HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$73+ Cheap flights from Fremont, CA to San Antonio (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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAT
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Fremont 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 Fremont to San Antonio are usually found in July or October, booked 43 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap flight deals from Fremont to San Antonio

Cheapest flights from Fremont to San Antonio
Explore the most affordable flight options available from Fremont to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 29, 2026.

This Frontier deal was found by Cheapflights users on 1/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/128:48 am
SFO
-
SAT
1 stop8h 42m
Frontier
mié. 2/186:12 pm
SAT
-
SFO
1 stop8h 16m
Frontier
Deal found 1/27$235
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
sáb. 2/218:58 am
SFO
-
SAT
1 stop8h 03m
Frontier
dom. 2/227:07 pm
SAT
-
SFO
2 stops21h 16m
Frontier
Deal found 1/29$240
This CheapOair deal was found by Cheapflights users on 1/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/116:55 am
SFO
-
SAT
1 stop7h 22m
Frontier
jue. 2/128:25 pm
SAT
-
SFO
1 stop13h 38m
Frontier
Deal found 1/29$242
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
mié. 3/256:00 am
SFO
-
SAT
1 stop16h 17m
Frontier
jue. 3/2610:05 am
SAT
-
SFO
1 stop16h 23m
Frontier
Deal found 1/29$244
This Orbitz deal was found by Cheapflights users on 1/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/267:00 am
SFO
-
SAT
1 stop8h 05m
Multiple Airlines
mié. 4/293:14 pm
SAT
-
SFO
1 stop10h 11m
Multiple Airlines
Deal found 1/28$245
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
mar. 2/177:15 pm
SFO
-
SAT
2 stops20h 00m
Frontier
vie. 2/209:33 am
SAT
-
SFO
1 stop10h 25m
Frontier
Deal found 1/26$246
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
mar. 3/246:00 am
SFO
-
SAT
1 stop16h 17m
Frontier
jue. 3/264:54 pm
SAT
-
SFO
2 stops17h 04m
Frontier
Deal found 1/29$247
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
mié. 3/186:00 am
SFO
-
SAT
1 stop16h 17m
Frontier
mié. 3/256:45 am
SAT
-
SFO
2 stops16h 53m
Frontier
Deal found 1/27$248
This United Airlines deal was found by Cheapflights users on 1/28. 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.
vie. 7/176:25 pm
SFO
-
SAT
Nonstop3h 46m
United Airlines
mié. 7/229:00 am
SAT
-
SFO
Nonstop4h 13m
United Airlines
Deal found 1/28$249
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
lun. 4/139:01 am
SFO
-
SAT
2 stops27h 18m
Frontier
lun. 4/2012:46 pm
SAT
-
SFO
1 stop27h 40m
Frontier
Deal found 1/27$250

Find flight deals from Fremont to San Antonio

Keep the following information in mind while searching for Fremont to San Antonio flight deals. Data was last updated enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$235
(Frontier)

One-way from

$73
(WAYA)

Popular in

December

Cheapest in

July

Average price

$384
Provider with most accurate pricing for San Francisco-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-San Antonio flights.
Search Deals
From Fremont to San Antonio
Search Deals
One-way flight from Fremont to San Antonio
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont 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 enero 29, 2026.
Use the filters below to find and compare flights from Fremont to San Antonio that are best for you.

Fly from

Fremont

Fly to

San Antonio

Route

Depart

Return

Price

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

sáb. 2/21

4:30 pm-10:05 pm

Nonstop3h 35m

San Antonio

mié. 2/25

11:43 am-5:54 pm

1 stop8h 11m

$259

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

vie. 2/20

2:05 pm-12:35 am

1 stop8h 30m

San Antonio

lun. 2/23

5:59 pm-11:54 pm

1 stop7h 55m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

jue. 2/19

2:05 pm-12:35 am

1 stop8h 30m

San Antonio

lun. 2/23

5:59 pm-11:54 pm

1 stop7h 55m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

jue. 4/2

6:00 am-2:38 pm

1 stop6h 38m

San Antonio

lun. 4/6

5:55 pm-11:59 pm

1 stop8h 04m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

lun. 3/9

4:22 pm-9:59 pm

Nonstop3h 37m

San Antonio

mar. 3/17

6:13 am-8:38 am

Nonstop4h 25m

$279

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

mié. 2/25

11:30 am-9:40 pm

2 stops8h 10m

San Antonio

mié. 3/4

2:45 pm-9:20 pm

2 stops8h 35m

$280

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

jue. 4/2

11:10 pm-5:00 am

Nonstop3h 50m

San Antonio

lun. 4/6

4:45 pm-10:55 pm

1 stop8h 10m

$280

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

vie. 3/6

10:20 am-11:43 pm

2 stops11h 23m

San Antonio

lun. 3/9

5:59 pm-11:59 pm

1 stop8h 00m

$290

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

sáb. 2/21

5:55 am-9:28 pm

2 stops13h 33m

San Antonio

lun. 2/23

5:59 pm-11:54 pm

1 stop7h 55m

$296

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

jue. 2/19

5:55 am-11:43 pm

2 stops15h 48m

San Antonio

sáb. 2/21

5:30 am-12:55 pm

1 stop9h 25m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 23 results
1
2
3

Best time to book a flight from Fremont to San Antonio

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

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

Use this chart to determine the optimal time to book a round-trip flight from Fremont to San Antonio. Price data was last updated on January 23, 2026.

