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Fremont

$59+ Cheap flights from San Diego (SAN) 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Fremont are usually found in March or May, booked 88 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from San Diego to Fremont

Keep the following information in mind while searching for San Diego to Fremont flight deals. Data was last updated January 8, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$110
(Kiwi.com)

One-way from

$59
(Alaska Airlines)

Popular in

November

Cheapest in

March

Average price

$132
Provider with most accurate pricing for San Diego-San Francisco flight deals.
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Provider most trusted by Cheapflights users for San Diego-San Francisco flights.
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From San Diego to Fremont
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One-way flight from San Diego to Fremont
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from San Diego to Fremont

Cheapest flights from San Diego to Fremont
Explore the most affordable flight options available from San Diego to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Thu 2/196:25 amSAN - SFO
1 stop11h 33mFrontier
Tue 2/246:55 amSFO - SAN
1 stop14h 46mFrontier
Deal found 1/6$110
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:09 pmSAN - SFO
Nonstop1h 50mAlaska Airlines
Mon 2/239:32 pmSFO - SAN
1 stop12h 19mAlaska Airlines
Deal found 1/8$111
This Southwest deal was found by Cheapflights users on 1/7. 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.
Thu 1/297:10 amSAN - SFO
1 stop3h 45mSouthwest
Sat 1/312:25 pmSFO - SAN
1 stop4h 50mSouthwest
Deal found 1/7$112
This eDestinos deal was found by Cheapflights users on 1/6. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:49 amSAN - SFO
1 stop12h 39mFrontier
Sun 2/86:15 amSFO - SAN
1 stop13h 06mFrontier
Deal found 1/6$113
This Southwest deal was found by Cheapflights users on 1/7. 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.
Tue 2/242:00 pmSAN - SFO
2 stops7h 20mSouthwest
Sat 2/283:20 pmSFO - SAN
Nonstop1h 30mSouthwest
Deal found 1/7$114
This Alaska Airlines deal was found by Cheapflights users on 1/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/315:15 pmSAN - SFO
1 stop4h 40mAlaska Airlines
Sun 2/17:55 pmSFO - SAN
1 stop11h 22mAlaska Airlines
Deal found 1/7$115
This Kiwi.com deal was found by Cheapflights users on 1/5. 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 4/158:59 pmSAN - SFO
Nonstop1h 53mAlaska Airlines
Tue 4/288:20 amSFO - SAN
Nonstop1h 36mAlaska Airlines
Deal found 1/5$116
This Southwest deal was found by Cheapflights users on 1/7. 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.
Fri 1/306:50 amSAN - SFO
1 stop5h 00mSouthwest
Sun 2/16:10 amSFO - SAN
Nonstop1h 30mSouthwest
Deal found 1/7$117
This Alaska Airlines deal was found by Cheapflights users on 1/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/275:15 pmSAN - SFO
1 stop15h 32mAlaska Airlines
Thu 1/2910:12 amSFO - SAN
Nonstop1h 39mAlaska Airlines
Deal found 1/8$118
This Kiwi.com deal was found by Cheapflights users on 1/6. 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 2/18:16 pmSAN - SFO
1 stop28h 12mFrontier
Fri 2/610:22 amSFO - SAN
1 stop10h 28mFrontier
Deal found 1/6$119
This United Airlines deal was found by Cheapflights users on 1/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:08 amSAN - SFO
1 stop4h 04mUnited Airlines
Thu 2/127:00 amSFO - SAN
Nonstop1h 40mUnited Airlines
Deal found 1/8$120
This Alaska Airlines deal was found by Cheapflights users on 1/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:15 amSAN - SFO
1 stop15h 10mAlaska Airlines
Mon 4/2711:10 amSFO - SAN
Nonstop1h 49mAlaska Airlines
Deal found 1/5$121

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego 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 8, 2026.
Use the filters below to find and compare flights from San Diego to Fremont that are best for you.

