$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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SFO
Feb 13 — Feb 201
1 adult, Economy
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Find cheap flights from San Diego to Fremont with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Monday
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 14, 2026.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $112 (Alaska Airlines) |
One-way from | $59 (Alaska Airlines) |
Popular in | November |
Cheapest in | March |
Average price | $138 |
Find flight deals from San Diego to Fremont
Cheapest flights from San Diego to FremontExplore 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 14, 2026.
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 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 2/32:51 pm
SAN
- SFO
Nonstop1h 41m
Alaska Airlines
Tue 2/36:40 pm
SFO
- SAN
Nonstop1h 42m
Alaska Airlines
Deal found 1/12![Alaska Airlines logo]()
$112
This Southwest deal was found by Cheapflights users on 1/13. 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 5/133:05 pm
SAN
- SFO
1 stop8h 10m
Southwest
Sat 5/166:00 am
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 1/13![Southwest logo]()
$113
This Alaska Airlines deal was found by Cheapflights users on 1/12. 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 2/38:59 pm
SAN
- SFO
Nonstop1h 48m
Alaska Airlines
Thu 2/57:00 am
SFO
- SAN
Nonstop1h 35m
Alaska Airlines
Deal found 1/12![Alaska Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 1/14. 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 4/218:35 am
SAN
- SFO
2 stops10h 30m
Southwest
Sat 4/256:00 am
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 1/14![Southwest logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 2/266:25 am
SAN
- SFO
1 stop11h 33m
Frontier
Thu 3/58:43 am
SFO
- SAN
1 stop6h 34m
Frontier
Deal found 1/12![Frontier logo]()
$120
This Southwest deal was found by Cheapflights users on 1/13. 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 2/38:20 am
SAN
- SFO
2 stops6h 15m
Southwest
Wed 2/412:30 pm
SFO
- SAN
1 stop7h 10m
Southwest
Deal found 1/13![Southwest logo]()
$122
This United Airlines deal was found by Cheapflights users on 1/12. 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.
Mon 2/96:15 am
SAN
- SFO
1 stop5h 45m
United Airlines
Wed 2/1110:40 pm
SFO
- SAN
Nonstop1h 35m
United Airlines
Deal found 1/12![United Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/119:59 pm
SAN
- SFO
Nonstop1h 48m
Multiple Airlines
Wed 2/187:15 pm
SFO
- SAN
1 stop20h 02m
Multiple Airlines
Deal found 1/14![Multiple Airlines logo]()
$124
This Jettzy deal was found by Cheapflights users on 1/12. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:09 pm
SAN
- SFO
Nonstop1h 50m
Hawaiian Airlines
Thu 3/56:40 am
SFO
- SAN
Nonstop1h 38m
Hawaiian Airlines
Deal found 1/12![Hawaiian Airlines logo]()
$125
This Alaska Airlines deal was found by Cheapflights users on 1/14. 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 3/278:59 pm
SAN
- SFO
Nonstop1h 53m
Alaska Airlines
Wed 4/16:35 am
SFO
- SAN
Nonstop1h 40m
Alaska Airlines
Deal found 1/14![Alaska Airlines logo]()
$126
This Southwest deal was found by Cheapflights users on 1/12. 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 2/312:00 pm
SAN
- SFO
1 stop6h 05m
Southwest
Thu 2/59:10 am
SFO
- SAN
Nonstop1h 35m
Southwest
Deal found 1/12![Southwest logo]()
$127
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Tue 2/104:00 pm
SAN
- SFO
Nonstop1h 46m
United Airlines
Tue 2/177:06 pm
SFO
- SAN
Nonstop1h 43m
United Airlines
Deal found 1/13![United Airlines logo]()
$128
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 14, 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
Mon 2/23
11:25 am-1:10 pm
Nonstop1h 45m
San Francisco
Tue 2/24
6:05 am-4:45 pm
2 stops10h 40m
$112
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Mon 2/9
7:52 pm-9:39 pm
Nonstop1h 47m
San Francisco
Thu 2/12
7:00 am-8:40 am
Nonstop1h 40m
$117
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 3/19
8:59 pm-10:52 pm
Nonstop1h 53m
San Francisco
Tue 3/24
6:35 am-8:15 am
Nonstop1h 40m
$117
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Fri 2/20
6:25 am-8:15 am
Nonstop1h 50m
San Francisco
Sat 2/21
6:15 am-7:45 am
Nonstop1h 30m
$117
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Tue 2/3
12:49 pm-2:39 pm
Nonstop1h 50m
San Francisco
Thu 2/5
10:40 pm-12:15 am
Nonstop1h 35m
$117
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Tue 2/3
2:51 pm-4:32 pm
Nonstop1h 41m
San Francisco
Wed 2/4
2:52 pm-4:30 pm
Nonstop1h 38m
$117
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 2/26
8:55 pm-10:40 pm
Nonstop1h 45m
San Francisco
Sat 2/28
3:20 pm-4:50 pm
Nonstop1h 30m
$117
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Mon 2/9
7:52 pm-9:39 pm
Nonstop1h 47m
San Francisco
Wed 2/11
7:00 am-8:37 am
Nonstop1h 37m
$117
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 2/5
8:59 pm-10:47 pm
Nonstop1h 48m
San Francisco
Wed 2/11
9:16 am-10:55 am
Nonstop1h 39m
$132
San DiegoSan Francisco
SAN - SFO
SANSFO
San Diego
Thu 2/5
8:59 pm-10:47 pm
Nonstop1h 48m
San Francisco
Sun 2/8
7:00 am-8:35 am
Nonstop1h 35m
$132
Showing 1-10 of 21 results
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 9, 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 $19). 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 14, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 32% 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 10, 2026.
Travelers seeking maximum savings on their San Diego to Fremont flight should consider departing on Monday 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 14, 2026.
The most flights from SAN to FR8 are scheduled on a Tuesday (75 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 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 January 14, 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.
Food
7.1
Comfort
7.8
Boarding
8.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Comfort
7.8
Boarding
8.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Comfort
7.8
Boarding
8.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Comfort
7.8
Boarding
8.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Comfort
7.8
Boarding
8.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Food
7.1
Comfort
7.8
Boarding
8.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
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.
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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 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$24 | Average$94 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$29 | Average$93 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$30 | Average$138 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$57 | Average$160 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$58 | Average$192 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$77 | Average$183 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$88 | Average$197 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$197 | Average$357 | FlexibilityNo cancel fee | On-time71% |