The best time to book flights from Fremont 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 Fremont to San Antonio?

Currently, September is the cheapest month in which you can book a flight from Fremont to San Antonio (average of $108). Flying from Fremont to San Antonio in March is currently the most expensive (average of $186). 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 FR8 to SAT?

Find hourly flight availability from Fremont 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 enero 29, 2026.

It’s typically best to fly out from Fremont to San Antonio in the evening. Doing so could potentially save you 52% on the flight price compared to flying in the morning, which is usually more expensive.

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 enero 29, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Fremont to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Fremont 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 airport do you fly into for flights to San Antonio from Fremont?

    San Antonio (SAT) is the airport you will fly into if you book a flight from Fremont to San Antonio. You should not have trouble finding flights to San Antonio from Fremont; the airport handles an average of 0 inbound flights from Fremont per day. You should also have plenty of airline options to choose from since 7 airlines have flights to the San Antonio airport from Fremont. It is only a 7.6 mi journey from San Antonio (SAT) to San Antonio’s city center.

  • How long is the flight from Fremont to San Antonio?

    For as low as $259, United Airlines can have you in San Antonio from Fremont in 3h 35m. There are 1479 mi between Fremont and San Antonio. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Fremont to San Antonio one-way?

    $72 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and Alaska Airlines, with prices starting from $118 and $118, respectively.

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

    Consider Air Canada (83%), United Airlines (82%) or SkyWest Airlines (81%) when booking your flight. These represent the most reliable airlines when flying from Fremont to San Antonio.

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

    While on average a flight from Fremont to San Antonio is generally $570, our data shows the cheapest flight currently is $249. When looking at the most popular route, (San Francisco - San Antonio), you can expect to pay $200 for that flight.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Fremont to San Antonio (average of $108). Flying from Fremont to San Antonio in March is currently the most expensive (average of $186). 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

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 for Fremont to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Hobby flights
San Francisco to Dallas/Fort Worth flights
Los Angeles to George Bush Intcntl flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to Austin flights
Santa Ana to Dallas/Fort Worth flights
Ontario to Hobby flights
San Francisco to Hobby flights
Ontario to Dallas/Fort Worth flights
Ontario to George Bush Intcntl flights
Santa Ana to Hobby flights
San Francisco to George Bush Intcntl flights
San Diego to Dallas/Fort Worth flights
Burbank to Hobby flights
Santa Ana to George Bush Intcntl flights
San Francisco to Austin flights
Los Angeles to San Antonio flights
Burbank to George Bush Intcntl flights
Sacramento to Dallas/Fort Worth flights
San Jose to Dallas/Fort Worth flights
Burbank to Dallas/Fort Worth flights
Los Angeles to Love Field flights
Ontario to Austin flights
San Diego to Hobby flights
Oakland to Dallas/Fort Worth flights
Las Vegas to Hobby flights
Sacramento to Hobby flights
San Diego to George Bush Intcntl flights
Las Vegas to Dallas/Fort Worth flights
San Francisco to Love Field flights
San Jose to Austin flights
San Diego to Austin flights
Oakland to Hobby flights
San Jose to Hobby flights
Las Vegas to George Bush Intcntl flights
Sacramento to George Bush Intcntl flights
Santa Ana to Love Field flights
Ontario to San Antonio flights
Santa Ana to Austin flights
Long Beach to Dallas/Fort Worth flights
Oakland to Austin flights
Fresno to Dallas/Fort Worth flights
San Jose to George Bush Intcntl flights
Burbank to Austin flights
San Francisco to San Antonio flights
Las Vegas to Austin flights
Sacramento to Love Field flights
Oakland to Love Field flights
Los Angeles to El Paso flights
Oakland to George Bush Intcntl flights

Top 7 airlines flying from Fremont to San Antonio

Discover the top 7 airlines that operate flights from Fremont 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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$146Average$162FlexibilityNo cancel feeOn-time75%
Spirit AirlinesCheapest$149Average$258FlexibilityNo cancel feeOn-time65%
FrontierCheapest$150Average$243FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$390FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$245Average$373FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$256Average$387FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$259Average$415FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.