Fremont

$55+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
May 7 — May 141
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Cheapflights Tip: The best prices from San Diego to Fremont are usually found in May or July, booked 90 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap 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 April 7, 2026.

This Flightnetwork deal was found by Cheapflights users on 4/2. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:47 pm
SAN
-
SFO
1 stop26h 46m
Frontier
Sun 4/269:58 am
SFO
-
SAN
Nonstop1h 42m
Frontier
Deal found 4/2$104
This Expedia deal was found by Cheapflights users on 4/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:30 pm
SAN
-
SFO
Nonstop1h 43m
Multiple Airlines
Fri 5/89:56 pm
SFO
-
SAN
Nonstop1h 46m
Multiple Airlines
Deal found 4/3$105
This Trip.com deal was found by Cheapflights users on 4/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:43 am
SAN
-
SFO
Nonstop1h 50m
Multiple Airlines
Wed 5/2710:01 pm
SFO
-
SAN
Nonstop1h 43m
Multiple Airlines
Deal found 4/5$106
This Southwest deal was found by Cheapflights users on 4/2. 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 4/252:25 pm
SAN
-
SFO
Nonstop1h 45m
Southwest
Wed 4/291:20 pm
SFO
-
SAN
1 stop7h 10m
Southwest
Deal found 4/2$107
This Frontier deal was found by Cheapflights users on 4/2. 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 6/177:31 pm
SAN
-
SFO
Nonstop1h 50m
Frontier
Tue 6/2310:06 pm
SFO
-
SAN
Nonstop1h 43m
Frontier
Deal found 4/2$108
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:44 pm
SAN
-
SFO
Nonstop1h 52m
Frontier
Wed 5/136:00 am
SFO
-
SAN
1 stop17h 50m
Frontier
Deal found 4/6$109
This Trip.com deal was found by Cheapflights users on 4/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:45 pm
SAN
-
SFO
Nonstop1h 46m
Alaska Airlines
Tue 5/266:16 am
SFO
-
SAN
Nonstop1h 42m
Alaska Airlines
Deal found 4/4$110
This Super.com deal was found by Cheapflights users on 4/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:44 pm
SAN
-
SFO
Nonstop1h 52m
Frontier
Sat 5/167:01 pm
SFO
-
SAN
Nonstop1h 51m
Frontier
Deal found 4/6$111
This Frontier deal was found by Cheapflights users on 4/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:10 pm
SAN
-
SFO
Nonstop2h 01m
Frontier
Fri 5/159:56 pm
SFO
-
SAN
Nonstop1h 46m
Frontier
Deal found 4/6$112
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 4/309:19 am
SAN
-
SFO
Nonstop1h 52m
Frontier
Sun 5/310:29 am
SFO
-
SAN
1 stop21h 17m
Frontier
Deal found 4/6$113
This Kiwi.com deal was found by Cheapflights users on 4/3. 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 4/252:31 pm
SAN
-
SFO
Nonstop1h 41m
Multiple Airlines
Sun 4/269:58 am
SFO
-
SAN
Nonstop1h 42m
Multiple Airlines
Deal found 4/3$114
This Super.com deal was found by Cheapflights users on 4/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:19 am
SAN
-
SFO
Nonstop1h 52m
Frontier
Thu 4/309:58 am
SFO
-
SAN
Nonstop1h 42m
Frontier
Deal found 4/3$115

Find 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 April 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$104
(Flightnetwork)

One-way from

$55
(Kiwi.com)

Popular in

March

Cheapest in

May

Average price

$159
Provider with most accurate pricing for San Diego-San Francisco flight deals.
Provider most trusted by Cheapflights users for San Diego-San Francisco flights.
From San Diego to Fremont
One-way flight from San Diego to Fremont
Highest demand for flights based on searches. 19% potential increase in price ($42 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 April 7, 2026.
Use the filters below to find and compare flights from San Diego to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 8/19

5:30 pm-9:20 pm

1 stop3h 50m

San Francisco

Tue 8/25

11:15 am-1:00 pm

Nonstop1h 45m

$127

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 5/20

8:40 am-3:20 pm

2 stops6h 40m

San Francisco

Wed 5/27

10:05 am-11:40 am

Nonstop1h 35m

$132
Quickest round-trip

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 5/2

10:05 am-11:40 am

Nonstop1h 35m

San Francisco

Sun 5/3

6:00 am-7:35 am

Nonstop1h 35m

$137

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 5/19

8:40 am-3:20 pm

2 stops6h 40m

San Francisco

Wed 5/27

5:55 am-12:40 pm

2 stops6h 45m

$147

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 5/2

8:50 am-5:15 pm

2 stops8h 25m

San Francisco

Sat 5/9

11:45 am-6:45 pm

2 stops7h 00m

$147

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 5/13

12:45 pm-7:55 pm

2 stops7h 10m

San Francisco

Sun 5/17

6:00 am-7:35 am

Nonstop1h 35m

$152

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 6/3

4:25 pm-11:15 pm

2 stops6h 50m

San Francisco

Thu 6/4

8:45 am-10:25 am

Nonstop1h 40m

$152

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Wed 5/13

6:45 pm-10:23 pm

1 stop3h 38m

San Francisco

Sat 5/16

6:20 pm-11:15 pm

1 stop4h 55m

$157

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Sat 5/9

3:15 pm-9:19 pm

1 stop6h 04m

San Francisco

Mon 5/11

11:55 am-6:03 pm

1 stop6h 08m

$177

San DiegoSan Francisco

SAN - SFO

SANSFO

San Diego

Tue 5/5

1:35 pm-7:55 pm

2 stops6h 20m

San Francisco

Thu 5/7

3:00 pm-9:10 pm

2 stops6h 10m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

Showing 1-10 of 22 resultsSorted by cheapest first
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3

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 April 3, 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 90 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, May is the cheapest month in which you can book a flight from San Diego to Fremont (average of $32). Flying from San Diego to Fremont in February is currently the most expensive (average of $107). 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 April 7, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 23% 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 April 4, 2026.

Travelers seeking maximum savings on their San Diego to Fremont flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday evenings 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 April 7, 2026.

The most flights from SAN to FR8 are scheduled on a Friday (79 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (46 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 April 7, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andHawaiian 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.

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

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.

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

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.

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

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.

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

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.

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

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.

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Comfort

8.0

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 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 62 outbound flights to Fremont per day. 9 airlines have flights to Fremont from San Diego on a regular basis.

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

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

    Departing from San Diego to Fremont will take you 3h 50m. Airlines will cover a distance of 446 mi.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $29. Southwest flights start at $38 while deals on Hawaiian Airlines start at $38 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: Iberia (100%), Copa Airlines (91%), SWISS (87%).

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

    While on average a flight from San Diego to Fremont is generally $763, our data shows the cheapest flight currently is $59. When looking at the most popular route, (San Diego - San Francisco), you can expect to pay $84 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, May is the cheapest month in which you can book a flight from San Diego to Fremont (average of $32). Flying from San Diego to Fremont in February is currently the most expensive (average of $107). 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 Diego to Fremont

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

Top 9 airlines flying from San Diego to Fremont

Discover the top 9 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 April 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$28Average$133FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$29Average$97FlexibilityNo cancel feeOn-time65%
FrontierCheapest$29Average$89FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$58Average$178FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$68Average$259FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$77Average$209FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$77Average$200FlexibilityNo cancel feeOn-time75%
DeltaCheapest$88Average$156FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$217Average$366FlexibilityNo cancel feeOn-time71%

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