2 flights from San Francisco (SFO) to San Antonio (SAT) per day to choose from. Flights to San Antonio from San Francisco are available from 7 different airlines, which means you should have some options if you want to compare airfare deals. 3h 24m is how long a nonstop flight from San Francisco to San Antonio typically takes.

  • How popular is this San Francisco to San Antonio flight route?

    Flights from San Francisco to San Antonio have been viewed 5 times in the past calendar month.

  • What are the cheapest airlines flying from San Francisco to San Antonio round-trip?

    Flying on Frontier is currently your cheapest option to San Antonio, with prices starting at $112. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Alaska Airlines, with the lowest prices starting at $155 and $211, respectively. Users have found that Frontier is 70% cheaper than the other options available to this destination.

  • What are the most reliable airlines from San Francisco to San Antonio?

    No one likes to see their flight delayed. When booking a flight from San Francisco to San Antonio consider choosing Air Canada (77%), Emirates (77%) or United Airlines (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Francisco to San Antonio?

    Looking for the cheapest flight from San Francisco to San Antonio? While on average our users pay $464, our data indicates the cheapest price to be $256. The most popular route (San Francisco - San Antonio), is priced around $149.

  • Where are the most common layover locations when flying from San Francisco to San Antonio?

    Most of the time, San Francisco to San Antonio flights that have layovers will stop in Phoenix.

  • What are some popular things to do or see while on a layover in Phoenix?

    Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are the most popular attractions in Phoenix if you're in need of something to do during your layover. Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall can be accessed by traveling approximately 4.0 mi, 16.7 mi, and 4.3 mi, respectively from Phoenix Sky Harbor Intl. Travelers in need of a car in Phoenix can rent one for about $54 per day.

  • Where are the least popular layover locations for San Francisco to San Antonio flights?

    The least popular layover on flights from San Francisco to San Antonio is Dallas.

  • Can I find deals for flights from San Francisco to San Antonio that include hotel bookings?

    Yes. In addition to deals on San Francisco to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to San Antonio.

  • Can I find deals for business class flights from San Francisco to San Antonio?

    Yes. Cheapflights offers flight deals from San Francisco to San Antonio 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 Francisco to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from San Francisco to San Antonio (average of $295). Flying from San Francisco to San Antonio in March is currently the most expensive (average of $376). 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 San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for San Francisco to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from San Francisco to San Antonio

Discover the top 7 airlines that operate flights from San Francisco to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$228FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$155Average$230FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$211Average$412FlexibilityNo cancel feeOn-time75%
DeltaCheapest$216Average$337FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$222Average$338FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$260Average$447FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$268Average$409FlexibilityNo cancel feeOn-time63%

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