Fremont

$79+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SFO
Apr 22 — Apr 291
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Cheapflights Tip: The best prices from San Antonio to Fremont are usually found in September or July, booked 23 days in advance, depart on a Thursday or Friday and return on a Wednesday

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 March 23, 2026.

This CheapOair deal was found by Cheapflights users on 3/19. 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.
Mon 4/1311:38 am
SAT
-
SFO
1 stop28h 14m
Frontier
Thu 4/166:00 am
SFO
-
SAT
1 stop6h 15m
Frontier
Deal found 3/19$261
This Southwest deal was found by Cheapflights users on 3/23. 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.
Mon 4/206:45 pm
SAT
-
SFO
1 stop6h 20m
Southwest
Mon 4/273:00 pm
SFO
-
SAT
2 stops7h 05m
Southwest
Deal found 3/23$265
This Gotogate deal was found by Cheapflights users on 3/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:45 am
SAT
-
SFO
1 stop19h 43m
Frontier
Thu 4/28:31 am
SFO
-
SAT
1 stop5h 20m
Frontier
Deal found 3/23$266
This Kiwi.com deal was found by Cheapflights users on 3/21. 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 4/224:49 pm
SAT
-
SFO
1 stop8h 36m
Frontier
Mon 4/2710:26 pm
SFO
-
SAT
2 stops14h 43m
Frontier
Deal found 3/21$268
This Frontier deal was found by Cheapflights users on 3/18. 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 4/154:49 pm
SAT
-
SFO
1 stop8h 36m
Frontier
Sun 4/196:00 am
SFO
-
SAT
1 stop6h 13m
Frontier
Deal found 3/18$270
This CheapOair deal was found by Cheapflights users on 3/23. 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 3/2610:05 am
SAT
-
SFO
1 stop16h 23m
Frontier
Tue 3/316:00 am
SFO
-
SAT
1 stop16h 17m
Frontier
Deal found 3/23$271
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/154:49 pm
SAT
-
SFO
1 stop8h 36m
Frontier
Fri 4/174:59 pm
SFO
-
SAT
2 stops20h 10m
Frontier
Deal found 3/19$274
This CheapOair deal was found by Cheapflights users on 3/18. 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 4/26:45 am
SAT
-
SFO
1 stop19h 38m
Frontier
Mon 4/69:00 pm
SFO
-
SAT
1 stop25h 19m
Frontier
Deal found 3/18$281
This Southwest deal was found by Cheapflights users on 3/22. 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 4/154:25 pm
SAT
-
SFO
2 stops8h 20m
Southwest
Sat 4/1811:45 am
SFO
-
SAT
2 stops8h 25m
Southwest
Deal found 3/22$284
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 5/157:54 pm
SAT
-
SFO
2 stops27h 25m
Frontier
Tue 5/196:00 am
SFO
-
SAT
1 stop10h 59m
Frontier
Deal found 3/20$285
This Southwest deal was found by Cheapflights users on 3/23. 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.
Sat 5/95:40 am
SAT
-
SFO
2 stops13h 45m
Southwest
Wed 5/137:20 am
SFO
-
SAT
2 stops7h 40m
Southwest
Deal found 3/23$289

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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(CheapOair)

One-way from

$79
(Super.com)

Popular in

March

Cheapest in

September

Average price

$519
Provider with most accurate pricing for San Antonio-San Francisco flight deals.
Provider most trusted by Cheapflights users for San Antonio-San Francisco flights.
From San Antonio to Fremont
One-way flight from San Antonio to Fremont
Highest demand for flights based on searches. 14% potential increase in price ($61 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 March 23, 2026.
Use the filters below to find and compare flights from San Antonio to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Wed 4/15

7:15 pm-11:59 pm

1 stop6h 44m

San Francisco

Sat 4/18

11:10 pm-5:00 am

Nonstop3h 50m

$319

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Fri 4/24

7:15 pm-11:59 pm

1 stop6h 44m

San Francisco

Sun 4/26

11:10 pm-5:00 am

Nonstop3h 50m

$319

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Thu 4/16

6:12 pm-11:54 pm

1 stop7h 42m

San Francisco

Mon 4/20

9:35 pm-9:46 am

1 stop10h 11m

$329

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Fri 8/7

6:25 am-11:15 am

1 stop6h 50m

San Francisco

Fri 8/14

6:00 am-5:10 pm

2 stops9h 10m

$364

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Wed 7/22

12:20 pm-10:15 pm

2 stops11h 55m

San Francisco

Tue 7/28

5:00 am-12:15 pm

1 stop5h 15m

$364

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Tue 4/7

5:55 pm-10:45 pm

2 stops6h 50m

San Francisco

Tue 4/14

5:55 am-3:05 pm

2 stops7h 10m

$369

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Thu 4/16

4:45 pm-10:55 pm

1 stop8h 10m

San Francisco

Mon 4/20

11:10 pm-5:00 am

Nonstop3h 50m

$399

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Wed 6/10

6:45 am-11:35 am

1 stop6h 50m

San Francisco

Mon 6/15

10:50 pm-10:20 am

1 stop9h 30m

$408
Quickest round-trip

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Fri 8/7

7:43 am-12:15 pm

1 stop6h 32m

San Francisco

Fri 8/14

4:26 pm-10:02 pm

Nonstop3h 36m

$409

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Sat 6/20

5:30 am-11:25 am

1 stop7h 55m

San Francisco

Mon 6/22

12:45 am-8:27 am

1 stop5h 42m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

Showing 1-10 of 23 resultsSorted by cheapest first
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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 March 13, 2026.

Booking 23 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 $89). Flying from San Antonio to Fremont in March is currently the most expensive (average of $168). 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 March 23, 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 March 23, 2026.

The most flights from SAT to FR8 are scheduled on a Sunday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 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 March 23, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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.

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 are 3 daily outbound flights to Fremont from 6 different airlines.

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

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

    Airlines like United Airlines, Delta, and Southwest fly from San Antonio to Fremont in about 6h 44m. The time it takes to get you to your destination can typically vary by up to 58m. There are 1479 mi between San Antonio and Fremont. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $78 on Delta. Other airlines that offer cheap prices include Frontier from $79 and Southwest from $125 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 (84%), Air Canada (84%), United Airlines( 84%).

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

    While on average a flight from San Antonio to Fremont is generally $1,143, our data shows the cheapest flight currently is $253. When looking at the most popular route, (San Antonio - San Francisco), you can expect to pay $239 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 $89). Flying from San Antonio to Fremont in March is currently the most expensive (average of $168). 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

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Alternative routes for San Antonio to Fremont

See prices for flight routes from nearby airports that may be better suited for you.

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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$280FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$128Average$210FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$231Average$357FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$249Average$379FlexibilityNo cancel feeOn-time69%
DeltaCheapest$252Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$371FlexibilityNo cancel feeOn-time71%

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