HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Fremont

$64+ Cheap flights from San Antonio (SAT) to Fremont, CA

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SFO
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Fremont 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 Antonio to Fremont are usually found in September or July, booked 81 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from San Antonio to Fremont

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

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:12 pm
SAT
-
SFO
1 stop8h 16m
Frontier
Sat 2/218:58 am
SFO
-
SAT
1 stop8h 03m
Frontier
Deal found 1/28$128
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:22 pm
SAT
-
SFO
1 stop6h 06m
Frontier
Wed 3/47:35 am
SFO
-
SAT
1 stop7h 40m
Frontier
Deal found 1/28$138
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:12 pm
SAT
-
SFO
1 stop8h 16m
Frontier
Sun 3/89:04 pm
SFO
-
SAT
1 stop10h 02m
Frontier
Deal found 1/28$142
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.
Sat 2/147:56 pm
SAT
-
SFO
1 stop14h 07m
Frontier
Sat 2/216:15 am
SFO
-
SAT
1 stop10h 46m
Frontier
Deal found 1/27$156
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.
Fri 2/278:22 pm
SAT
-
SFO
1 stop13h 41m
Frontier
Sun 3/19:16 pm
SFO
-
SAT
1 stop9h 29m
Frontier
Deal found 1/26$171
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:56 pm
SAT
-
SFO
1 stop6h 32m
Frontier
Thu 2/198:18 pm
SFO
-
SAT
1 stop10h 27m
Frontier
Deal found 1/28$179
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.
Wed 2/186:12 pm
SAT
-
SFO
1 stop8h 16m
Frontier
Sun 2/2210:46 pm
SFO
-
SAT
1 stop15h 32m
Frontier
Deal found 1/27$189
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:36 pm
SAT
-
SFO
1 stop6h 25m
Frontier
Sat 2/2111:00 pm
SFO
-
SAT
1 stop15h 19m
Frontier
Deal found 1/28$190

Find flight deals from San Antonio to Fremont

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$128
(Frontier)

One-way from

$64
(WAYA)

Popular in

March

Cheapest in

September

Average price

$377
Provider with most accurate pricing for San Antonio-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-San Francisco flights.
Search Deals
From San Antonio to Fremont
Search Deals
One-way flight from San Antonio to Fremont
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 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 San Antonio to Fremont 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 January 29, 2026.
Use the filters below to find and compare flights from San Antonio to Fremont that are best for you.

Fly from

San Antonio

Fly to

Fremont

Route

Depart

Return

Price

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Tue 2/17

5:36 pm-10:01 pm

1 stop6h 25m

San Francisco

Sat 2/21

11:00 pm-4:19 pm

1 stop15h 19m

$190

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Tue 2/17

5:36 pm-10:01 pm

1 stop6h 25m

San Francisco

Thu 2/19

8:18 pm-8:45 am

1 stop10h 27m

$200

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Sun 2/15

7:07 pm-12:28 am

1 stop7h 21m

San Francisco

Sat 2/21

8:58 am-7:01 pm

1 stop8h 03m

$204

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Wed 3/18

6:45 am-12:28 am

1 stop19h 43m

San Francisco

Mon 3/23

10:35 pm-12:17 am

2 stops23h 42m

$214

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Sat 2/14

7:56 pm-12:28 am

1 stop6h 32m

San Francisco

Wed 2/18

6:55 am-5:15 pm

1 stop8h 20m

$256

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Tue 4/21

8:45 am-3:32 pm

1 stop8h 47m

San Francisco

Sat 4/25

11:10 pm-5:00 am

Nonstop3h 50m

$259

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Fri 4/10

5:55 pm-11:59 pm

1 stop8h 04m

San Francisco

Wed 4/15

5:00 pm-12:25 am

1 stop5h 25m

$269

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Fri 3/13

6:52 pm-11:59 pm

1 stop7h 07m

San Francisco

Tue 3/17

5:00 am-1:14 pm

1 stop6h 14m

$269

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Tue 5/26

4:10 pm-8:19 pm

1 stop6h 09m

San Francisco

Sat 5/30

6:00 am-1:31 pm

1 stop5h 31m

$269

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Thu 4/2

4:10 pm-11:00 pm

1 stop8h 50m

San Francisco

Sun 4/5

6:00 am-2:38 pm

1 stop6h 38m

$269

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 San Antonio to Fremont

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

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

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

Booking 81 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Fremont. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from San Antonio to Fremont (average of $99). Flying from San Antonio to Fremont in March is currently the most expensive (average of $184). 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 SAT to FR8?

Find hourly flight availability from San Antonio to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

When flying from San Antonio to Fremont, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Antonio to Fremont

Explore weekly flight availability from San Antonio to Fremont. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 29, 2026.

The most flights from SAT to FR8 are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated January 29, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Fremont have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

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
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

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
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

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
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

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
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

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
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

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 Antonio to Fremont. 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 from for flights from San Antonio to Fremont?

    Located just 7.6 mi from the city center, San Antonio is the airport most travelers will use when flying to Fremont from San Antonio. Booking flights from San Antonio (SAT) to Fremont should be relatively easy as there is 1 daily outbound flight to Fremont from 6 different airlines.

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

    Within the past month, 16 users have taken a look at flights from San Antonio to Fremont.

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

    Airlines like Frontier fly from San Antonio to Fremont in about 6h 25m. The time it takes to get you to your destination can typically vary by up to . There are 1479 mi between San Antonio and Fremont.

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

    One-way options have recently been found by users for as low as $79 on Frontier. Other airlines that offer cheap prices include Delta from $101 and American Airlines from $109 one-way.

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

    Before booking your flight to Fremont from San Antonio, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (87%), Air New Zealand (87%), United Airlines( 86%).

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

    While on average a flight from San Antonio to Fremont is generally $1,431, our data shows the cheapest flight currently is $158. When looking at the most popular route, (San Antonio - San Francisco), you can expect to pay $199 for that flight.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from San Antonio to Fremont (average of $99). Flying from San Antonio to Fremont in March is currently the most expensive (average of $184). 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

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 San Antonio to Fremont

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

Top 6 airlines flying from San Antonio to Fremont

Discover the top 6 airlines that operate flights from San Antonio to Fremont. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$197FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$134Average$247FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$225Average$358FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$228Average$366FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$249Average$395FlexibilityNo cancel feeOn-time69%
DeltaCheapest$252Average$357FlexibilityNo cancel feeOn-timeN/A

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.