HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Antonio

$62+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
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 January, booked 86 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap 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 October 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$221
(Kiwi.com)

One-way from

$62
(Trip.com)

Popular in

March

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 ($57 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 October 2025
Search Deals

Find 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 October 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/176:34 amSFO - SAT
1 stop10h 56mFrontier
Tue 11/251:50 pmSAT - SFO
1 stop9h 13mFrontier
Deal found 10/27$221
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Tue 12/210:10 pmSFO - SAT
1 stop17h 02mMultiple Airlines
Sat 12/67:00 amSAT - SFO
2 stops19h 24mMultiple Airlines
Deal found 10/27$222
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:00 amSFO - SAT
2 stops40h 17mFrontier
Wed 12/312:09 pmSAT - SFO
1 stop12h 15mFrontier
Deal found 10/28$223
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/111:38 amSFO - SAT
1 stop5h 17mFrontier
Thu 12/47:56 pmSAT - SFO
2 stops21h 50mFrontier
Deal found 10/27$225
This Frontier deal was found by Cheapflights users on 10/27. 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.
Thu 11/202:54 pmSFO - SAT
1 stop7h 26mFrontier
Thu 12/43:06 pmSAT - SFO
1 stop11h 18mFrontier
Deal found 10/27$226
This Frontier deal was found by Cheapflights users on 10/27. 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.
Thu 11/135:45 amSFO - SAT
1 stop5h 34mFrontier
Tue 11/251:50 pmSAT - SFO
1 stop9h 13mFrontier
Deal found 10/27$227
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Wed 11/266:00 amSFO - SAT
1 stop29h 23mFrontier
Mon 12/11:50 pmSAT - SFO
1 stop29h 01mFrontier
Deal found 10/29$228
This Frontier deal was found by Cheapflights users on 10/27. 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.
Mon 11/106:34 amSFO - SAT
1 stop10h 56mFrontier
Thu 11/1310:46 pmSAT - SFO
1 stop11h 58mFrontier
Deal found 10/27$229
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:55 pmSFO - SAT
1 stop10h 19mMultiple Airlines
Wed 11/123:23 pmSAT - SFO
1 stop7h 59mMultiple Airlines
Deal found 10/28$231
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:43 pmSFO - SAT
1 stop28h 47mFrontier
Sun 11/1610:46 pmSAT - SFO
1 stop24h 49mFrontier
Deal found 10/28$232
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1311:33 pmSFO - SAT
1 stop15h 18mFrontier
Sun 12/282:01 pmSAT - SFO
1 stop19h 47mFrontier
Deal found 10/28$233
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:30 amSFO - SAT
2 stops38h 15mMultiple Airlines
Fri 11/148:25 pmSAT - SFO
1 stop5h 49mMultiple Airlines
Deal found 10/28$234

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 October 29, 2025.
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

Sat 11/15

12:30 am-11:55 am

1 stop9h 25m

San Antonio

Thu 11/27

12:45 pm-6:33 pm

1 stop7h 48m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Wed 1/7

12:43 am-8:41 am

1 stop5h 58m

San Antonio

Mon 1/12

4:04 pm-9:05 pm

1 stop7h 01m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 1/8

11:30 am-9:40 pm

2 stops8h 10m

San Antonio

Mon 1/12

8:40 am-2:55 pm

2 stops8h 15m

$279

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Tue 1/27

6:00 am-1:48 pm

1 stop5h 48m

San Antonio

Fri 1/30

5:20 am-3:58 pm

2 stops12h 38m

$281

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Wed 11/12

12:43 am-10:43 am

1 stop8h 00m

San Antonio

Sun 11/16

7:30 am-9:45 am

Nonstop4h 15m

$299

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 11/27

11:20 am-4:59 pm

Nonstop3h 39m

San Antonio

Sat 11/29

7:30 am-9:45 am

Nonstop4h 15m

$321

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Thu 12/11

6:30 am-4:54 pm

1 stop8h 24m

San Antonio

Tue 12/16

7:30 am-9:45 am

Nonstop4h 15m

$335

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Wed 12/10

4:54 pm-10:30 pm

Nonstop3h 36m

San Antonio

Mon 12/15

1:34 pm-5:50 pm

1 stop6h 16m

$339

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Tue 12/2

4:54 pm-10:30 pm

Nonstop3h 36m

San Antonio

Thu 12/11

11:47 am-5:46 pm

1 stop7h 59m

$339

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Tue 12/2

4:54 pm-10:30 pm

Nonstop3h 36m

San Antonio

Sat 12/13

5:20 am-12:09 pm

1 stop8h 49m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 22 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 October 24, 2025.

The best time to book flights from Fremont to San Antonio is 86 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, December is the cheapest month in which you can book a flight from Fremont to San Antonio (average of $107). Flying from Fremont 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 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 October 29, 2025.

It’s typically best to fly out from Fremont to San Antonio at noon. Doing so could potentially save you 12% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Fremont to San Antonio. Price data was last updated on December 16, 2024.

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

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 October 29, 2025.
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
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,992 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,999 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,124 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 3 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 popular is this Fremont to San Antonio flight route?

    This flight path from Fremont to San Antonio was viewed by 5 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For as low as $269, Delta can have you in San Antonio from Fremont in 5h 58m. 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 most reliable airlines from Fremont to San Antonio?

    Consider Air New Zealand (82%), SkyWest Airlines (78%) or Air Canada (78%) 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 $461, 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 $166 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, December is the cheapest month in which you can book a flight from Fremont to San Antonio (average of $107). Flying from Fremont 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.

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 Dallas/Fort Worth flights
San Francisco to Dallas/Fort Worth flights
Ontario to Dallas/Fort Worth flights
Santa Ana to Dallas/Fort Worth flights
Los Angeles to Hobby flights
San Francisco to Hobby flights
Ontario to Hobby flights
Los Angeles to Austin flights
Los Angeles to George Bush Intcntl flights
Ontario to George Bush Intcntl flights
San Francisco to Austin flights
San Diego to Dallas/Fort Worth flights
San Francisco to George Bush Intcntl flights
Burbank to Dallas/Fort Worth flights
San Jose to Dallas/Fort Worth flights
Los Angeles to Love Field flights
Santa Ana to Hobby flights
Oakland to Dallas/Fort Worth flights
Los Angeles to San Antonio flights
Santa Ana to George Bush Intcntl flights
Sacramento to Dallas/Fort Worth flights
Las Vegas to Dallas/Fort Worth flights
San Diego to Hobby flights
San Francisco to Love Field flights
Burbank to Hobby flights
Ontario to Austin flights
Sacramento to Hobby flights
Burbank to George Bush Intcntl flights
San Diego to George Bush Intcntl flights
Santa Ana to Austin flights
San Jose to Austin flights
San Jose to Hobby flights
Ontario to Love Field flights
Sacramento to George Bush Intcntl flights
Ontario to San Antonio flights
Long Beach to Dallas/Fort Worth flights
San Diego to Austin flights
San Jose to George Bush Intcntl flights
Las Vegas to Austin flights
Las Vegas to Hobby flights
San Jose to Love Field flights
Oakland to Austin flights
San Diego to Love Field flights
Santa Ana to San Antonio flights
Santa Ana to Love Field flights
Burbank to Austin flights
Las Vegas to George Bush Intcntl flights
Oakland to George Bush Intcntl flights
Oakland to Hobby flights
Burbank to San Antonio 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$108Average$267FlexibilityNo cancel feeOn-time65%
FrontierCheapest$130Average$237FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$146Average$290FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$384FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$242Average$378FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$259Average$419FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$262Average$406FlexibilityNo cancel feeOn-time63%

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.