$56+ 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAT
Jan 9 — Jan 161
1 adult, Economy
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Find cheap flights from San Francisco 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.Cheapflights Tip: The best prices from San Francisco to San Antonio are usually found in July or October, booked 43 days in advance, depart on a Wednesday or Saturday and return on a Thursday
Cheap flight deals from San Francisco to San Antonio
Cheapest flights from San Francisco to San AntonioExplore 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 December 10, 2025.
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 December 10, 2025.
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 12/246:35 pmSFO - SAT
Nonstop3h 24mUnited Airlines
Tue 1/68:52 amSAT - SFO
Nonstop4h 03mUnited Airlines
Deal found 12/9![United Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/254:07 pmSFO - SAT
1 stop6h 10mFrontier
Mon 1/52:01 pmSAT - SFO
2 stops34h 58mFrontier
Deal found 12/9![Frontier logo]()
$291
This Booking.com deal was found by Cheapflights users on 12/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:24 amSFO - SAT
1 stop15h 53mFrontier
Wed 12/316:45 amSAT - SFO
1 stop19h 39mFrontier
Deal found 12/7![Frontier logo]()
$300
This Southwest deal was found by Cheapflights users on 12/9. 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 12/3110:35 amSFO - SAT
2 stops9h 40mSouthwest
Wed 1/76:25 amSAT - SFO
2 stops7h 40mSouthwest
Deal found 12/9![Southwest logo]()
$313
This Trip.com deal was found by Cheapflights users on 12/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:20 pmSFO - SAT
1 stop15h 41mFrontier
Wed 12/316:45 amSAT - SFO
1 stop19h 39mFrontier
Deal found 12/8![Frontier logo]()
$318
This Delta deal was found by Cheapflights users on 12/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:05 pmSFO - SAT
1 stop8h 14mDelta
Wed 1/71:03 pmSAT - SFO
2 stops12h 25mDelta
Deal found 12/8![Delta logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/276:00 amSFO - SAT
1 stop6h 07mFrontier
Mon 1/52:01 pmSAT - SFO
2 stops34h 58mFrontier
Deal found 12/9![Frontier logo]()
$328
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/116:30 amSFO - SAT
1 stop8h 24mUnited Airlines
Thu 12/183:54 pmSAT - SFO
Nonstop4h 18mUnited Airlines
Deal found 12/10![United Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/306:00 amSFO - SAT
1 stop21h 35mMultiple Airlines
Sun 1/42:01 pmSAT - SFO
2 stops34h 02mMultiple Airlines
Deal found 12/9![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/2610:44 pmSFO - SAT
2 stops13h 23mFrontier
Mon 1/52:01 pmSAT - SFO
1 stop27h 52mFrontier
Deal found 12/9![Frontier logo]()
$338
This United Airlines deal was found by Cheapflights users on 12/9. 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.
Wed 12/316:35 pmSFO - SAT
Nonstop3h 24mUnited Airlines
Wed 1/71:20 pmSAT - SFO
1 stop6h 30mUnited Airlines
Deal found 12/9![United Airlines logo]()
$339
Find 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 December 10, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $269 (Delta) |
One-way from | $56 (Kiwi.com) |
Popular in | December |
Cheapest in | July |
Average price | $480 |
Good round-trip deal | $405 or less |
Good one-way deal | $188 or less |
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 December 10, 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
Wed 2/18
4:30 pm-10:05 pm
Nonstop3h 35m
San Antonio
Tue 2/24
9:30 am-11:52 am
Nonstop4h 22m
$276
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Wed 2/4
11:40 am-10:28 pm
1 stop8h 48m
San Antonio
Sun 2/8
7:00 am-3:58 pm
2 stops10h 58m
$280
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Mon 1/5
6:00 am-9:28 pm
2 stops13h 28m
San Antonio
Thu 1/8
7:35 am-5:49 pm
2 stops12h 14m
$292
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Thu 1/29
10:30 am-11:43 pm
2 stops11h 13m
San Antonio
Sat 1/31
2:35 pm-11:30 pm
2 stops10h 55m
$312
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Tue 3/10
10:29 am-12:13 am
2 stops11h 44m
San Antonio
Tue 3/17
12:47 pm-11:53 pm
2 stops13h 06m
$312
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Tue 2/3
5:30 am-4:05 pm
2 stops8h 35m
San Antonio
Sun 2/8
8:40 am-3:30 pm
2 stops8h 50m
$313
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Tue 1/27
10:30 am-11:43 pm
2 stops11h 13m
San Antonio
Fri 1/30
7:00 am-3:58 pm
2 stops10h 58m
$314
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Thu 1/8
10:35 am-11:43 pm
2 stops11h 08m
San Antonio
Sat 1/10
7:00 am-5:49 pm
2 stops12h 49m
$339
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Thu 1/8
6:00 am-5:25 pm
2 stops9h 25m
San Antonio
Thu 1/15
7:00 am-5:49 pm
2 stops12h 49m
$342
San FranciscoSan Antonio
SFO - SAT
SFOSAT
San Francisco
Mon 1/5
4:42 pm-5:05 am
1 stop10h 23m
San Antonio
Thu 1/8
6:46 pm-9:58 pm
1 stop29h 12m
$343
Showing 1-10 of 17 results
Compare providers for flights from San Francisco 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 San Francisco to San Antonio in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Francisco-San Antonio flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Francisco-San Antonio flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Francisco-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-San Antonio flights, Cheapflights users trust CheapOair the most. CheapOair 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 Francisco-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 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
Prices
Airlines
More
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 December 5, 2025.
The best time to book flights from San Francisco to San Antonio is 43 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, September is the cheapest month in which you can book a flight from San Francisco to San Antonio (average of $108). Flying from San Francisco to San Antonio in March is currently the most expensive (average of $204). 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 December 10, 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 32% 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 December 6, 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. Monday 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 December 10, 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.
Entertainment
7.5
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Entertainment
7.5
Overall
7.9
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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.
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
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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.
Top 5 airlines flying from San Francisco to San Antonio
Discover the top 5 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 December 10, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$148 | Average$249 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$236 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$347 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$259 | Average$431 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$268 | Average$408 | FlexibilityNo cancel fee | On-time63% |