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$113+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to San Antonio are usually found in July or September, booked 9 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 September 11, 2025.

Round-trip from

$230
(CheapOair)

One-way from

$113
(Kiwi.com)

Popular in

March

Cheapest in

July

Average price

$329
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).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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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 September 11, 2025.

This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:00 amSFO - SAT
1 stop27h 19mFrontier
Sat 10/112:04 pmSAT - SFO
1 stop9h 25mFrontier
Deal found 9/9$230
This CheapOair deal was found by Cheapflights users on 9/11. 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 10/233:25 pmSFO - SAT
1 stop26h 16mFrontier
Sun 10/268:26 pmSAT - SFO
2 stops24h 44mFrontier
Deal found 9/11$234
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/108:21 pmSFO - SAT
1 stop18h 16mMultiple Airlines
Mon 10/136:15 pmSAT - SFO
2 stops18h 40mMultiple Airlines
Deal found 9/11$235
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/174:55 pmSFO - SAT
2 stops21h 42mFrontier
Wed 10/223:59 pmSAT - SFO
2 stops18h 45mFrontier
Deal found 9/8$238
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3012:45 amSFO - SAT
1 stop9h 05mDelta
Tue 10/76:00 amSAT - SFO
1 stop5h 45mDelta
Deal found 9/10$239
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:34 amSFO - SAT
1 stop6h 40mFrontier
Sat 10/182:04 pmSAT - SFO
1 stop9h 25mFrontier
Deal found 9/9$240
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 9/276:00 amSFO - SAT
1 stop11h 32mMultiple Airlines
Wed 10/19:47 pmSAT - SFO
2 stops25h 55mMultiple Airlines
Deal found 9/9$241
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:45 amSFO - SAT
1 stop9h 10mDelta
Fri 11/214:57 pmSAT - SFO
1 stop7h 58mDelta
Deal found 9/9$243
This CheapOair deal was found by Cheapflights users on 9/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:00 amSFO - SAT
1 stop27h 23mFrontier
Tue 10/73:59 pmSAT - SFO
1 stop8h 28mFrontier
Deal found 9/9$244
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:34 amSFO - SAT
1 stop11h 01mMultiple Airlines
Tue 10/147:00 amSAT - SFO
2 stops29h 55mMultiple Airlines
Deal found 9/10$245
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sun 9/2810:37 pmSFO - SAT
1 stop12h 39mMultiple Airlines
Tue 9/309:47 pmSAT - SFO
2 stops26h 43mMultiple Airlines
Deal found 9/9$248
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:45 amSFO - SAT
1 stop9h 05mDelta
Wed 10/86:07 pmSAT - SFO
1 stop5h 45mDelta
Deal found 9/9$249

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 September 11, 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

Tue 11/18

12:45 am-11:55 am

1 stop9h 10m

San Antonio

Tue 11/25

5:54 pm-10:07 pm

1 stop6h 13m

$239

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Tue 9/30

12:45 am-11:50 am

1 stop9h 05m

San Antonio

Sun 10/5

6:00 am-11:45 am

1 stop7h 45m

$239

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Fri 10/17

12:43 am-8:38 am

1 stop5h 55m

San Antonio

Thu 10/23

7:38 pm-11:57 pm

1 stop6h 19m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Fri 11/21

5:15 am-1:35 pm

1 stop6h 20m

San Antonio

Mon 11/24

6:45 am-3:05 pm

1 stop10h 20m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Wed 10/1

12:43 am-8:38 am

1 stop5h 55m

San Antonio

Mon 10/6

2:25 pm-6:55 pm

1 stop6h 30m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Fri 10/3

12:43 am-8:38 am

1 stop5h 55m

San Antonio

Wed 10/8

2:25 pm-6:55 pm

1 stop6h 30m

$269

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Fri 9/26

12:45 am-11:50 am

1 stop9h 05m

San Antonio

Wed 10/1

6:05 pm-11:50 pm

1 stop7h 45m

$279

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Sat 9/27

1:20 pm-6:50 pm

Nonstop3h 30m

San Antonio

Wed 10/1

11:45 am-5:46 pm

1 stop8h 01m

$279

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Wed 10/29

12:35 am-11:50 am

1 stop9h 15m

San Antonio

Mon 11/3

4:51 pm-9:57 pm

1 stop7h 06m

$299

San FranciscoSan Antonio

SFO - SAT

SFOSAT

San Francisco

Fri 9/26

12:43 am-10:49 am

1 stop8h 06m

San Antonio

Sun 9/28

7:45 am-9:32 am

Nonstop3h 47m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 August 29, 2025.

The best time to book flights from Fremont to San Antonio is 9 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, August is the cheapest month in which you can book a flight from Fremont to San Antonio (average of $295). Flying from Fremont to San Antonio in March is currently the most expensive (average of $376). 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 September 11, 2025.

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

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 September 22, 2024.

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

Weekly flight availability from Fremont to San Antonio

Explore weekly flight availability from Fremont to San Antonio. 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 September 11, 2025.

The most flights from FR8 to SAT are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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 September 11, 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
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

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 4 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 55m. 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?

    $119 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 Southwest, with prices starting from $120 and $120, respectively.

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

    Consider Air New Zealand (76%), Air Canada (38%) or Emirates (38%) 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 $286, our data shows the cheapest flight currently is $193. When looking at the most popular route, (San Francisco - San Antonio), you can expect to pay $160 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, August is the cheapest month in which you can book a flight from Fremont to San Antonio (average of $295). Flying from Fremont to San Antonio in March is currently the most expensive (average of $376). 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

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Alternative routes for Fremont to San Antonio

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$108Average$242FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$231FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$211Average$412FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$250Average$377FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$254Average$407FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$259Average$422FlexibilityNo cancel feeOn-time69%

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