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Fremont

$75+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SFO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 Wednesday

Cheap 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 September 11, 2025.

Round-trip from

$249
(United Airlines)

One-way from

$75
(Priceline)

Popular in

March

Cheapest in

September

Average price

$329
From San Antonio to Fremont
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One-way flight from San Antonio to Fremont
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Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:45 amSAT - SFO
Nonstop3h 47mUnited Airlines
Sat 10/111:20 pmSFO - SAT
Nonstop3h 30mUnited Airlines
Deal found 9/10$249
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.
Fri 11/72:04 pmSAT - SFO
1 stop9h 31mFrontier
Sat 11/86:34 amSFO - SAT
1 stop5h 43mFrontier
Deal found 9/9$250
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.
Sat 11/84:20 pmSAT - SFO
1 stop7h 09mFrontier
Sun 11/95:45 amSFO - SAT
1 stop5h 34mFrontier
Deal found 9/9$251
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.
Sun 11/910:46 pmSAT - SFO
1 stop11h 58mFrontier
Thu 11/135:45 amSFO - SAT
1 stop5h 34mFrontier
Deal found 9/9$252
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.
Mon 9/228:20 pmSAT - SFO
1 stop5h 56mFrontier
Mon 9/295:45 amSFO - SAT
1 stop5h 31mFrontier
Deal found 9/9$255
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.
Mon 10/136:15 pmSAT - SFO
1 stop29h 07mMultiple Airlines
Fri 10/178:21 pmSFO - SAT
1 stop18h 16mMultiple Airlines
Deal found 9/9$256
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 10/112:04 pmSAT - SFO
1 stop9h 25mMultiple Airlines
Tue 10/1412:00 pmSFO - SAT
2 stops33h 40mMultiple Airlines
Deal found 9/9$257
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 10/115:32 pmSAT - SFO
2 stops32h 37mFrontier
Sat 10/186:44 amSFO - SAT
1 stop7h 53mFrontier
Deal found 9/9$258
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.
Wed 11/125:30 pmSAT - SFO
1 stop8h 28mDelta
Tue 11/1811:56 amSFO - SAT
1 stop7h 23mDelta
Deal found 9/9$259
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.
Sun 11/910:46 pmSAT - SFO
1 stop11h 58mFrontier
Mon 11/176:34 amSFO - SAT
1 stop10h 56mFrontier
Deal found 9/9$261
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/228:20 pmSAT - SFO
1 stop5h 56mFrontier
Fri 9/265:45 amSFO - SAT
1 stop5h 31mFrontier
Deal found 9/9$263
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.
Fri 9/267:25 pmSAT - SFO
1 stop29h 05mFrontier
Mon 9/295:45 amSFO - SAT
1 stop5h 31mFrontier
Deal found 9/9$264

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 September 11, 2025.
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

Sat 12/13

6:29 am-1:34 pm

1 stop9h 05m

San Francisco

Sat 1/3

6:10 am-3:11 pm

1 stop7h 01m

$259

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Mon 12/22

4:20 pm-7:59 pm

1 stop5h 39m

San Francisco

Wed 12/31

6:10 am-3:11 pm

1 stop7h 01m

$259

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Mon 11/10

5:54 pm-10:07 pm

1 stop6h 13m

San Francisco

Fri 11/14

12:45 am-11:55 am

1 stop9h 10m

$259

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Wed 9/24

12:15 pm-6:48 pm

1 stop8h 33m

San Francisco

Tue 9/30

5:55 am-2:29 pm

1 stop6h 34m

$259

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Tue 11/11

5:54 pm-10:07 pm

1 stop6h 13m

San Francisco

Mon 11/17

5:55 am-2:42 pm

1 stop6h 47m

$259

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Sat 10/11

2:25 pm-6:55 pm

1 stop6h 30m

San Francisco

Fri 10/17

12:43 am-8:38 am

1 stop5h 55m

$269

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Fri 10/10

7:38 pm-11:57 pm

1 stop6h 19m

San Francisco

Wed 10/15

12:43 am-8:38 am

1 stop5h 55m

$269

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Mon 10/27

6:00 am-12:45 pm

2 stops8h 45m

San Francisco

Mon 10/27

3:10 pm-10:35 pm

1 stop5h 25m

$286

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Thu 12/11

6:10 pm-12:20 am

1 stop8h 10m

San Francisco

Sun 1/4

6:10 am-3:11 pm

1 stop7h 01m

$299

San AntonioSan Francisco

SAT - SFO

SATSFO

San Antonio

Mon 10/13

10:54 am-7:10 pm

1 stop10h 16m

San Francisco

Thu 10/23

5:45 am-1:19 pm

1 stop5h 34m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
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2
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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 August 29, 2025.

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, January is the cheapest month in which you can book a flight from San Antonio to Fremont (average of $276). Flying from San Antonio to Fremont in June is currently the most expensive (average of $357). 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 September 11, 2025.

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.

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

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

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

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 September 11, 2025.

The most flights from SAT to FR8 are scheduled on a Tuesday (4 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 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 September 11, 2025.
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
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

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

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

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
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

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

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

    Within the past month, 7 users have taken a look at flights from San Antonio to Fremont.

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

    Airlines like Delta fly from San Antonio to Fremont in about 9h 05m. 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 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 (100%), United Airlines (97%), Air Canada( 93%).

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

    While on average a flight from San Antonio to Fremont is generally $578, our data shows the cheapest flight currently is $123. When looking at the most popular route, (San Antonio - San Francisco), you can expect to pay $160 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, January is the cheapest month in which you can book a flight from San Antonio to Fremont (average of $276). Flying from San Antonio to Fremont in June is currently the most expensive (average of $357). 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

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$89Average$182FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$134Average$237FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$234Average$387FlexibilityNo cancel feeOn-time63%
DeltaCheapest$236Average$375FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$366FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$249Average$411FlexibilityNo cancel feeOn-time69%

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