Fly from

San Diego

Fly to

Fremont

Route

Depart

Return

Price

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Fri 2/20

10:09 pm-11:59 pm

Nonstop1h 50m

San Francisco

Mon 2/23

9:32 pm-9:51 am

1 stop12h 19m

$111

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Fri 2/27

10:09 pm-11:59 pm

Nonstop1h 50m

San Francisco

Mon 3/2

9:32 pm-11:43 am

1 stop14h 11m

$111

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 2/11

9:02 pm-8:46 am

1 stop11h 44m

San Francisco

Wed 2/18

6:40 am-8:18 am

Nonstop1h 38m

$111

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Mon 3/9

10:09 pm-11:59 pm

Nonstop1h 50m

San Francisco

Mon 3/16

9:32 pm-9:51 am

1 stop12h 19m

$111

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sun 2/8

6:43 am-8:32 am

Nonstop1h 49m

San Francisco

Wed 2/11

10:12 am-11:45 am

Nonstop1h 33m

$112

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 2/25

10:09 pm-11:59 pm

Nonstop1h 50m

San Francisco

Sun 3/1

8:11 am-9:49 am

Nonstop1h 38m

$112

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 2/7

8:59 pm-10:47 pm

Nonstop1h 48m

San Francisco

Tue 2/10

5:00 pm-7:17 am

1 stop14h 17m

$113

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 2/12

7:40 am-9:20 am

Nonstop1h 40m

San Francisco

Tue 2/17

3:25 pm-10:20 pm

1 stop6h 55m

$117

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 2/14

6:50 pm-11:15 pm

1 stop4h 25m

San Francisco

Tue 2/17

5:55 pm-9:45 pm

1 stop3h 50m

$117

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Thu 2/5

8:59 pm-10:47 pm

Nonstop1h 48m

San Francisco

Sun 2/8

8:20 am-9:55 am

Nonstop1h 35m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 23 results
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Best time to book a flight from San Diego to Fremont

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Fremont. Price data was last updated on January 2, 2026.

The price you pay for your flight from San Diego to Fremont may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from San Diego to Fremont (average of $18). Flying from San Diego to Fremont in December is currently the most expensive (average of $66). 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 SAN to FR8?

Find hourly flight availability from San Diego 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 8, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 33% on flights from San Diego to Fremont by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Fremont. Price data was last updated on January 3, 2026.

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

Weekly flight availability from San Diego to Fremont

Explore weekly flight availability from San Diego 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 8, 2026.

The most flights from SAN to FR8 are scheduled on a Wednesday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (35 on average).

How much does it cost to fly round-trip from San Diego to Fremont?

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 8, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Hawaiian Airlines from San Diego to Fremont to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,666 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,666 reviews
Alaska Airlines
8.0
Very good
11,666 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
8.0
Very good
4,250 reviews
Alaska Airlines
8.0
Very good
11,666 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,824 reviews
Alaska Airlines
8.0
Very good
11,666 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,141 reviews
Alaska Airlines
8.0
Very good
11,666 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Frontier
5.7
Fair
3,061 reviews
Alaska Airlines
8.0
Very good
11,666 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

Find useful and relevant information for your journey from San Diego 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 Diego to Fremont?

    For a flight from San Diego to Fremont, you will be flying from San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 46 outbound flights to Fremont per day. 8 airlines have flights to Fremont from San Diego on a regular basis.

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

    This flight path from San Diego to Fremont was viewed by 245 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 San Diego to Fremont?

    Departing from San Diego to Fremont will take you 1h 50m. Airlines will cover a distance of 446 mi. Generally, flights for this route are nonstop.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $20. Frontier flights start at $24 while deals on Hawaiian Airlines start at $28 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Diego to Fremont on time: Frontier (85%), SWISS (79%), Emirates (77%).

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

    While on average a flight from San Diego to Fremont is generally $908, our data shows the cheapest flight currently is $58. When looking at the most popular route, (San Diego - San Francisco), you can expect to pay $65 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from San Diego to Fremont (average of $18). Flying from San Diego to Fremont in December is currently the most expensive (average of $66). 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.

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Top 8 airlines flying from San Diego to Fremont

Discover the top 8 airlines that operate flights from San Diego 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 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$24Average$94FlexibilityNo cancel feeOn-time65%
FrontierCheapest$29Average$93FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$30Average$138FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$56Average$182FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$57Average$160FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$77Average$183FlexibilityNo cancel feeOn-time63%
DeltaCheapest$88Average$197FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$197Average$358FlexibilityNo cancel feeOn-time71%

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